译 名：
Effect of N-methyl-aspartate and Betaine on Growth Performance and the Relative Relationship Between the Growth Hormone and Growth Performance in Finishing Swine
作 者：
XU Zi-rong ,FENG Jie, ZOU Xiao-ting (Key Laboratory for Molecular Animal Nutrition of Ministry of Education, Zhejiang University, Hangzhou 310029)
关键词：
N-methyl-aspartate; Betaine; Growth hormone; Growth; Carcass; Swine
摘 要：
Nighty finishing swine were selected to study the effect of N-methyl-aspartate and betaine on the internal growth hormone level in serum and the correlation between the growth hormone level and growth performance or carcass characteristic of finishing swine. The results of study showed that the two matters could increase the swine growth and improve the carcass characteristics significantly. The correlation analyses indicated that growth hormone and IGF-I have the positive correlation with the growth speed, carcass lean ratio, longissimus dorsi area, serum free fatty acid and lipase activity, have the negative correlation with the feed gain ratio, carcass fat ratio, urine nitrogen, but the growth hormone is more effective than IGF-I(P<0. 01). The results implicated that both the two matters may act through growth hormone axis(growth hormone-JGF-J) to regulate the swine growth.
