Rotational grazing of dairy cows : effect of grazing intervals on animal and grass production
نویسندگان
چکیده
منابع مشابه
Milk production of fall-calving dairy cows during summer grazing of grass or grass-clover pasture.
Milk production of fall-calving dairy cows during subsequent summer grazing was evaluated in two consecutive years using a total of 80 mid- to late-lactation Holsteins. Cows calved during September and October and grazed from April to August in the following year. In yr 1, 27 cows grazed a native grass pasture and 13 cows grazed a native grass-clover mixed pasture containing 26% red clover and ...
متن کاملEffect of Dietary and Animal Factors on Milk Fatty Acids Composition of Grazing Dairy Cows: A Review
In pasture-based milk production systems, using available farm resources in order to reduce feeding costs, the composition and functional properties of dairy cows’ milk are of considerable importance to the dairy farmer, manufacturer and consumer. Basically, there are three options for altering the composition and/or functional properties of milk: 1) cow nutrition and grazing management, 2) cow...
متن کاملAnimal Factors Condition Milk Performance and Quality of Grazing Dairy Cows
The base of this review is to consider the relevant role that animal factors (potential milk yield, body weight, body condition score, state of lactation, parity and fertility) play on milk performance (considering the energy balance and the rumen function across the full lactation curve of animals) and milk quality (milk protein content, milk fat content, milk lactose content, vitamins, minera...
متن کاملImpact of an Agroforestry System on Grazing, Ruminating, and Resting Behaviors of Dairy Cows
The present study aimed to evaluate the effects of agroforestry system on the feeding behavior of dairy cows in the Brazilian Amazon region. Nineteen cross breed dairy cows (14.0±3.30 kg/d of milk yield and 450±40.1 kg body weight) were used. The following treatments were evaluated: A) animals were maintained in opened pasture of Brachiaria brizantha during all the day; B) animals were...
متن کاملEffects of grass silage and soybean meal supplementation on milk production and milk fatty acid profiles of grazing dairy cows.
The effects of supplementation with grass silage and replacement of some corn in the concentrate with soybean meal (SBM) on milk production, and milk fatty acid (FA) profiles were evaluated in a replicated 4 x 4 Latin square study using 16 dairy cows grazing pasture composed of ryegrass, Kentucky bluegrass, and white clover. Each experimental period lasted for 3 wk. The 4 dietary treatments wer...
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ژورنال
عنوان ژورنال: Annales de Zootechnie
سال: 1995
ISSN: 0003-424X
DOI: 10.1051/animres:199505102