PHYSIOLOGIC AND MOLECULAR IMPLICATIONS OF AMINO ACID BALANCING DURING THE PERIPARTURIENT PERIOD IN DAIRY COWS
Immunonutrition: a future frontier Perhaps because of a lack of formal training outside classical concepts in nutrition, ruminant nutritionists primarily focus on meeting production requirements of dairy cows, without truly dissecting what components of maintenance requirement might affect performance.There is substantial evidence indicating that the immune system is intimately involved with other mechanisms that allow cows to adjust quickly to the onset of lactation without suffering chronic disorders.In fact, cows that lag behind the rest of the herd in terms of production outcomes (including fertility) often display a greater inflammatory status and compromised liver function (Bionaz et al., 2007, Bertoni et al., 2008, Trevisi et al., 2012).The lower dry matter intake (DMI) of the health-impaired animals (Trevisi et al., 2012) is not surprising because inflammatory molecules often have anorexogenic effects (Plata-Salaman, 1998, 2001 Wong and Pinkney,2004).Because it is now generally-agreed that the postpartum negative energy balance is mainly caused by the reduction in DMI, rather than the increase demand of the mammary gland (Grummer et al., 2010),health and immunity has to be a focus of nutritionists aiming to improve the adaptation of the cow to lactation (LeBlanc, 2010).
J.J.Loor Z.Zhou M.Vailati-Riboni
Department of Animal Sciences University of Illinois at Urbana-Champaign
国际会议
The 5h International Symposium on Dairy Cow Nutrition and Milk Quality(第五届“奶牛营养与牛奶质量国际研讨会)
北京
英文
76-86
2017-05-05（万方平台首次上网日期，不代表论文的发表时间）