Transfer of β-hydroxy-β-methylbutyrate from sows to their offspring and its impact on muscle fiber type transformation and performance in pigs

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• 作者：Haifeng Wan ; Jiatao Zhu ; Caimei Wu ; Pan Zhou&#8230
• 关键词：β ; hydroxy ; β ; methylbutyrate ; Lactating sow ; Muscle fiber ; Offspring ; Performance
• 刊名：Journal of Animal Science and Biotechnology
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：8
• 期：1
• 全文大小：724KB
• 刊物主题：Agriculture; Biotechnology; Food Science; Animal Genetics and Genomics; Animal Physiology;
• 出版者：BioMed Central
• ISSN：2049-1891
• 卷排序：8

文摘

BackgroundPrevious studies suggested that supplementation of lactating sows with β-hydroxy-β-methylbutyrate (HMB) could improve the performance of weaning pigs, but there were little information in the muscle fiber type transformation of the offspring and the subsequent performance in pigs from weaning through finishing in response to maternal HMB consumption. The purpose of this study was to determine the effect of supplementing lactating sows with HMB on skeletal muscle fiber type transformation and growth of the offspring during d 28 and 180 after birth. A total of 20 sows according to their body weight were divided into the control (CON, n = 10) or HMB groups (HMB, n = 10). Sows in the HMB group were supplemented with β-hydroxy-β-methylbutyrate calcium (HMB-Ca) 2 g /kg feed during d 1 to 27 of lactation. After weaning, 48 mixed sex piglets were blocked by sow treatment and fed standard diets for post-weaning, growing, finishing periods. Growth performance was recorded during d 28 to 180 after birth. Pigs were slaughtered on d 28 (n = 6/treatment) and 180 (n = 6/treatment) postnatal, and the longissimus dorsi (LD) was collected, respectively.