AGE AT FIRST CALVING OF ASSAM LOCAL CATTLE AND THEIR CROSSES WITH JERSEY AND HOLSTEIN FRIESIAN UNDER FIELD CONDITION*

Article Id: ARCC782 | Page : 70 - 72
Citation :- AGE AT FIRST CALVING OF ASSAM LOCAL CATTLE AND THEIR CROSSES WITH JERSEY AND HOLSTEIN FRIESIAN UNDER FIELD CONDITION*.Indian Journal Of Animal Research.2011.(45):70 - 72
Jakir Hussain1, R. Roychoudhury, G.C. Das, D.C. Mili and R.N. Goswami drjakir@gmail.com
Address : Department of Livestock Production and Management, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati - 781 022, India

Abstract

The least square means of age at first calving for Jersey X Local, Holstein Friesian X Local and Local cattle of Assam under field condition were 36.526 ± 0.576, 39.972 ± 0.641 and 46.719 ± 0.674 months, respectively. Effect of genetic group on this trait was highly significant (pune to September) seasons had significantly longer age at first calving than those born in post monsoon (October to November) and winter (December to February) seasons.

Keywords

Age at first calving Jersey cross Holstein Friesian cross.

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