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Dr. Shaimaa Selim is an Associate Professor of Nutrition and Clinical Nutrition. She graduated PhD from University of Helsinki, Finland in 2015. Dr. Shaimaa Selim published different articles in high impact factor journals such as Food Chemistry, Animal Nutrition, Livestock Science,Journal of Dairy Science,PLoS ONE,Physiological Genomics, etc.
Early feeding post-hatching (EFPH) can impact the immune response and modify the immunity-related gene expression. Therefore, we aimed to examine the effects of EFPH with different diets composition versus fasting during the first 72 h of chick’s life on the histomorphological structures of the liver, proventriculus, central and peripheral lymphoid organs, and immunity-related genes in layer-type chicks during the brooding period. A total of 400 chicks were randomly allotted into 4 groups with 4 replicates each. The experimental groups during the first 72 h of life were: feed and water deprivation (control, T1), feeding a starter layer diet (20% CP and 11.84 MJ/kg ME, T2), feeding a starter layer diet contained 3% molasses in its composition (20% CP and 11.81 MJ/kg ME; T3), and feeding a starter broiler diet (23% CP and 12.68 MJ/kg ME, T4). After the first 72 h of chick’s life, all chicks were fed ad libitum the T2 diet. EFPH had no negative effect on the development of the lymphoid or digestive organs in chicks. Greater relative weights of the spleen and bursa of Fabricius (p< 0.05) were observed in the early fed chicks compared to control at day 14 of age. Histomorphological examination revealed an increase (p< 0.05) in thymus cortex and cortex:medulla in the T3 and T4 groups compared to the fasted ones at day 28 of age. Pelicae height, follicular width, cortex, and cortex:medulla of bursa were improved (p< 0.01) in the fed groups compared to fasted chicks, with resultant influences on the primary lymphoid organs. Compared to control, higher germinal center areas and white pulp of the spleen (p< 0.05) were recorded in the early fed chicks, implying augmented proliferation and maturation of B cells in the secondary lymphoid organs. In the liver, a strong positive reaction to Best’s carmine stain in the early fed groups, indicating that the liver of these chicks had numerous glycogen granules or greater glycogen density in the cytoplasm of hepatocytes. There was a significant enhancement in the proventriculus mucosal and gland thickness, as well as fold height (p< 0.05) in the early fed chicks. The expression levels of splenic Toll-like receptor 2, interleukin 4, tumor necrosis factor α, and interferon gamma were up-regulated (p< 0.01) in most of the early fed chicks (T2, T3, and T4) compared to fasted ones at 14 day of age. In conclusion, EFPH could modify the splenic-immunity related genes and modulate the histomorphology of the digestive (liver and proventriculus) and lymphoid organs in layer-type chicks during the brooding period.
Shaimaa Selim; Nazema Abdel-Megeid; Manal Abou-Elnaga; Samy Mahmoud. Early Nutrition with Different Diets Composition versus Fasting on Immunity-Related Gene Expression and Histomorphology of Digestive and Lymphoid Organs of Layer-Type Chicks. Animals 2021, 11, 1568 .
AMA StyleShaimaa Selim, Nazema Abdel-Megeid, Manal Abou-Elnaga, Samy Mahmoud. Early Nutrition with Different Diets Composition versus Fasting on Immunity-Related Gene Expression and Histomorphology of Digestive and Lymphoid Organs of Layer-Type Chicks. Animals. 2021; 11 (6):1568.
Chicago/Turabian StyleShaimaa Selim; Nazema Abdel-Megeid; Manal Abou-Elnaga; Samy Mahmoud. 2021. "Early Nutrition with Different Diets Composition versus Fasting on Immunity-Related Gene Expression and Histomorphology of Digestive and Lymphoid Organs of Layer-Type Chicks." Animals 11, no. 6: 1568.
As the world population increases, there will be an increase in demand for poultry meat. To satisfy this requirement, sustainably will be a significant challenge as different countries in the world face different health problems. Additionally, for decades, poultry nutritionists have worked on sustainability in broiler manufacturing plants. The usage of short- and medium-chain fatty acids (MCFAs), which have positive effects as growth promoters and immunostimulants, is a pioneering way to decrease the cost of diets and improve environmentally friendly and sustainable production in this critical era. This study aimed at evaluating the influences of alpha-monoglyceride (alpha-monolaurin) on the growth performance, biochemical parameters, lipid profiles, liver oxidative stress, and immune response in broilers. Alpha-monolaurin was included at the levels of 0 (control), 0.25, 0.5, and 1 g/kg in broiler diets. After 33 days, dietary supplementation of alpha-monolaurin showed no impact on the feed intake; however, broilers fed 0.5 g/kg feed displayed a significantly reduced food conversion ratio, as compared to the control (p ≤ 0.05). However, body weight and body weight gain tended to increase after 0.25 g/kg alpha-monolaurin supplementation, as compared to other groups. The highest European production efficiency factor (EPEF) was obtained with 0.25 g/kg alpha-monolaurin supplementation. The ether extract utilization and spleen weight were improved substantially (p ≤ 0.05) by alpha-monolaurin supplementation, but muscle and other organ weights were not affected. Plasma alanine transaminase (ALT) was decreased significantly by alpha-monolaurin supplementation, while plasma total protein and albumin were enhanced (p ≤ 0.05). Interestingly, broilers fed alpha-monolaurin displayed an increased antibody titer of the Newcastle disease (ND) virus and muscle unsaturated fatty acid content, and a decreased liver content of malondialdehyde (MDA). It could be assumed that dietary supplementation of alpha-monolaurin positively impacts birds’ feed efficiency and immune response and can be applied as a natural immune enhancer in the broiler industry.
Ahmed Saleh; Bahaa El-Gharabawy; Aziza Hassan; Nemat Badawi; Yahya Eid; Shaimaa Selim; Mustafa Shukry; Mahmoud Dawood. Effect of Dietary Inclusion of Alpha-Monolaurin on the Growth Performance, Lipid Peroxidation, and Immunity Response in Broilers. Sustainability 2021, 13, 5231 .
AMA StyleAhmed Saleh, Bahaa El-Gharabawy, Aziza Hassan, Nemat Badawi, Yahya Eid, Shaimaa Selim, Mustafa Shukry, Mahmoud Dawood. Effect of Dietary Inclusion of Alpha-Monolaurin on the Growth Performance, Lipid Peroxidation, and Immunity Response in Broilers. Sustainability. 2021; 13 (9):5231.
Chicago/Turabian StyleAhmed Saleh; Bahaa El-Gharabawy; Aziza Hassan; Nemat Badawi; Yahya Eid; Shaimaa Selim; Mustafa Shukry; Mahmoud Dawood. 2021. "Effect of Dietary Inclusion of Alpha-Monolaurin on the Growth Performance, Lipid Peroxidation, and Immunity Response in Broilers." Sustainability 13, no. 9: 5231.
The practical usage of untraditional feedstuffs such as sunflower meal (SFM) in laying hens nutrition in developing countries has received considerable attention. SFM is a by-product of the sunflower oil industry and has been progressively added to bird’s diets. Sunflower meal (SFM) is gaining great interest as a feed ingredient due to its eminent crude protein content, low anti-nutritional compounds, and low price. The current experiment was aimed to assess the production efficiency, egg quality, yolk fatty acids composition, and nutrient digestibility of laying hens fed SFM. A total of 162 Bovans Brown laying hens aged 60 weeks old were randomly allocated using a completely randomized design into three experimental groups of nine replicates each (n = six/replicate) for eight weeks. The dietary treatments involved a control (basal diet) and two levels of SFM, 50 and 100 g/kg feed. The dietary treatments did not influence live weight gain, feed intake, and egg mass. On one hand, the laying rate was increased; on the other hand, the feed conversion ratio and broken eggs rate of laying hens were decreased (p < 0.05) by the dietary inclusion of SFM. Dietary treatments had no effect on the egg’s quality characteristics except the yolk color and yolk height were larger (p = 0.01) for laying hens fed SFM compared with those fed the control. Dietary inclusion of SFM decreased (p < 0.05) the content of cholesterol in the egg yolk. Still, it increased the yolk contents of vitamin E, calcium, linoleic acid, linolenic acid, and oleic acid (p < 0.05). Furthermore, the dietary inclusion of SFM increased crude protein and calcium digestibility, but decreased the ether extract digestibility. In conclusion, our results suggested that the dietary inclusion of SFM, up to 100 g/kg at a late phase of laying, could improve the production performance, some of the egg quality traits, and nutrient digestibility while decreasing egg yolk cholesterol.
Ahmed Saleh; Ahmed El-Awady; Khairy Amber; Yahya Eid; Mohammed Alzawqari; Shaimaa Selim; Mohamed Soliman; Mustafa Shukry. Effects of Sunflower Meal Supplementation as a Complementary Protein Source in the Laying Hen’s Diet on Productive Performance, Egg Quality, and Nutrient Digestibility. Sustainability 2021, 13, 3557 .
AMA StyleAhmed Saleh, Ahmed El-Awady, Khairy Amber, Yahya Eid, Mohammed Alzawqari, Shaimaa Selim, Mohamed Soliman, Mustafa Shukry. Effects of Sunflower Meal Supplementation as a Complementary Protein Source in the Laying Hen’s Diet on Productive Performance, Egg Quality, and Nutrient Digestibility. Sustainability. 2021; 13 (6):3557.
Chicago/Turabian StyleAhmed Saleh; Ahmed El-Awady; Khairy Amber; Yahya Eid; Mohammed Alzawqari; Shaimaa Selim; Mohamed Soliman; Mustafa Shukry. 2021. "Effects of Sunflower Meal Supplementation as a Complementary Protein Source in the Laying Hen’s Diet on Productive Performance, Egg Quality, and Nutrient Digestibility." Sustainability 13, no. 6: 3557.
Moringa oleifera leaves (MOL) have gained great interest as a non-traditional feed ingredient due to their unique nutritional value. Therefore, the objective of the current study was to evaluate the effects of graded dietary supplementation levels with MOL on performance, carcass characteristics, antioxidant capacity, blood biochemical constituents, meat quality, and fatty acids profile of growing rabbits. A total of 120 weaned New Zealand white rabbits (6 weeks old) were randomly allotted into 4 dietary groups with 5 replicates each (n = 6), which were fed for 42 days with a basal diet as control or 3 experimental diets supplemented with 5, 10, or 15 g/kg MOL. The results showed that, compared to the control group, the dietary inclusion of MOL at a level of 10 and 15 g/kg DM linearly increased (p < 0.01) final live weight (2403.3 and 2498.2 vs. 2166.6) and average daily weight gain (36.5 and 35.51 g/d vs. 28.72 g/d), and enhanced feed conversion ratio (2.49 and 2.50 vs. 3.14). The dietary supplementation with MOL linearly increased dressing out percentage, spleen index, intestinal length, and decreased abdominal fat index (p < 0.01). Greater serum levels of total protein and globulin, but lower alanine aminotransferase and aspartate aminotransferase were observed in the MOL-fed rabbits (p < 0.01). Serum levels of total triglycerides, cholesterol, and low-density lipoprotein (p < 0.05) were decreased linearly and quadratically in the MOL groups compared with the control. Glutathione peroxidase activity increased (p < 0.01), whereas malondialdehyde decreased (p < 0.01) linearly and quadratically in both serum and meat, in response to dietary MOL supplementation. Dietary MOL supplementation increased the meat crude protein content but lowered the relative content of ether extract in the meat (p < 0.05). The relative content of the meat n-3 PUFA was increased by about 33.71%, 29.46%, and 24.36% for the MOL0.5%, MOL1%, and MOL1.5% groups compared to control. In conclusion, MOL could be used at a level of 1.5g/kg of the growing rabbits’ diets with beneficial impacts on performance, antioxidant capacity, and the nutritional value of the meat.
Shaimaa Selim; Mahmoud Seleiman; Mohamed Hassan; Ahmed Saleh; Mohamed Mousa. Impact of Dietary Supplementation with Moringa oleifera Leaves on Performance, Meat Characteristics, Oxidative Stability, and Fatty Acid Profile in Growing Rabbits. Animals 2021, 11, 248 .
AMA StyleShaimaa Selim, Mahmoud Seleiman, Mohamed Hassan, Ahmed Saleh, Mohamed Mousa. Impact of Dietary Supplementation with Moringa oleifera Leaves on Performance, Meat Characteristics, Oxidative Stability, and Fatty Acid Profile in Growing Rabbits. Animals. 2021; 11 (2):248.
Chicago/Turabian StyleShaimaa Selim; Mahmoud Seleiman; Mohamed Hassan; Ahmed Saleh; Mohamed Mousa. 2021. "Impact of Dietary Supplementation with Moringa oleifera Leaves on Performance, Meat Characteristics, Oxidative Stability, and Fatty Acid Profile in Growing Rabbits." Animals 11, no. 2: 248.
Aim: This study aimed to investigate the effects of protein reduction with supplementation of limiting amino acids (AA, tryptophan, threonine, and valine) on growth performance, blood biochemical, immunity parameters, and carcass traits in broiler chickens. Materials and Methods: Three hundred one-day-old broiler chicks were randomly allotted into three treatment groups, with five replicates per treatment and 20 broiler chickens per replicate. The three experimental diets were formulated with different dietary crude protein (CP) %, (control [CON] and CON with 1% [CP-1%] or 2% [CP-2%] less CP units) during the starter, grower, and finisher phases. The CP of the experimental diets were 22, 21, and 20% for the starting period (day 1-14); 20, 19, and 18% CP for the growing period (day 15-28); and 18, 17, and 16% CP for the finishing period (day 29-35) in CON, CP-1%, and CP-2%, respectively. The low-CP diets (CP-1% and CP-2%) were supplemented with combined AA, threonine+tryptophan+valine, to meet the respective levels of the CON diet. Results: The CP-2% group had greater (p
Reham Abou-Elkhair; Hamada Ahmed; Sara Ketkat; Shaimaa Selim. Supplementation of a low-protein diet with tryptophan, threonine, and valine and its impact on growth performance, blood biochemical constituents, immune parameters, and carcass traits in broiler chickens. February-2020 2020, 13, 1234 -1244.
AMA StyleReham Abou-Elkhair, Hamada Ahmed, Sara Ketkat, Shaimaa Selim. Supplementation of a low-protein diet with tryptophan, threonine, and valine and its impact on growth performance, blood biochemical constituents, immune parameters, and carcass traits in broiler chickens. February-2020. 2020; 13 (6):1234-1244.
Chicago/Turabian StyleReham Abou-Elkhair; Hamada Ahmed; Sara Ketkat; Shaimaa Selim. 2020. "Supplementation of a low-protein diet with tryptophan, threonine, and valine and its impact on growth performance, blood biochemical constituents, immune parameters, and carcass traits in broiler chickens." February-2020 13, no. 6: 1234-1244.
The effect of including sugar beet pulp (SBP) in laying hen diets on performance, egg quality, blood chemistry and egg lipid peroxidation was studied. A total of 200 laying hens were randomly assigned into 4 groups and were offered diets containing SBP at the level of 0%, 3%, 5% and 7%. The dietary inclusion of SBP linearly (P < 0.01) increased feed intake, egg production, egg weight and mass, and improved feed conversion ratio, yolk color core and Haugh unit. Eggs laid by hens receiving SBP had linearly (P < 0.01) greater protein and lower ether extract. Dietary inclusion of SBP linearly (P < 0.01) decreased egg yolk malondialdehyde, cholesterol and triglyceride, while increased glutathione peroxidase. Laying hens fed SBP had lower (P < 0.01) serum total lipids, cholesterol, alanine aminotransferase, aspartate aminotransferase, and creatinine. Dietary inclusion of SBP could improve hen performance, health, egg quality, and egg shelf life.
Shaimaa Selim; Eman Hussein. Production performance, egg quality, blood biochemical constituents, egg yolk lipid profile and lipid peroxidation of laying hens fed sugar beet pulp. Food Chemistry 2019, 310, 125864 .
AMA StyleShaimaa Selim, Eman Hussein. Production performance, egg quality, blood biochemical constituents, egg yolk lipid profile and lipid peroxidation of laying hens fed sugar beet pulp. Food Chemistry. 2019; 310 ():125864.
Chicago/Turabian StyleShaimaa Selim; Eman Hussein. 2019. "Production performance, egg quality, blood biochemical constituents, egg yolk lipid profile and lipid peroxidation of laying hens fed sugar beet pulp." Food Chemistry 310, no. : 125864.
E. Hussein; Shaimaa Selim. Efficacy of yeast and multi-strain probiotic alone or in combination on growth performance, carcass traits, blood biochemical constituents, and meat quality of broiler chickens. Livestock Science 2018, 216, 153 -159.
AMA StyleE. Hussein, Shaimaa Selim. Efficacy of yeast and multi-strain probiotic alone or in combination on growth performance, carcass traits, blood biochemical constituents, and meat quality of broiler chickens. Livestock Science. 2018; 216 ():153-159.
Chicago/Turabian StyleE. Hussein; Shaimaa Selim. 2018. "Efficacy of yeast and multi-strain probiotic alone or in combination on growth performance, carcass traits, blood biochemical constituents, and meat quality of broiler chickens." Livestock Science 216, no. : 153-159.
M. K. Abou-Elnaga; S. Selim. Influence of early feeding with different diet composition on performance and intestinal morphology of layer-type chicks during the brooding period. Journal of Animal and Feed Sciences 2018, 27, 268 -275.
AMA StyleM. K. Abou-Elnaga, S. Selim. Influence of early feeding with different diet composition on performance and intestinal morphology of layer-type chicks during the brooding period. Journal of Animal and Feed Sciences. 2018; 27 (3):268-275.
Chicago/Turabian StyleM. K. Abou-Elnaga; S. Selim. 2018. "Influence of early feeding with different diet composition on performance and intestinal morphology of layer-type chicks during the brooding period." Journal of Animal and Feed Sciences 27, no. 3: 268-275.
This study was conducted to evaluate the effects of supplementing laying hen diet with phytogenic additives on laying performance, egg quality, blood constituents and egg lipid peroxidation. Two hundred Lohmann Brown Lite laying hens were randomly allotted to 4 dietary treatments: control (without phytogenic additive), fennel seeds (5 g/kg), black cumin seeds (5 g/kg) and hot red pepper (5 g/kg). Each of the 4 diets was fed to 5 replicates of 10 hens for 8 weeks. No significant differences were observed in body weight or feed intake between the groups. Dietary inclusion of fennel followed by red pepper improved (P < 0.05) egg weight, egg production, egg mass and feed conversion ratio compared with control. Higher yolk shape index, shell and albumen weight percentages and Haugh unit (P < 0.05) were recorded in the fennel supplemented group compared with control. The egg yolk color score increased by the addition of fennel or hot red pepper in laying hen diets compared with control. The inclusion of black cumin or hot red pepper decreased serum and egg yolk cholesterol and malondialdehyde concentrations (P < 0.05) compared with control. Serum aspartate aminotransferase concentration was lower in black cumin group (P < 0.05) than in other treatments. In conclusion, the best laying performance and egg quality were obtained by dietary inclusion of fennel, followed by hot red pepper and black cumin. Dietary supplementation of black cumin or red pepper may lead to the development of low-cholesterol concentration and better antioxidant capacity of eggs.
Reham Abou-Elkhair; Shaimaa Selim; Eman Hussein. Effect of supplementing layer hen diet with phytogenic feed additives on laying performance, egg quality, egg lipid peroxidation and blood biochemical constituents. Animal Nutrition 2018, 4, 394 -400.
AMA StyleReham Abou-Elkhair, Shaimaa Selim, Eman Hussein. Effect of supplementing layer hen diet with phytogenic feed additives on laying performance, egg quality, egg lipid peroxidation and blood biochemical constituents. Animal Nutrition. 2018; 4 (4):394-400.
Chicago/Turabian StyleReham Abou-Elkhair; Shaimaa Selim; Eman Hussein. 2018. "Effect of supplementing layer hen diet with phytogenic feed additives on laying performance, egg quality, egg lipid peroxidation and blood biochemical constituents." Animal Nutrition 4, no. 4: 394-400.
Maize cultivation for silage could be a sustainable option in Boreal conditions, especially when combined with nutrient recycling. Effects of digestate (sludge from biogas of domestic origin) application in comparison with synthetic fertilizer and two maturity stages on chemical composition and in vitro digestibility of whole-crop maize were investigated. Starch, neutral detergent fiber, water soluble carbohydrate (WSC) and digestible organic matter (DOM) contents of maize did not differ in response to the two fertilizer treatments. However, starch, DOM and metabolizable energy of maize increased, while ash, crude protein and WSC contents decreased with increasing maize maturity. Heavy metals in maize fertilized with digestate remained low. The results indicate that whole-crop maize fertilized with digestate and harvested at 150 days after sowing is a promising feed and has good nutritive value, even in Boreal conditions.
Mahmoud F. Seleiman; Shaimaa Selim; Seija Jaakkola; Pirjo S.A. Mäkelä. Chemical composition and in vitro digestibility of whole-crop maize fertilized with synthetic fertilizer or digestate and harvested at two maturity stages in Boreal growing conditions. Agricultural and Food Science 2017, 26, 47 .
AMA StyleMahmoud F. Seleiman, Shaimaa Selim, Seija Jaakkola, Pirjo S.A. Mäkelä. Chemical composition and in vitro digestibility of whole-crop maize fertilized with synthetic fertilizer or digestate and harvested at two maturity stages in Boreal growing conditions. Agricultural and Food Science. 2017; 26 (1):47.
Chicago/Turabian StyleMahmoud F. Seleiman; Shaimaa Selim; Seija Jaakkola; Pirjo S.A. Mäkelä. 2017. "Chemical composition and in vitro digestibility of whole-crop maize fertilized with synthetic fertilizer or digestate and harvested at two maturity stages in Boreal growing conditions." Agricultural and Food Science 26, no. 1: 47.
Prepartal energy overfeeding may predispose cows to a state of increased insulin resistance with greater lipolysis after parturition. The aim of the study was to evaluate the effects of prepartal overfeeding in terms of abundant grass silage ration on the liver and subcutaneous adipose tissue (SAT) gene expression around parturition. Sixteen multiparous Finnish Ayrshire dairy cows were fed ad libitum either grass silage [high energy, HE; 144 MJ/d of metabolizable energy (ME) intake, n=8] or a mixture of grass silage, wheat straw, and rapeseed meal [55:40:5 (CON), 109 MJ/d of ME, n=8] during the dry period (58.2±4.89 d, mean ± standard deviation). Tissue biopsies and blood samples were collected at -14 (±4.98), 1, and 7 d relative to the actual parturition date. The HE cows had greater total dry matter intake, ME intake, and ME balance during the dry period than the CON cows. Compared with CON, the increases in body weight and body condition score were greater in HE during the dry period. Milk yield during the first 2 wk of lactation was not different between the groups. Plasma glucose, nonesterified fatty acids, insulin, glucagon, and β-hydroxybutyrate did not differ between the groups during the transition period. Dietary treatment did not affect hepatic triglyceride content; however, a delayed increase in hepatic total lipid content was observed in the HE cows at d 1 postpartum. Hepatic cytosolic phosphoenolpyruvate carboxykinase 1 mRNA expression was lower in HE than in CON at d 1 and 7 postpartum. Adiponectin receptor 1 and 2 mRNA abundance tended to be lower in SAT of HE than CON. Lower lipoprotein lipase, leptin, and stearoyl-coenzyme A desaturase mRNA abundances were observed at d 7 postpartum in SAT of the HE cows compared with the CON cows. We concluded that prepartal ad libitum feeding of grass silage may decrease insulin sensitivity and lipogenesis in SAT during peripartal period and may attenuate the increase of hepatic gluconeogenic capacity from propionate compared with a controlled-energy diet.
S. Selim; Tuomo Juhani Kokkonen; J. Taponen; Aila Vanhatalo; Kari Elo. Effect of prepartal ad libitum feeding of grass silage on transcriptional adaptations of the liver and subcutaneous adipose tissue in dairy cows during the periparturient period. Journal of Dairy Science 2015, 98, 5515 -5528.
AMA StyleS. Selim, Tuomo Juhani Kokkonen, J. Taponen, Aila Vanhatalo, Kari Elo. Effect of prepartal ad libitum feeding of grass silage on transcriptional adaptations of the liver and subcutaneous adipose tissue in dairy cows during the periparturient period. Journal of Dairy Science. 2015; 98 (8):5515-5528.
Chicago/Turabian StyleS. Selim; Tuomo Juhani Kokkonen; J. Taponen; Aila Vanhatalo; Kari Elo. 2015. "Effect of prepartal ad libitum feeding of grass silage on transcriptional adaptations of the liver and subcutaneous adipose tissue in dairy cows during the periparturient period." Journal of Dairy Science 98, no. 8: 5515-5528.
Canola meal (CM) is commonly used in poultry diets; however, its use is limited due to anti-nutritive factors. Therefore, this study was conducted to evaluate the effects of feeding various levels of canola meal (CM) with or without multi-enzyme supplement on broiler chickens. Four levels of CM (0, 5, 10 and 20%) were used with or without multi-enzyme (0 or 300 g/ton of diet) in a factorial design 4 × 2 in 8 dietary combinations. During the experimental period (0-42 d of age), inclusion of CM at a level of 5 and 10% without multi-enzyme and at a level of 20% with or without multi-enzyme decreased body weight gain and gain:feed ratio compared to control (CON; P < 0.05). However, there was no difference in the final body weight at day 42 of age between the groups. No differences were found in carcass characteristics between treatments. Inclusion of CM in broiler diet decreased serum antibody titer at 42 d of age compared to the control and enzyme-supplemented CM groups (P < 0.05). Inclusion of CM with multi-enzyme supplement decreased serum total cholesterol, total triglyceride and glutamate oxaloacetate transaminase compared to CON and enzyme-unsupplemented groups (P < 0.05). Diets supplemented with CM had higher serum creatinine than CON and enzyme-supplemented CM groups (P < 0.05). Lower serum triiodothyronine in broilers fed diet supplemented with 10 or 20% CM was noticed (P < 0.05). CM with multi-enzyme supplementation to broiler ration showed a slight increase in net revenue.
Hamada A. Ahmed; Reham Abou-Elkhair; Sara A. Ketkat; Shaimaa Selim. Growth and Economic Performance of Broiler Chickens Fed on Graded Levels of Canola Meal with or without Multi-Enzyme Supplementation. Journal of Agricultural Science 2015, 7, p137 .
AMA StyleHamada A. Ahmed, Reham Abou-Elkhair, Sara A. Ketkat, Shaimaa Selim. Growth and Economic Performance of Broiler Chickens Fed on Graded Levels of Canola Meal with or without Multi-Enzyme Supplementation. Journal of Agricultural Science. 2015; 7 (6):p137.
Chicago/Turabian StyleHamada A. Ahmed; Reham Abou-Elkhair; Sara A. Ketkat; Shaimaa Selim. 2015. "Growth and Economic Performance of Broiler Chickens Fed on Graded Levels of Canola Meal with or without Multi-Enzyme Supplementation." Journal of Agricultural Science 7, no. 6: p137.
Obesity and insulin resistance have been shown to be risk factors for laminitis in horses. The objective of the study was to determine the effect of changes in body condition during the grazing season on insulin resistance and the expression of genes associated with obesity and insulin resistance in subcutaneous adipose tissue (SAT). Sixteen Finnhorse mares were grazing either on cultivated high-yielding pasture (CG) or semi-natural grassland (NG) from the end of May to the beginning of September. Body measurements, intravenous glucose tolerance test (IVGTT), and neck and tailhead SAT gene expressions were measured in May and September. At the end of grazing, CG had higher median body condition score (7 vs. 5.4, interquartile range 0.25 vs. 0.43; P=0.05) and body weight (618 kg vs. 572 kg ± 10.21 (mean ± SEM); P=0.02), and larger waist circumference (P=0.03) than NG. Neck fat thickness was not different between treatments. However, tailhead fat thickness was smaller in CG compared to NG in May (P=0.04), but this difference disappeared in September. Greater basal and peak insulin concentrations, and faster glucose clearance rate (P=0.03) during IVGTT were observed in CG compared to NG in September. A greater decrease in plasma non-esterified fatty acids during IVGTT (P<0.05) was noticed in CG compared to NG after grazing. There was down-regulation of insulin receptor, retinol binding protein 4, leptin, and monocyte chemoattractant protein-1, and up-regulation of adiponectin (ADIPOQ), adiponectin receptor 1 and stearoyl-CoA desaturase (SCD) gene expressions in SAT of both groups during the grazing season (P<0.05). Positive correlations were observed between ADIPOQ and its receptors and between SCD and ADIPOQ in SAT (P<0.01). In conclusion, grazing on CG had a moderate effect on responses during IVGTT, but did not trigger insulin resistance. Significant temporal differences in gene expression profiles were observed during the grazing season.
Shaimaa Selim; Kari Elo; Seija Jaakkola; Ninja Karikoski; Ray Boston; Tiina Reilas; Susanna Särkijärvi; Markku Saastamoinen; Tuomo Juhani Kokkonen. Relationships among Body Condition, Insulin Resistance and Subcutaneous Adipose Tissue Gene Expression during the Grazing Season in Mares. PLOS ONE 2015, 10, e0125968 .
AMA StyleShaimaa Selim, Kari Elo, Seija Jaakkola, Ninja Karikoski, Ray Boston, Tiina Reilas, Susanna Särkijärvi, Markku Saastamoinen, Tuomo Juhani Kokkonen. Relationships among Body Condition, Insulin Resistance and Subcutaneous Adipose Tissue Gene Expression during the Grazing Season in Mares. PLOS ONE. 2015; 10 (5):e0125968.
Chicago/Turabian StyleShaimaa Selim; Kari Elo; Seija Jaakkola; Ninja Karikoski; Ray Boston; Tiina Reilas; Susanna Särkijärvi; Markku Saastamoinen; Tuomo Juhani Kokkonen. 2015. "Relationships among Body Condition, Insulin Resistance and Subcutaneous Adipose Tissue Gene Expression during the Grazing Season in Mares." PLOS ONE 10, no. 5: e0125968.
Overfeeding during the dry period may predispose cows to increased insulin resistance (IR) with enhanced postpartum lipolysis. We studied gene expression in the liver and subcutaneous adipose tissue (SAT) of 16 Finnish Ayrshire dairy cows fed either a controlled energy diet [Con, 99 MJ/day metabolizable energy (ME)] during the last 6 wk of the dry period or high-energy diet (High, 141 MJ/day ME) for the first 3 wk and then gradually decreasing energy allowance during 3 wk to 99 MJ/day ME before the expected parturition. Tissue biopsies were collected at −10, 1, and 9 days, and blood samples at −10, 1, and 7 days relative to parturition. Overfed cows had greater dry matter, crude protein, and ME intakes and ME balance before parturition. Daily milk yield, live weight, and body condition score were not different between treatments. The High cows tended to have greater plasma insulin and lower glucagon/insulin ratio compared with Con cows. No differences in circulating glucose, glucagon, nonesterified fatty acids and β-hydroxybutyrate concentrations, and hepatic triglyceride contents were observed between treatments. Overfeeding compared with Con resulted in lower CPT1A and PCK1 and a tendency for lower G6PC and PC expression in the liver. The High group tended to have lower RETN expression in SAT than Con. No other effects of overfeeding on the expression of genes related to IR in SAT were observed. In conclusion, overfeeding energy prepartum may have compromised hepatic gluconeogenic capacity and slightly affected IR in SAT based on gene expression.
Shaimaa Selim; Siru Salin; J. Taponen; Aila Vanhatalo; Tuomo Juhani Kokkonen; Kari Elo. Prepartal dietary energy alters transcriptional adaptations of the liver and subcutaneous adipose tissue of dairy cows during the transition period. Physiological Genomics 2014, 46, 328 -337.
AMA StyleShaimaa Selim, Siru Salin, J. Taponen, Aila Vanhatalo, Tuomo Juhani Kokkonen, Kari Elo. Prepartal dietary energy alters transcriptional adaptations of the liver and subcutaneous adipose tissue of dairy cows during the transition period. Physiological Genomics. 2014; 46 (9):328-337.
Chicago/Turabian StyleShaimaa Selim; Siru Salin; J. Taponen; Aila Vanhatalo; Tuomo Juhani Kokkonen; Kari Elo. 2014. "Prepartal dietary energy alters transcriptional adaptations of the liver and subcutaneous adipose tissue of dairy cows during the transition period." Physiological Genomics 46, no. 9: 328-337.
Different herbs and spices have been used as feed additives for various purposes in poultry production. This study was conducted to assess the effect of feed supplemented with black pepper (Piper nigrum), turmeric powder (Curcuma longa), coriander seeds (Coriandrum sativum) and their combinations on the performance of broilers. A total of 210 (Cobb) one-d-old chicks were divided into seven groups of 30 birds each. The treatments were: a control group received no supplement, 0.5% black pepper (T1), 0.5% turmeric powder (T2), 2% coriander seeds (T3), a mixture of 0.5% black pepper and 0.5% turmeric powder (T4), a mixture of 0.5% black pepper and 2% coriander seed (T5), and a mixture of 0.5% black pepper, 0.5% turmeric powder and 2% coriander seeds (T6). Higher significant values of body weight gain during the whole period of 5 weeks (p<0.001) were observed in broilers on T1, T3, T5, and T6 compared to control. Dietary supplements with T1, T2, T3, and T6 improved the cumulative G:F of broilers during the whole period of 5 weeks (p<0.001) compared with control. The dressing percentage and edible giblets were not influenced by dietary supplements, while higher values of relative weight of the liver (p<0.05) were obtained in T5 and T6 compared to control. The addition of feed supplements in T5 and T6 significantly increased serum total protein and decreased serum glucose, triglycerides and alkaline phosphatase concentrations compared with the control group (p<0.05). Broilers on T6 showed significant decrease in the serum glutamate pyruvate transaminase concentration (p<0.05) compared to control. The broilers having T5 and T6 supplemented feed had relatively greater antibody titre (p<0.001) at 35 d of age than control. It is concluded that dietary supplements with black pepper or coriander seeds or their combinations enhanced the performance and health status of broiler chickens
R. Abou-Elkhair; Hamada Ahmed; Shaimaa Selim. Effects of Black Pepper (Piper Nigrum), Turmeric Powder (Curcuma Longa) and Coriander Seeds (Coriandrum Sativum) and Their Combinations as Feed Additives on Growth Performance, Carcass Traits, Some Blood Parameters and Humoral Immune. Asian-Australasian Journal of Animal Sciences 2014, 27, 847 -854.
AMA StyleR. Abou-Elkhair, Hamada Ahmed, Shaimaa Selim. Effects of Black Pepper (Piper Nigrum), Turmeric Powder (Curcuma Longa) and Coriander Seeds (Coriandrum Sativum) and Their Combinations as Feed Additives on Growth Performance, Carcass Traits, Some Blood Parameters and Humoral Immune. Asian-Australasian Journal of Animal Sciences. 2014; 27 (6):847-854.
Chicago/Turabian StyleR. Abou-Elkhair; Hamada Ahmed; Shaimaa Selim. 2014. "Effects of Black Pepper (Piper Nigrum), Turmeric Powder (Curcuma Longa) and Coriander Seeds (Coriandrum Sativum) and Their Combinations as Feed Additives on Growth Performance, Carcass Traits, Some Blood Parameters and Humoral Immune." Asian-Australasian Journal of Animal Sciences 27, no. 6: 847-854.
Nutrient administration in-ovo could be considered as an alternative method to improve hatchability and duckling weight followed by better economic performance. On the 12th day of incubation, fertile duck eggs (n= 500) were distributed into 5 groups, each of 100. These were: un-injected control; 0.50 ml distilled water; 0.50 ml amino acids (AA) mixture; 0.75 ml distilled water; and 0.75 ml amino acids mixture. In-ovo injection of 0.50 ml but not 0.75 ml of AA mixture resulted in higher hatchability percentage than un-injected control; however this was not statistically confirmed. In-ovo injection of either 0.50 or 0.75 ml of AA mixture resulted in significantly (P < 0.05) higher body weight at hatch, marketing weight for males not for females, and higher feed intake than the un-injected control. There was no significant difference (P < 0.05) in feed conversion ratio between in-ovo amino acids ducks and un-injected control during the whole experimental periods. Liver weight as a percentage of body weight was higher (P < 0.05) in the in-ovo amino acids injected groups than un-injected control. Lymphoid organs of 0.50 AA-injected male group and 0.75 ml AA-injected female group were significantly (P < 0.05) heavier than the un-injected control. Antibodies titers did not differ (P < 0.05) between in-ovo amino acids injected groups and un-injected control. It is concluded that in-ovo injection of amino acids mixture may improve and accelerate growth and post-hatch performance of Muscovy ducks.
Khalid Gaafarbr; Shaimaa Selim; And Elballal; Salah S. El-Ballal. Effect of in-ovo administration with two levels of amino acids mixture on the performance of Muscovy ducks. Emirates Journal of Food and Agriculture 2013, 25, 58 -65.
AMA StyleKhalid Gaafarbr, Shaimaa Selim, And Elballal, Salah S. El-Ballal. Effect of in-ovo administration with two levels of amino acids mixture on the performance of Muscovy ducks. Emirates Journal of Food and Agriculture. 2013; 25 (1):58-65.
Chicago/Turabian StyleKhalid Gaafarbr; Shaimaa Selim; And Elballal; Salah S. El-Ballal. 2013. "Effect of in-ovo administration with two levels of amino acids mixture on the performance of Muscovy ducks." Emirates Journal of Food and Agriculture 25, no. 1: 58-65.