منابع مشابه
Feeding supplemental fat and undegraded intake protein to early lactation dairy cows.
Forty-eight Holstein cows (16 primiparous) were fed alfalfa silage-based TMR containing 18% CP with 33 or 36% of the CP as undegraded intake protein and with 0 or 2.8% supplemental fat (DM basis). Expeller soybean meal replaced solvent soybean meal to vary undegraded intake protein, and sodium alginate-treated tallow was used as the fat source. A standard diet containing solvent soybean meal wi...
متن کاملRelationships between feeding behaviour and feed intake in dairy cows during early lactation
VII CHAPTER 1: Introduction 1 CHAPTER 2: Background 3 2.1 Feed intake in transition period 5 2.2 Regulation of feed intake 7 2.3 Feeding behaviour 14 2.4 Measuring of feeding behaviour 16 2.5 Physiological changes and metabolic disorders during transition period and early lactation 22 2.6 Sensor-based monitoring of feeding behaviour and feed intake as well as metabolic-related production diseas...
متن کاملfeeding frequency effects in early lactation on productive efficiency of holstein cows
the present study was conducted in order to determine the effects of feeding frequency (ff) on dairy cow performance fed a total mixed ration (tmr) based on chopped alfalfa hay. eight multiparous early lactation holstein cows were housed in the individual boxes (4 × 3 m) and fed either once a day (1x) at 0700 h or 4 times a day (4x) at 0100, 0700, 1300 and 1900 h with tmr. the experiment was do...
متن کاملFeeding and Managing Cows to Minimize Heat Stress
Environmental-induced hyperthermia compromises e cient animal production and jeopardizes animal welfare. Reduced productive output during heat stress was traditionally thought to result from decreased nutrient intake. Our observations challenge this dogma and indicate heat-stressed animals employ novel homeorhetic strategies to direct metabolic and fuel selection priorities independently of nut...
متن کاملOvarian function and estrus in dairy cows during early lactation.
The onset of ovarian function and occurrence of estms were monitored in two groups of Holstein cows over the first 90 days postpartum. Group 1 consisted of 36 animals housed in a free stall area and observed continuously for estrus with closed circuit television and a time lapse videorecorder. Group 2 consisted of 33 cows housed in tie stalls with estrus detected by the herdsmen. Blood samples ...
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 1987
ISSN: 2378-5977
DOI: 10.4148/2378-5977.3025