Although in-feed antibiotics work for broiler chicken´s growth, they are a source of public health hazard. Therefore, there is a need for alternates which can act as growth promoter without deleterious effects on the health of meat consumers. Moringa oleifera is one such phytobiotic which is reported to possess antimicrobial and immuno-modulatory properties. This study investigated the effect of Moringa oleifera leaf powder (MOLP) supplementation on meat quality and bone morphometry of broiler. One-day-old chicks (n=100), divided into five groups (four replicates with n=5), were fed a basal diet (control group) or same diet supplemented with 6, 9, 12 or 15 g/kg MOLP. On d-35, two birds per replicate were euthanized to collect samples of breast muscle, blood and tibia bone. The MOLP supplementation significantly increased pH of breast muscle and ash percentage of tibia bone. The diameter of breast muscle fibres and also weight and weight length index of tibia bone significantly increased with 12 and 15 g/kg MOLP. The water holding capacity (WHC) of breast muscle was significantly higher with 9 and 15 g/kg MOLP; whereas robusticity index of tibia bone significantly decreased with 12 and 15 g/kg MOLP inclusion compared to the control group. In conclusion, dietary supplementation of Moringa oleifera leaf powder (12g/kg) increased pH, water holding capacity, and muscle fibre diameter of breast muscle and also weight, ash percentage and density indices of tibia bone in broiler chickens.
In this feeding trial, a total of 500 Cobb-500 broiler (day-old) chickens were randomly assigned to a control dietary treatment (basal diet only) or supplemented with crushed seeds of coriander (Coriandrum sativum L.), black cumin (Bunium persicum (Boiss.) B. Fedtsch) and ajwain (Carum copticum L.) (at 10 mg/kg each) and exogenous protease (30,000 IU/kg), respectively, in order to assess the effect of the diets on nutrient digestibility, bone strength and gut morphology. The results indicated that the digestibility coefficients of crude protein, crude fat, nitrogen-free extract, calcium and phosphorous were significantly (p < 0.05) higher in protease-treated birds compared to the control. The tibia bone weight was improved (p = 0.03) in Carum copticum, Coriandrum sativum and protease-supplemented birds. Bone length increased (p < 0.05) in protease and Carum copticum fed broilers, while the robusticity index decreased (p < 0.05) in all treatments. Villus length and width decreased (p < 0.05) in Carum copticum and Bunium persicum fed broilers. From findings, it was demonstrated that exogenous protease shows comparatively better results in improving bone quality, ileal digestibility and villus morphology in broilers.
The current study investigated the potential of selenium nanoparticles (SeNPs) and mannan-oligosaccharide (MOS) supplementation in ameliorating high stocking density (HSD) stress in broilers. A total of 392 day-old male chicks were divided into seven groups with eight replicates (n = 7): NSD [basal diet (BD) + normal stocking density: 10 bird/m2], HSD [BD + high stocking density: 16 bird/m2], Se–HSD [BD + Selenium (Se) 0.15 mg/kg], MOS–HSD (BD + MOS 5 gm/kg), Se–MOS–HSD (BD + Se 0.15 mg/kg and MOS 5 gm/kg), SeNPs–HSD (BD + SeNPs 0.15 mg/kg) and SeNPs–MOS–HSD (BD + SeNPs 0.15 mg/kg and MOS-5 gm/kg). HSD stress decreased (p < 0.05) weekly body weight and body weight gain and increased (p < 0.05) FCR compared to the NSD group. Supplementation with SeNPs and the SeNPs–MOS combination improved (p < 0.05) the weekly body weight and FCR in HSD-stressed broilers during the 5th and 6th weeks. On day 21, HSD stress decreased (p < 0.05) duodenal villus height (VH) and villus surface area (VSA) and increased (p < 0.05) serum corticosterone and cholesterol compared to the NSD group. Supplementation with the SeNPs–MOS combination increased (p < 0.05) duodenal VH and VH:CD, and jejunal total goblet cell (TGC) density and decreased (p < 0.05) serum corticosterone and cholesterol and ileal intra-epithelial lymphocyte (IEL) density in HSD-stressed broilers. On day 42, HSD stress decreased (p < 0.05) duodenal and jejunal VH, VSA, VH:CD, PCNA positive cell density and TGC density, Ileal VSA and TGC density, and increased (p < 0.05) serum cholesterol and ileal IEL density compared to the NSD group. Supplementation with the SeNPs–MOS combination increased (p < 0.05) spleen and bursa absolute weights, duodenal VH, VSA, VH:CD, PCNA positive cell density and jejunal VH, VH:CD, and decreased (p < 0.05) serum cholesterol and ileal IEL density in HSD-stressed broilers. Our findings signify that HSD is stressful for broilers particularly during the finishing phase. Supplementation with the SeNPs–MOS combination mitigated HSD stress by partially improving the gut microarchitecture, gut barrier function and performance indicators.
In recent times, there has been a growing focus among researchers on memory-based control charts. The Exponentially Weighted Moving Average (EWMA) and Cumulative Sum (CUSUM) charts and the adaptive control charting approaches got the attention. Control charts are commonly employed to oversee processes, assuming the monitored variable follows a normal distribution. However, it's worth noting that this assumption does not hold true in many real-world situations. The use of the algebraic expression for normalization, which can be used for all kinds of skewed distributions with a closed-form distribution function, using the proposed continuous function to adapt a smoothing constant, motivates this study. In the present manuscript, we design an EWMA statistic-based adaptive control chart to monitor the irregular variations in the mean of two parametric Weibull distribution and use Hasting approximation for normalization. The adaptive control charts are used to update the smoothing constant according to the estimated shift. Here we use the proposed continuous function to adapt the smoothing constant. The average run length and standard deviation of run length are calculated under different parameter settings. The effectiveness of the proposed chart is argued in terms of ARLs over the considered EWMA chart through Monte-Carlo (MC) simulation method. The proposed chart is examined, followed by a real data set to demonstrate the design and application procedures.
In this study, we investigated broiler growth traits, intestinal health and immune aggregates in response to supplementation of Origanum vulgare and Cinnamomumverum, citric acid and malic acid in drinking water at varying levels and durations on broiler. We randomly allocated 140 day-old broilers into four (4) groups, with each group having seven replicates (n = 5). A basal diet and water were provided to all the groups ad libitum in accordance with standard farming practices. Keeping group I as the control, group II was supplemented with 1 mL/3.3 L of water for 1–4 days, 1 mL/4 L from 15–18 days and 1 mL/4 L water from 26–29 days. Group III and IV were supplemented with 1 mL/4 L of water and 1 mL/6 L of water for 35 days, respectively. After the completion of the trial (day 35), two broilers per replicate (14 birds per group) were slaughtered to sample the visceral organs. The results demonstrated that the feed conversion ratio (FCR) and body weight gain improved (p ≤ 0.05) during the fourth and fifth week of the trial in group III in comparison to the control group. Although the small intestine villus height and villus-height-to-crypt-depth ratio improved (p ≤ 0.05) in group III, the muscularis externa thickness of the ileum was highest (p ≤ 0.05) in the control group. Similarly, the lymphatic follicular and nodular area of the immune organs improved (p ≤ 0.05) in group III. In all segments of the small intestine (duodenal, jejunal and ileal), the number of acidic and total goblet cells was highest (p ≤ 0.05) in group II. In conclusion, dietary Origanum vulgare,Cinnamomumverum, citric acid and malic acid at the dose of 1 mL/4 L of drinking water (group III) was the most effective in improving the growth performance, gut development and associated immune components in broilers.
2 September 2024 in Polish Journal of Environmental Studies
The black soldier fly larvae Hermetia illucens L. (Diptera: Stratiomyidae) are an ideal insect to produce compost and animal feed. The goal of this study was to use Kitchen waste 50 grams, Cow dung 50 grams, and Rotten fruits 50 grams attractants to gather wild H. illucens and their egg clutches from their natural microhabitat in dumping sites. The fly was trapped in a 1×1×1 feet trap net. The results indicate that humidity 42.5±50.5%, F = 1.754, P = .233 and temperature 27.975±37.05ºC, F = 1.126, P = .353) during the capture of H. illucens and egg clutch in a natural environment. The life cycle has included seven instars, a duration of 39 days, and the longest time period of the instar 6th recorded. We have optimized the temperature range to 24-30ºC and humidity to 60-95% in indoor rearing of the H. illucens. We recorded the varying ingredient contents level, highest Moisture at 38.5%, Crude protein at 55.13%, Crude fiber at 28.18%, Crude fat at 28.18%, and Total Ash at 15.5%. The H. illucens indoor farming is recommended for quality of protein production under a controlled environment which will boost the Pakistani economy and reduce threats to aquatic fauna.