Developmental Programming and Growth of Livestock Tissues for Meat Production
Developmental Programming and Growth of Livestock Tissues for Meat Production
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DOI：
10.1016/j.cvfa.2019.02.008
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发表时间：
2019-07-01
影响因子：
4.1
通讯作者：
Bell, Alan W.
中科院分区：
文献类型：
--
作者：
Greenwood, Paul L.;Bell, Alan W.
母体对胎儿发育的调节对胴体组织的生长和发育有影响。严重限制胎儿生长会降低出生后的生长能力，导致年龄较小的动物需要更长的时间才能达到市场体重，但对饲养场效率或胴体和肉质几乎没有影响。特定的营养补充，特别是在怀孕后期，可能会限制胎儿生长迟缓，提高出生后的生长能力和胴体特征，并可能改善肌内脂肪的发育。对发育过程及其调控的理解不断提高，将提高未来通过发展规划提高生长、效率、屠体和肉质的能力。
Maternal regulation of fetal development has consequences for growth and development of carcass tissues. Severely restricted fetal growth can reduce postnatal growth capacity, resulting in smaller-for-age animals that take longer to reach market weights but has little effect on feedlot efficiency or carcass and meat quality. Specific nutritional supplementation, particularly during later pregnancy, may limit fetal growth retardation and enhance postnatal growth capacity and carcass characteristics, and may improve development of intramuscular fat. Continued improvements in understanding developmental processes and their regulation will increase future capacity to improve growth, efficiency, carcasses, and meat quality through developmental programming.