Main topic Animal husbandry
Holstein heifers are mature by 15 months and breed at that age. The gestation period of Holstein heifers is about nine and half months. Holstein heifers calve for the first time between 23 and 26 months of age. Unlike their European counterparts, Holstein breed in US have on an average only 2.75 lactations. So any delay in breeding the heifer will reflect on the economy of its raising. The 2008 average actual annual production for all USA Holstein stocks which are eligible for genetic evaluations is:
Milk - 23,022 pounds (10,443 kg)
Butter fat - 840 pounds (380 kg)
Proteins - 709 pounds (322 kg).
The average lifetime lactation yield is around 61,729 pounds (28,000 kg) of milk.
Related images & information
|Description||A Holstein heifer|
|Date||17 May 2004|
|Permission||This work has been released into the public domain by its author, Tractorboy60. This applies worldwide.|
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|current||18:30, 20 November 2012||640 × 480 (108 KB)||Mahmood||en.wikipedia.org/wiki/ File:Holstein_heifer.jpg en.wikipedia.org/wiki/ User:Tractorboy60|
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