Effects of Maternal Undernutrition during Mid-Gestation on the Yield, Quality and Composition of Kid Meat Under an Extensive Management System
Effects of Maternal Undernutrition during Mid-Gestation on the Yield, Quality and Composition of Kid Meat Under an Extensive Management System
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粗放管理下母体妊娠中期营养不良对羊羔肉产量、品质和成分的影响
DOI：
10.3390/ani9040173
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发表时间：
2019-04
期刊：
影响因子：
3
通讯作者：
Tan Zhiliang
中科院分区：
文献类型：
--
作者：
Zhou Xiaoling;Yan Qiongxian;Yang Hong;Ren Ao;Kong Zhiwei;Tang Shaoxun;Han Xuefeng;He Zhixiong;Bamikole Musibau Adungbe;Tan Zhiliang
妊娠期营养状况影响子代产肉量。在反刍动物中，通常强调妊娠第一和第三阶段的营养供应，而对第二阶段的营养水平关注较少，特别是在粗放式饲养制度下。本研究在一个广泛的系统下，研究了孕中期40%的母体营养不良对羔羊肉的产量、品质和组成的影响。仔猪的产肉量下降，而肉质和化学成分，包括氨基酸和脂肪酸组成，没有受到影响。在粗放型畜牧制度下的肉类生产中，应强调反刍动物妊娠中期营养供应的重要性。摘要在粗放式饲养的情况下，往往忽视孕中期的营养状况。本研究的目的是在一个广泛的系统下，研究孕中期母亲营养不良对儿童肉类生产的影响。将27只妊娠(45±3)d的山羊随机分为非限制组(100%的营养需要量)和限制组(45d~100d的60%营养需要量，然后再饲喂至100%)。根据出生类型和存活率，选择符合条件的仔猪16头(每个处理8头)，并在出生后90d收获肉产量、品质和组成。母亲营养不良降低了儿童的体重和体型、平均日增重和热屠体重量(p<；0.05)。限食组儿童死后45min的肉质增加(p=0.029)。除了酪氨酸浓度增加(p=0.046.0 5)外，限制组儿童的氨基酸和脂肪酸图谱没有受到影响(p>；0.05)。总体而言，孕中期母体营养不良降低了羔羊肉的产量，但并未显著改变其品质和组成。这些结果强调了在大规模饲养条件下，妊娠中期的营养状况在小型反刍动物肉类生产中的重要性。
Simple Summary Nutrition status during pregnancy affects the meat production of offspring. In ruminants, the nutrient supply during the first and third periods of gestation is generally stressed, whereas the nutrition level during the second period of gestation is given less attention, in particular under the extensive husbandry system. This study focused on the effects of a 40% maternal undernutrition during mid-gestation, on the yield, quality, and composition of kid meat under an extensive system. The meat yield of the kids was decreased, while the meat quality and chemical composition, including the amino acid and fatty acid profiles, were unaffected. In meat production under an extensive husbandry system, the importance of the nutrient supply during mid-gestation in ruminants should be stressed. 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.
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影响因子：
1.8
作者：
B. McGregor
通讯作者：
B. McGregor
影响因子：
7.1
作者：
Calnan, H.;Jacob, R. H.;Gardner, G. E.
通讯作者：
Gardner, G. E.
DOI：
10.1095/biolreprod.104.034561
发表时间：
2004-12
期刊：
--
影响因子：
--
作者：
Mei J. Zhu;S. Ford;P. Nathanielsz;M. Du
通讯作者：
Mei J. Zhu;S. Ford;P. Nathanielsz;M. Du
影响因子：
3.3
作者：
Meyer, A. M.;Reed, J. J.;Caton, J. S.
通讯作者：
Caton, J. S.
DOI：
10.1017/s002185961400077x
发表时间：
2014-08
期刊：
The Journal of Agricultural Science
影响因子：
--
作者：
John Rooke;Gareth Arnott;Cathy M. Dwyer;K. M. Rutherford
通讯作者：
John Rooke;Gareth Arnott;Cathy M. Dwyer;K. M. Rutherford