A new method of estimating breeding efficiency in Friesian sahiwal crossbreds. Short communication.
1986
Deshpande K.S. | Ingole G.K.
The data on age at first and subsequent calvings of 878 Friesian x Sahiwal crossbred cows distributed over 10 years (1974-83) were obtained. The new method of estimating breeding efficiency was as below BE(%) = (n(365)+900) x 100 divided by TCD, where n = number of calving intervals, TCD = total calving days, i.e. from the date of birth to the date of last calving. Since the heritability of breeding efficiency was low, the genetic correlations of breeding efficiency with other traits were of less importance. The phenotypic correlations in general were low.
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书目信息
页码
v.889-891(8)
其它主题
Amelioration des animaux; Pays bas; Efficacite; Evaluacion; Paises bajos
语言
英语
注释
3 tables.
类型
Journal Article; Journal Part
来源
Indian-Journal-of-Animal-Sciences (India). (Aug 1986). v. 56(8) p. 889-891.
团体作者
Marathwada Agricultural Univ., Parbhani (India). Coll. of Veterinary and Animal Sciences
2012-11-15
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