Milk Yield


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Milk Yield

 

the amount of milk, in kilograms or liters, obtained from agricultural animals, mainly cows, sheep, and mares, during a specified period, for example, a given milking, a day, a month, a period of lactation, or the animal’s entire life. The size of milk yield depends on the type of animal, the animal’s breed, age, individual features, and period of lactation, and the conditions under which it is fed and cared for. The highest milk yields are from cows of specialized dairy breeds. As the animal grows older, its milk yields increase until the sixth or seventh lactation and then decrease. Milk yield increases in the first 1½ to two months after calving and gradually decreases after the third month. Increase in the animal’s weight to the optimum for the breed is accompanied by an increase in milk yield. Milk yield increases if the animal is milked three or four times a day; however, this entails a greater expenditure of labor.

References in periodicals archive ?
It was estimated negative low correlations between milk yield and somatic cell count (P<0.
Estimation breeding value (EBV) of 305-day milk yield in different parities is shown in Figure 3.
Another aim was to investigate if SCC over 50,000 cells/mL can already indicate a subclinical case of mastitis and therefore causes a milk yield depression or if the current 100,000 SCC/mL limit is accurate enough.
Garg and Mehta (1998) also revealed that without disturbing the dry matter intake, the milk yield was significantly increased by the feeding of by-pass fat.
Weekly milk yield and pedigree records of Sahiwal cows calved between 1984 and 2005 were collected from the milk record, disposal and birth registers.
Jersey, Brown Swiss, Red Dane, Ayrshire and Guernsey are most important other foreign breeds of cattle with higher milk yields.
A healthy cow can produce an average milk yield of 3740 liters of milk in 315 days of lactation length in good management and environmental conditions of Pakistan [1].
The EBVs for 305-day cumulative milk yield were obtained by the sum of EBVs on each day of lactation of the animal, represented by formula [MRA.
a milk yield for full lactation and milk composition under GOST 25179-90;
Rectal temperature, pulse rate, respiration rate, ruminal movement and milk yield
Lactating cows were dried off when they were seven month pregnant or when their milk yield was less than 2 kg per d.