fundamental part of lipid digestion by generaion of a lipid- water interface (Armand et al., 1996). Bile acids are also essential for emulsification of dietary lipids, ...
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Asian-Aust. J. Anim. Sci. Vol. 20, No. 8 : 1222 - 1228 August 2007 www.ajas.info
Characterization of Fatty Acid Digestion of Beijing Fatty and Arbor Acres Chickens J. M. Yuan*, Y. M. Guo, Y. Yang and ZH. Wang State Key Laboratory of Animal Nutrition, College of Animal Science and Technology China Agricultural University, Beijing 100094, China ABSTRACT : The aim of this experiment was to compare the characterization of fatty acid digestion of Beijing Fatty (BF) and Arbor Acres (AA) chickens. One-day-old male AA and BF chickens were raised in the same house, and fed with the same diet. We first evaluated utilization of dietary fatty acids in chickens by the total collection procedure, and chickens were then killed to compare the abundance of intestinal mRNA expression of liver-fatty acid binding protein (L-FABP) and intestinal-fatty acid binding protein (IFABP) by Real-time PCR, and also the pH of intestinal mucosa at 3 and 6 weeks of age. Another group of chickens were sampled at 6 weeks of age to compare the total bile acid concentration in serum, and lipase activity in contents of the small intestine. Results showed that compared to AA chickens, BF chickens had higher lipase activity in the content of the small intestine (p
