New Zealand Journal of Agricultural Research abstracts
Beef cycle buffering by embryo technology adoption in the dairy industry in New
Zealand
I. VETHARANIAM
D. G. MCCALL
AgResearch
Ruakura Research Centre
Private Bag 3123
Hamilton, New Zealand
Abstract The use of embryo transfer technologies to produce
pure-bred beef animals from the dairy industry has the potential to buffer
breeding cow and production cycles in the New Zealand beef industry. The use of
predominately female embryos can reduce the recovery time for breeding cow
numbers from 5 years to 3 years (with a 30% adoption rate). The use of male
embryos can reduce the recovery time for beef production from 9 years to 4
years (with a 30% adoption rate). In a long-term implementation of embryo
transfer technologies, the use of male embryos offers improved grazing
efficiency while retaining the capability to buffer declines in beef breeding
cow numbers with a switch to the use of female embryos.
Keywords beef population; beef production; breeding cows;
embryo technologies; national herd; New Zealand
New Zealand Journal of Agricultural Research, 1999, Vol. 42: 37-45
0028-8233/99/4201-0037 $7.00/0 (c) The Royal Society of New Zealand
1999
PDF file of entire paper: medium quality (678K); (scanned from paper original: notes about this process)
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