Dietary molasses enhances ruminal biohydrogenation and partially alleviates diet- induced milk fat depression
نویسندگان
چکیده
منابع مشابه
Recent Advances in Milk Fat Depression: 1. Time Course of Milk Fat Depression and 2. Adipose Tissue Lipogenesis during Milk Fat Depression
Mammalian milk fat concentration and composition are variable and responsive to nutritional factors. First described over one and a half centuries ago, diet-induced milk fat depression (MFD) is characterized by a decrease in milk fat yield of up to 50% with no change in milk yield or yield of other milk components. MFD is classically observed in ruminants fed highly fermentable diets or diets t...
متن کاملDiet, rumen biohydrogenation and nutritional quality of cow and goat milk fat
The potential to modify the milk fatty acid (FA) composition by changing the cow or goat diets is reviewed. Ruminal biohydrogenation (RBH), combined with mammary lipogenic and D-9 desaturation pathways, considerably modifies the profile of dietary FA and thus milk composition. The pasture has major effects by decreasing saturated FA and increasing FA considered as favorable for human health (c9...
متن کاملEffects of induced subacute ruminal acidosis on milk fat content and milk fatty acid profile.
Two lactating dairy cows fitted with a rumen cannula received successively diets containing 0%, 20%, 34% and again 0% of wheat on a dry matter basis. After 5, 10 and 11 days, ruminal pH was measured between 8:00 and 16:00 hours, and milk was analysed for fat content and fatty acid profile. Diets with 20% and 34% wheat induced a marginal and a severe subacute ruminal acidosis respectively. After...
متن کاملManaging Milk Fat Depression
Milk fat concentration is variable within and between farms and is modified by genetics, season of the year, and physiological state, but is especially responsive to diet. Synthesis of milk fat is an energy demanding process, but also represents a significant portion of the economic and nutritional value of dairy products. First described over one and a half centuries ago, diet-induced milk fat...
متن کاملRapid changes in key ruminal microbial populations during the induction of and recovery from diet-induced milk fat depression in dairy cows.
The ruminant provides a powerful model for understanding the temporal dynamics of gastrointestinal microbial communities. Diet-induced milk fat depression (MFD) in the dairy cow is caused by rumen-derived bioactive fatty acids, and is commonly attributed to the changes in the microbial population. The aim of the present study was to determine the changes occurring in nine ruminal bacterial taxa...
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 2008
ISSN: 2378-5977
DOI: 10.4148/2378-5977.3129