As physiological cycles vary for individual cows, successful breeding and maximum profitability requires that dairy farms can identify the estrus period correctly. Missing a cow's estrus period can result in an about 2,000-yuan loss – assuming a milk yield of 30 kg per day and a value of 3...
Body weight in cattle ranges from 25–45 kg at birth to 464–653 kg at maturity. Common Terms Related to Cattle Terms related to cattle that are commonly used are given in Table 2. Table 2. Common terms related to cattle Common name of animalMaleFemaleYoungGroupAct of matingGestation/pregn...
The maximum capacity of the liver to remove NH 3 during its first pass was on average 1·84 mmol/min per kg wet weight. The cows became intoxicated when arterial plasma ammonia concentrations reached 0·8 mmol/1. Concentrations of NH 3 in jugular venous blood were between 66 and 74% of...
A 100 kg increase in cow weight alone gave calves that were 28 kg heavier at slaughter, 14 kg more lean tissue, 1.8 kg more fat and 3.4 kg more carcass bone. Dam's milk yield had no significant effect on carcass tissue yield. A 1 mm increase in fatness of dam at calving decreased ...
EW cows gained 0.32kg dmore during this same period than LW cows in 1982 (0.86 vs. 0.54kg d) and lost 0.21kg dless in 1983 (0.10 vs. 0.31kg d). These differences in gain did not result in significant weight differences between EW and LW cows entering the winter feeding period in ...
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Early weaning cows had more weight gain from calving to weaning (42.5 vs. 18.7 kg, respectively), and regarded to calf production index, they were more efficient (efficiency of the herds). At the average of the three years, the early weaning of the calves allows higher calving rates and ...
The size and weight of a cow is highly dependent on the breed. Mature males weigh 450–1,800 kg (1,000–4,000 pounds) and females weigh 360–1,100 kg (800–2,400 pounds). Both males and females have horns, and although these may be short in many breeds, they can grow to be ...
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