OESTRUS BEHAVIOUR AT HORMONALLY INDUCED AND NATURAL PUBERTAL OESTRUS IN INDIGENOUS HEIFERS OF ASSAM

B.K. Sarmahl; R.K. Biswas; D.J. Dutta; B.C. Sarmah'

Indian Journal of Animal Research

Chief EditorM. R. Saseendranath
Print ISSN 0367-6722
Online ISSN 0976-0555
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Indian Journal of Animal Research, volume 38 issue 1 (january to june 2004) : .68·70

OESTRUS BEHAVIOUR AT HORMONALLY INDUCED AND NATURAL PUBERTAL OESTRUS IN INDIGENOUS HEIFERS OF ASSAM

B.K. Sarmahl, R.K. Biswas, D.J. Dutta, B.C. Sarmah'

Affiliations

¹Deparbnent of Animal Physiology, Coll~e of Veterinary Science, MU, Khanapara, Guwahatl-781 022, India

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Cite article:- Sarmahl B.K., Biswas R.K., Dutta D.J., Sarmah' B.C. (2025). OESTRUS BEHAVIOUR AT HORMONALLY INDUCED AND NATURAL PUBERTAL OESTRUS IN INDIGENOUS HEIFERS OF ASSAM. Indian Journal of Animal Research. 38(1): .68·70. doi: .

ABSTRACT

Oestrus was induced in 20 prepubertal indigenous heifers of Assam by applying norgestomet (Crestar) ear implant and 300 IU PMSG. Another 20 heifers that received saline served as control. Oestrus behaviour of the animals was noticed by visual means and by parading vasectomized bull. Among the behavioural symptoms of oestrus genital discharge, acceptance of male and mounting on herd mates and males were predominant in heifers induced to oestrus. Oestrus symptoms were similar in induced and natural pubertal oestrus, though proportion of animals displaying different symptoms varied between the two categories.

KEYWORDS

REFERENCES

Esslemont, R.J. and Bryant, M.J. (1976). Vet. Ree., 99: 4721.
Foote, R.H. and Onuma, H. (1970). J. Dairy Sci., 33: 1681.
Hurnik, J.F. and King, G.J. (1980). IXth Intern. Congo Anim. Repro. and Arlif. Insem. June 16-20, Madrid, Spain.
Mikelsen, W.O. etal (1978). Theriogenology., 10: 167-173.
Ranjhan, S.K. (1998). Nutrient Requirements of Livestock and Poultry. Indian Council of Agricultural Research, New Delhi.
Rao, M.N. and Kodagali, S.B. (1982). Proc. Buffalo Seminar on Repro. and Meat Prod. January, 15-17, Tanuku, Andhra Pradesh, India.
Saraswat, P. et al (1997). Indian Vet J., 74: 850-853.
Seidel, G.E. (Jr). et al. (1971). J. Dairy Sci., 54: 923.
Srivastava, S.K. et al. (1998). Indian lkt. J., 75: 43-45.

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[
esslemont_1976] Esslemont, R.J. and Bryant, M.J. (1976). Vet. Ree., 99: 4721.

[2] Foote, R.H. and Onuma, H. (1970). J. Dairy Sci., 33: 1681.

[3] Hurnik, J.F. and King, G.J. (1980). IXth Intern. Congo Anim. Repro. and Arlif. Insem. June 16-20, Madrid, Spain.

[4] Mikelsen, W.O. etal (1978). Theriogenology., 10: 167-173.

[5] Ranjhan, S.K. (1998). Nutrient Requirements of Livestock and Poultry. Indian Council of Agricultural Research, New Delhi.

[6] Rao, M.N. and Kodagali, S.B. (1982). Proc. Buffalo Seminar on Repro. and Meat Prod. January, 15-17, Tanuku, Andhra Pradesh, India.

[7] Saraswat, P. et al (1997). Indian Vet J., 74: 850-853.

[8] Seidel, G.E. (Jr). et al. (1971). J. Dairy Sci., 54: 923.

[9] Srivastava, S.K. et al. (1998). Indian lkt. J., 75: 43-45.

OESTRUS BEHAVIOUR AT HORMONALLY INDUCED AND NATURAL PUBERTAL OESTRUS IN INDIGENOUS HEIFERS OF ASSAM

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