Comparison of Growth Hormone Pulsatile Secretion and Serum Metabolites in Growing Taihu and Landrace Pigs

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.

• Periodical: Advanced Materials Research (Volumes 343-344)
• Pages: 417-422
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.343-344.417
• Online since: September 2011
• Authors: Guo Wang Li, Zhi Guo Miao, Shi Zhu Wang, Chang Zhong Liu, Hai Tang Zhang
• Keywords: Difference, Gilt, Growth Hormone, Pulsatile Secretion, Serum Metabolite

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