Timothy Kenneth Driver,James Richard Hugh Christian
申请号:
US14762738
公开号:
US20150320535A1
申请日:
2014.01.27
申请国别(地区):
US
年份:
2015
代理人:
摘要:
Methods are provided for estimation of birthing data (such as birthing date and birthing weight) by consideration of a mother animals weight over an expected birthing period. The method includes: measuring or providing the weight of the mother animal at intervals over an expected birthing period to provide a series of dated weight records, estimating the underlying weight of the mother animal over the expected birthing period from the series of dated weight records, and identifying a significant weight drop of the mother animal by reference to the estimated underlying weight, wherein the estimated birthing date is on or before the date of the significant weight drop. The methods are particularly useful in animals associated with production, such as cattle.