M. Duplessis, Christiane L. Girard, Doris Pellerin, L. Fadul-Pacheco, R. Cue
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引用次数: 0
摘要
:人类每天所需的维生素 B 12 (VB 12) 自然可以通过食用动物产品,特别是反刍动物的产品来满足,因为反刍动物的瘤胃中含有细菌。事实上,只有细菌才能合成这种维生素。因此,牛奶是 VB 12 的最佳来源。这项横断面研究采用综合方法,旨在揭示造成奶牛之间牛奶 B 12 浓度差异巨大的各种因素,如遗传变异、饮食和奶牛特征以及牛奶产量。研究人员从 3,533 头加拿大荷斯坦奶牛(1,239 头头等奶牛、932 头中等奶牛、2,533 头中等奶牛)中收集了连续两次挤奶的牛奶样本。
A comprehensive integration of factors affecting vitamin B12 concentration in milk of Holstein cows: genetic variability, milk productivity, animal characteristics, and feeding management
: Daily vitamin B 12 (VB 12 ) requirements of humans can naturally be fulfilled by animal product consumption, especially products from ruminants because of bacteria dwelling in their rumen. Indeed, only bacteria can synthesize this vitamin. Milk is hence an excellent source of VB 12 . This cross-sectional study was undertaken to unravel factors, such as genetic variation, diet and cow characteristics, and milk production, explaining the large variation in milk B 12 concentration among cows by using an integrative approach. Milk samples from 2 consecutive milkings were collected from 3,533 Canadian Holstein cows (1,239 first, 932 s