Characteristic changes of ruminal fermentation in transition dairy cows
نویسندگان
چکیده
منابع مشابه
Changes in Ruminal Microbial Populations in Transition Dairy Cows
We used four ruminally fistulated, multiparous, pregnant Holstein cows to delineate microbial adaptations in dairy cows as they experienced the transition from one lactation to the next. Diets consisted of typical far-off and close-up diets, a late lactation diet containing wet corn gluten feed (20% DM) and an alfalfa hay-corn silage based early lactation diet. Calculated NEL (Mcal/lb), measure...
متن کاملPReVeNtING RUMINAL ACIDosIs IN DAIRY CoWs
Feeding dairy cows for maximum milk production increases the risk of ruminal acidosis. Diets fed to high producing dairy cows in North America are typically highly digestible in the rumen and often lack sufficient physical fiber. Rapid fermentation of carbohydrates causes an accumulation of volatile fatty acids (VFA) in the rumen, leading to a drop in ruminal pH. Lack of sufficient physical fib...
متن کاملBlood gases and metabolite content and ruminal fermentation in response to diets with different fermentability in Holstein dairy cows
The objective of this study was to determine the effects of diets having different fermentability on blood gases, blood metabolites and ruminal fermentation parameters in Holstein dairy cows. Four multiparous Holstein dairy cows (665 ± 25 kg BW, 170 ± 7.0 DIM and 15±1.5 kg of milk yield), fitted with rumen cannulae, were used in a 4×4 Latin Square design with 28-d periods. Corn starch and sucro...
متن کاملThe effect of Saccharomyces cerevisiae on ruminal fermentation in dairy cows
This study presents the results of an experiment in which the effect of addition of a yeast culture (Saccharomyces cerevisiae, Strain 47) on rumen fermentation was studied in thirty-six dairy cows of Holstein breed. The animals were divided into one control and five experimental groups. Each group involved 6 individuals. The animals received a diet consisting of good maize silage with a higher ...
متن کاملEffect of processing whole cottonseed on nutrient digestibility and ruminal fermentation in dairy cows*
Four ruminally cannulated Holstein cows were used in a 4 × 4 Latin square design to determine the effect of feeding linted, delinted and extruded linted whole cottonseed (WCS) on nutrient digestibility and ruminal fermentation. Result showed that crude protein digestibility was lower in linted and delinted WCS treatments than control and extruded linted WCS treatment. Cows fed extruded delinted...
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 2002
ISSN: 2378-5977
DOI: 10.4148/2378-5977.3154