Affiliation:
1. Henan Institute of Science and Technology
Abstract
In this paper we compared growth performance, growth hormone (GH) pulsatile secretion and serum metabolites in growing Taihu and Landrace gilts at the same age. The results showed that compared with Landrace gilts, Taihu gilts decreased by 45.48% (P<0.05), 25.25% (P<0.05) in average daily gain and carcass muscle percentage, and increased by 52.44% (P<0.05), 69.50% (P<0.05) in feed/gain ratio and carcass fat percentage, respectively. While, average daily feed intake was not affected by breeds. Serum basal GH level, mean GH level and GH pulse amplitude were decreased by 26.67% (P<0.05), 20.00% (P<0.05) and 18.81% (P<0.05), respectively, but GH pulse frequency and pulse duration remained unchanged (P>0.05). Serum urea nitrogen concentration in Taihu gilts was 32.04% (P<0.05) higher, whereas, total protein level was 17.73% (P<0.05) lower than that of Landrace gilts.
Publisher
Trans Tech Publications, Ltd.
Reference27 articles.
1. J.A. Sterle, T.C. Cantley, W.R. Lamberson, M.C. Lucy, D.E. Gerrard, R.L. Matteri and B.N. Day, Effects of recombinant porcine somatotropin on placental size, fetal growth, and IGF-I and IGF-II concentrations in pigs,. J Anim Sci, 1995, 73: 2980-2985.
2. B. Angelin and M. Rudling, Growth hormone and hepatic lipoprotein metabolism,. Curr Opinion Lipidol, 1994, 5: 160-165.
3. J. Oscarsson, M. Ottosson and S. Edèn, Effects of growth hormone on lipoprotein lipase and hepatic lipase,. J Endocrinol Invest, 1999, 22: 2-9.
4. L.J. Machlin, The effect of porcine growth hormone on growth and carcass composition of the pig,. J Anim Sci, 1972, 35: 794-800.
5. Z.R. Xu, Modenrn Nutrition of Swine,. Hangzhou, China, Zhejiang University Press, 1994, pp.57-72. (I n Chinese).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献