Innovation of prediction equations for milk composition estimation in milk recording at alternative sampling and half a day milking interval
نویسندگان
چکیده
منابع مشابه
Alternative milk recording schemes
The effect of reducing the frequency of offi cial milk recording and the number of recorded samples per test-day on the accuracy of predicting daily yield and cumulative 305-day yield was investigated. A control data set consisting of 58 210 primiparous cows with milk test-day records every 4 weeks was used to investigate the infl uence of reduced milk recording frequencies. The accuracy of pre...
متن کاملDay-to-day variation in milk yield and milk composition at the udder-quarter level.
Automatic in-line measurement of milk composition and milk yield could be a useful tool in management of the dairy herd. Data on milk components and milk yield provide information on milk quality alterations and cow health status but are also useful in planning feeding and breeding. In automatic milking systems, udder quarters are milked individually, enabling analysis and recording at the udde...
متن کاملThe effects of different milking intervals and milking times per day in jennet milk production.
In their first 150 days of lactation, nine Ragusana jennets were investigated at the 'Istituto Sperimentale Zootecnico per la Sicilia' (ISZS) in Palermo, to study the effects of different milking typologies on milk production. The jennets were kept in a paddock and were fed hay ad libitum and concentrate (3.5 kg jennet/day). From post-foaling day 21, every 3 weeks individual milk amounts were r...
متن کاملMilking lactating mares using oxytocin : milk volume and composition
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متن کاملStudy of Milking Efficiency, Biochemical Milk Composition and Hormonal Blood Parameters of Armenian Goat Breeds for the Second Lactation Period
The purpose of the given work was to study the dairy efficiency of the delivered, local and crossbreed goats in three different generations (F1, F2 and F3), derived from their crosses, as well as the biochemical composition of milk and some bloodplasma hormones, participating in the process of lactopoez. For the biochemical tests of milk we have selected casein and serumproteins, iron in lactof...
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ژورنال
عنوان ژورنال: Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
سال: 2013
ISSN: 1211-8516,1211-8516
DOI: 10.11118/actaun201260060103