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Effects of Maternal Undernutrition during Mid-Gestation on the Yield, Quality and Composition of Kid Meat Under an Extensive Management System

Authors :
Xiaoling Zhou
Qiongxian Yan
Hong Yang
Ao Ren
Zhiwei Kong
Shaoxun Tang
Xuefeng Han
Zhixiong He
Musibau Adungbe Bamikole
Zhiliang Tan
Source :
Animals, Vol 9, Iss 4, p 173 (2019)
Publication Year :
2019
Publisher :
MDPI AG, 2019.

Abstract

Nutritional status during mid-gestation is often ignored under extensive husbandry. This study aimed to examine the effect of maternal undernutrition during mid-gestation on kid meat production under an extensive system. Twenty-seven goats (45 ± 3 d of gestation) were randomly assigned to an unrestricted group (100% of nutrient requirements), or a restricted group (60% of nutrient requirements from 45 to 100 d of gestation, and then re-alimented to 100%). Among the offspring, 16 eligible kids (eight per treatment) were selected, based on birth type and survival, and were harvested to evaluate the meat yield, quality, and composition at 90 d after birth. Maternal undernutrition reduced the body weight and size, average daily gain and hot carcass weight of the kids (p < 0.05). The lightness of the meat at 45 min postmortem was increased (p = 0.029) in the restricted kids. Apart from an increase in tyrosine concentration (p = 0.046), the proximate composition and the amino acid and fatty acid profiles were unaffected in the restricted kids (p > 0.05). Overall, maternal undernutrition during mid-gestation decreased the yield of kid meat, but did not significantly modify the quality and composition. These results highlight the importance of nutrient status during mid-gestation in the meat production of small ruminants under an extensive regime.

Details

Language :
English
ISSN :
20762615
Volume :
9
Issue :
4
Database :
Directory of Open Access Journals
Journal :
Animals
Publication Type :
Academic Journal
Accession number :
edsdoj.b1186caae2481181a856423797317b
Document Type :
article
Full Text :
https://doi.org/10.3390/ani9040173