This page has only limited features, please log in for full access.

Unclaimed
Yang-Kwang Fan
Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 30 August 2021 in Animals
Reads 0
Downloads 0

A 3-week feeding trial in a 3 × 2 × 2 factorial design was conducted with three concentrations (0, 0.5, and 5 mg/kg) of T-2 toxin (T-2) and two levels (0% and 0.5%) of green tea powder (GTP) supplements used in the diets of female brown Tsaiya ducklings (BTDs) and Kaiya ducklings (KDs), respectively. Breed had a significant effect on the growth performances and the relative weights of organs and carcass. In general, the growth performances of KDs were better than BTDs. The relative weights of organs and carcass of BTDs were typically heavier than those of KDs; however, the breast of KDs was heavier than those of BTDs. Both ducklings received 5 mg/kg of T-2 blended in the diet showed lower feed intake and body weight gain (BWG) in the second and the third week. The diet containing 5 mg/kg of T-2 and 0.5% GTP improved the BWG compared to those fed the diet supplemented with 5 mg/kg of T-2 without GTP in BTDs. Ducklings fed the diet containing 5 mg/kg of T-2 induced hypocalcemia and hypomagnesemia, as well as decreased concentrations of creatine phosphokinase and alkaline phosphatase. The concentrations of blood urea nitrogen (BUN) and glutamate oxaloacetate transaminase (GOT) were increased in KDs and BTDs fed the diet containing 5 mg/kg of T-2 without GTP, respectively. However, duckling diets containing 5 mg/kg of T-2 with 0.5% GTP lowered concentrations of BUN and GOT in the blood plasma of KDs and BTDs, respectively. The diet containing 5 mg/kg of T-2 increased the relative kidney weight but decreased the relative breast weight of ducklings. Enlarged gizzards and reduced relative leg weights were observed in BTDs fed the diets containing 5 mg/kg of T-2. In summary, BTDs are more sensitive than KDs in responding to T-2 toxicity and GTP detoxification. Green tea powder has detoxification ability and could potentially mitigate T-2 toxicity on BWG, BUN, and GOT in ducklings.

ACS Style

Ko-Hua Tso; Chompunut Lumsangkul; Min-Chien Cheng; Jyh-Cherng Ju; Yang-Kwang Fan; Hsin-I Chiang. Differential Effects of Green Tea Powders on the Protection of Brown Tsaiya and Kaiya Ducklings against Trichothecene T-2 Toxin Toxicity. Animals 2021, 11, 2541 .

AMA Style

Ko-Hua Tso, Chompunut Lumsangkul, Min-Chien Cheng, Jyh-Cherng Ju, Yang-Kwang Fan, Hsin-I Chiang. Differential Effects of Green Tea Powders on the Protection of Brown Tsaiya and Kaiya Ducklings against Trichothecene T-2 Toxin Toxicity. Animals. 2021; 11 (9):2541.

Chicago/Turabian Style

Ko-Hua Tso; Chompunut Lumsangkul; Min-Chien Cheng; Jyh-Cherng Ju; Yang-Kwang Fan; Hsin-I Chiang. 2021. "Differential Effects of Green Tea Powders on the Protection of Brown Tsaiya and Kaiya Ducklings against Trichothecene T-2 Toxin Toxicity." Animals 11, no. 9: 2541.

Journal article
Published: 11 April 2020 in Animals
Reads 0
Downloads 0

This study aimed to investigate ultrastructural changes of growing porcine oocytes and in vitro maturated oocytes. Light microscopy was used to characterize and localize the primordial, primary, secondary, and tertiary follicles. During oocyte growth and maturation, the morphology of mitochondria was roundish or ovoid in shape depending on the differentiation state, whereas their mean diameters oscillated between 0.5 and 0.7 µm, respectively, from primary and secondary follicles. Hooded mitochondria were found in the growing oocytes of the tertiary follicles. In addition to the pleomorphism of mitochondria, changes in the appearance of lipid droplets were also observed, along with the alignment of a single layer of cortical granules beneath the oolemma. In conclusion, our study is apparently the first report to portray morphological alterations of mitochondria that possess the hooded structure during the growth phase of porcine oocytes. The spatiotemporal and intrinsic changes during oogenesis/folliculogenesis are phenomena at the ultrastructural or subcellular level of porcine oocytes, highlighting an in-depth understanding of oocyte biology and impetus for future studies on practical mitochondrion replacement therapies for oocytes.

ACS Style

Michel Kere; Pan-Chen Liu; Yuh-Kun Chen; Pei-Chi Chao; Li-Kuang Tsai; Ting-Yu Yeh; Chawalit Siriboon; Payungsuk Intawicha; Neng-Wen Lo; Hsing-I Chiang; Yang-Kwang Fan; Jyh-Cherng Ju. Ultrastructural Characterization of Porcine Growing and In Vitro Matured Oocytes. Animals 2020, 10, 664 .

AMA Style

Michel Kere, Pan-Chen Liu, Yuh-Kun Chen, Pei-Chi Chao, Li-Kuang Tsai, Ting-Yu Yeh, Chawalit Siriboon, Payungsuk Intawicha, Neng-Wen Lo, Hsing-I Chiang, Yang-Kwang Fan, Jyh-Cherng Ju. Ultrastructural Characterization of Porcine Growing and In Vitro Matured Oocytes. Animals. 2020; 10 (4):664.

Chicago/Turabian Style

Michel Kere; Pan-Chen Liu; Yuh-Kun Chen; Pei-Chi Chao; Li-Kuang Tsai; Ting-Yu Yeh; Chawalit Siriboon; Payungsuk Intawicha; Neng-Wen Lo; Hsing-I Chiang; Yang-Kwang Fan; Jyh-Cherng Ju. 2020. "Ultrastructural Characterization of Porcine Growing and In Vitro Matured Oocytes." Animals 10, no. 4: 664.

Journal article
Published: 03 September 2015 in Asian-Australasian Journal of Animal Sciences
Reads 0
Downloads 0

The present study investigated stocking density and genetic lines, factors that may alter the severity and incidence of angel wing (AW), in White Roman geese. Geese (n = 384) from two genetically selected lines (normal- winged line, NL, and angel-winged line, AL, respectively) and one commercial line (CL) were raised in four pens. Following common commercial practice, low-stocking-density (LD), medium-stocking-density, and high-stocking-density treatments were respectively administered to 24, 32, and 40 geese per pen at 0 to 3 weeks (1.92 m2/pen) and 4 to 6 weeks (13.2 m2/pen) of age and to 24, 30, and 36 geese at 7 to 14 weeks (20.0 m2/pen) of age. The results revealed that stocking density mainly affected body weight gain in geese younger than 4 weeks, and that geese subjected to LD had a high body weight at 2 weeks of age. However, the effect of stocking density on the severity score of AW (SSAW) and incidence of AW (IAW) did not differ significantly among the treatments. Differences were observed among the genetic stocks; that is, SSAW and IAW were significantly higher in AL than in NL and CL. Genetic selection generally aggravates AW, complicating its elimination. To effectively reduce IAW, stocking density, a suspected causal factor, should be lower than that presently applied commercially.

ACS Style

Min-Jung Lin; Shen-Chang Chang; Tsung-Yi Lin; Yu-Shin Cheng; Yen-Pai Lee; Yang-Kwang Fan. Factors Affecting the Incidence of Angel Wing in White Roman Geese: Stocking Density and Genetic Selection. Asian-Australasian Journal of Animal Sciences 2015, 29, 901 -907.

AMA Style

Min-Jung Lin, Shen-Chang Chang, Tsung-Yi Lin, Yu-Shin Cheng, Yen-Pai Lee, Yang-Kwang Fan. Factors Affecting the Incidence of Angel Wing in White Roman Geese: Stocking Density and Genetic Selection. Asian-Australasian Journal of Animal Sciences. 2015; 29 (6):901-907.

Chicago/Turabian Style

Min-Jung Lin; Shen-Chang Chang; Tsung-Yi Lin; Yu-Shin Cheng; Yen-Pai Lee; Yang-Kwang Fan. 2015. "Factors Affecting the Incidence of Angel Wing in White Roman Geese: Stocking Density and Genetic Selection." Asian-Australasian Journal of Animal Sciences 29, no. 6: 901-907.

Journal article
Published: 01 February 2006 in Asian-Australasian Journal of Animal Sciences
Reads 0
Downloads 0
ACS Style

Y.K. Fan; W.J. Croom; Linda Daniel; B.W. McBride; M. Koci; G.B. Havenstein; E.J. Eisen. Effect of Genotype on Whole-body and Intestinal Metabolic Response to Monensin in Mice. Asian-Australasian Journal of Animal Sciences 2006, 19, 554 -562.

AMA Style

Y.K. Fan, W.J. Croom, Linda Daniel, B.W. McBride, M. Koci, G.B. Havenstein, E.J. Eisen. Effect of Genotype on Whole-body and Intestinal Metabolic Response to Monensin in Mice. Asian-Australasian Journal of Animal Sciences. 2006; 19 (4):554-562.

Chicago/Turabian Style

Y.K. Fan; W.J. Croom; Linda Daniel; B.W. McBride; M. Koci; G.B. Havenstein; E.J. Eisen. 2006. "Effect of Genotype on Whole-body and Intestinal Metabolic Response to Monensin in Mice." Asian-Australasian Journal of Animal Sciences 19, no. 4: 554-562.

Pharmacology and toxicology
Published: 01 August 2003 in Journal of Animal Science
Reads 0
Downloads 0

Two experiments, Trial 1 (in vitro) and Trial 2 (in vivo), were conducted to examine the effects of ionophores, monensin, laidlomycin, and laidlomycin propionate on whole-animal O2 consumption, organ weights, jejunal glucose absorption, and O2 utilization, as well as growth, feed and water consumption, and feed efficiency. In Trial 1, 30 male Swiss-Webster mice, 8 wk old, were used to measure the in vitro effects of each of the ionophores at concentrations of 1.62 or 16.2 mM. Six combinations of three ionophores at two concentrations resulted in a total of eight treatments. All eight treatments were exposed to jejunal rings from a single mouse for a total of 30 observations per treatment. Jejunal rings were exposed to each ionophore treatment for 15 min. Laidlomycin propionate (16.2 mM) decreased (P < 0.02) glucose absorption, as estimated by H3-3-O-methyl glucose uptake compared with all other treatments, whereas laidlomycin propionate (1.62 mM) increased (P = 0.032) jejunal DM content compared with 16.2 mM laidlomycin propionate. In Trial 2, 40 5-wk-old mice were allotted into four treatments--control and 16.2 mM each of monensin, laidlomycin, and laidlomycin propionate--for a total of 10 observations per treatment. Ionophores were administered via the drinking water for 14 d. No ionophore treatment had any effect on whole-mouse O2 consumption. Monensin increased (P = 0.004) stomach size and decreased (P = 0.049) the efficiency of BW gain compared with controls. Laidlomycin propionate decreased (P = 0.032) the percentage of whole jejunum oxygen consumption due to oubain-sensitive respiration compared with control. The efficiency of intestinal glucose absorption was not changed due to treatment in either trial. Under the conditions of these studies, monensin, laidlomycin, and laidlomycin propionate had minimal and inconsistent effects on jejunal function and energy utilization in mice. This investigation suggests that changes in the energetic requirements of animals treated with ionophores are not an issue in animal production.

ACS Style

Y. K. Fan; J. Croom; E. J. Eisen; H. R. Spires; L. R. Daniel. Ionophores have limited effects on jejunal glucose absorption and energy metabolism in mice. Journal of Animal Science 2003, 81, 2072 -2079.

AMA Style

Y. K. Fan, J. Croom, E. J. Eisen, H. R. Spires, L. R. Daniel. Ionophores have limited effects on jejunal glucose absorption and energy metabolism in mice. Journal of Animal Science. 2003; 81 (8):2072-2079.

Chicago/Turabian Style

Y. K. Fan; J. Croom; E. J. Eisen; H. R. Spires; L. R. Daniel. 2003. "Ionophores have limited effects on jejunal glucose absorption and energy metabolism in mice." Journal of Animal Science 81, no. 8: 2072-2079.

Journal article
Published: 01 November 1996 in The Journal of Nutrition
Reads 0
Downloads 0
ACS Style

Y K Fan; W J Croom; L R Daniel; A R Bird; B L Black; E J Eisen; B W McBride. Selection for body composition does not affect energetic efficiency of jejunal glucose uptake in mice. The Journal of Nutrition 1996, 126, 1 .

AMA Style

Y K Fan, W J Croom, L R Daniel, A R Bird, B L Black, E J Eisen, B W McBride. Selection for body composition does not affect energetic efficiency of jejunal glucose uptake in mice. The Journal of Nutrition. 1996; 126 (11):1.

Chicago/Turabian Style

Y K Fan; W J Croom; L R Daniel; A R Bird; B L Black; E J Eisen; B W McBride. 1996. "Selection for body composition does not affect energetic efficiency of jejunal glucose uptake in mice." The Journal of Nutrition 126, no. 11: 1.

Journal article
Published: 01 November 1996 in The Journal of Nutrition
Reads 0
Downloads 0
ACS Style

Y K Fan; W J Croom; E J Eisen; L R Daniel; B L Black; B W McBride. Selection for growth does not affect apparent energetic efficiency of jejunal glucose uptake in mice. The Journal of Nutrition 1996, 126, 1 .

AMA Style

Y K Fan, W J Croom, E J Eisen, L R Daniel, B L Black, B W McBride. Selection for growth does not affect apparent energetic efficiency of jejunal glucose uptake in mice. The Journal of Nutrition. 1996; 126 (11):1.

Chicago/Turabian Style

Y K Fan; W J Croom; E J Eisen; L R Daniel; B L Black; B W McBride. 1996. "Selection for growth does not affect apparent energetic efficiency of jejunal glucose uptake in mice." The Journal of Nutrition 126, no. 11: 1.

Journal article
Published: 01 September 1996 in Canadian Journal of Animal Science
Reads 0
Downloads 0

Dorset crossbred ewes were used to determine the effect of recombinant methionyl bovine somatotropin (bST) on small intestinal nutrient absorption. Ewes were kept indoors in individual pens and allowed free access to a concentrate diet (18% CP). (150 μg kg−1) or saline were subcutaneously injected once daily for 10 d. An in vitro assay system was used to estimate the rate of accumulation of 3H-3-O-methylglucose and 14C-proline by small intestinal segments. Feed intake and liveweight gain were similar in ewes administered bST or saline. At the end of the treatment period, plasma ST, IGF-I and glucose concentrations were significantly higher in ewes treated with bST. In the duodenum, active and total glucose absorption were greater (P < 0.05) in bST treated ewes. There was also a tendency for bST treatment to increase duodenal total proline absorption (P < 0.10). Glucose and proline absorption in the jejunum and ileum were not significantly affected by bST. Jejunal ouabain-sensitive and ouabain-insensitive oxygen consumption was similar in ewes administered saline or bST. Water, DNA and protein content of small intestinal mucosa were unaffected by bST administration. These results indicate that bST upregulates glucose transport in the duodenum of sheep. Key words: Intestine, nutrient absorption, somatotropin, IGF-I, sheep

ACS Style

A. R. Bird; W. J. Croom Jr.; Y. K. Fan; L R. Daniel; B. W. McBride; I. L. Taylor. Recombinant bovine somatotropin increases nutrient absorption by the proximal small intestine in sheep. Canadian Journal of Animal Science 1996, 76, 343 -350.

AMA Style

A. R. Bird, W. J. Croom Jr., Y. K. Fan, L R. Daniel, B. W. McBride, I. L. Taylor. Recombinant bovine somatotropin increases nutrient absorption by the proximal small intestine in sheep. Canadian Journal of Animal Science. 1996; 76 (3):343-350.

Chicago/Turabian Style

A. R. Bird; W. J. Croom Jr.; Y. K. Fan; L R. Daniel; B. W. McBride; I. L. Taylor. 1996. "Recombinant bovine somatotropin increases nutrient absorption by the proximal small intestine in sheep." Canadian Journal of Animal Science 76, no. 3: 343-350.