Impacts Of Maternal Nutrition On Fetal Development and Offspring Growth Performance and Beef Quality
Enhancing lean growth will improve the efficiency of beef production, while marbling is important for the eating quality of beef.An increasing body of evidence shows that the level of maternal nutrition alters fetal skeletal muscle development which affects the lean/fat ratio and marbling in progeny.Fetal skeletal muscle development mainly involves myogenesis (muscle cell development), but also involves adipogenesis (adipocyte development) and fibrogenesis (fibroblast development).These tissues in fetal muscle are mainly derived from mesenchymai progenitor cells.Shifting the commitment of progenitor cells from myogenesis to adipogenesis increases intramuscular fat (marbling)improving the quality grade of meats.Lack of nutrients during early to mid-gestation reduces the formation of secondary fetal muscle fibers in ruminant animals.Nutrient deficiency during the mid to late gestation decreases the number of intramuscular adipocytes and muscle fiber sizes.Knowledge of this regulatory mechanism will facilitate the development of strategies to enhance muscle growth and marbling in offspring especially in the setting of nutrient deficiency.
adipogenesis cattle fetus marbling myogenesis progenitor cells skeletal muscle
Min Du Shengjuan Wei MeiJun Zhu Michael V Dodson Linsen Zan
Department of Animal Sciences, Washington State University, Pullman 99164 Department of Animal Sciences, Washington State University, Pullman 99164;College of Animal Science School of Food Science, Washington State University, Pullman 99164 College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P R
国内会议
第二届中国肉牛选育改良与产业发展国际研讨会暨中国畜牧兽医学会养牛分会八届二次学术研讨会
陕西杨凌
英文
51-59
2013-10-22（万方平台首次上网日期，不代表论文的发表时间）