FERTILITY STATUS OF FRIESWALCOWS AND HEIFERS IN AN ORGANIZED HERD
Citation :- FERTILITY STATUS OF FRIESWALCOWS AND HEIFERS IN AN ORGANIZED HERD.Indian Journal Of Animal Research.2004.(38):41- 43
Study was conducted on Holstein Friesian (HF) × Sahiwal crossbred cows and heifers during 1998–1999. Crossbred cows and heifers were categorized into two groups viz., ‘Frieswal’ (5/8 HF inheritance) and ‘other crosses’ (having other than 5/8 HF inheritance). The overall herd fertility of cows and heifers was 34.01±1.11 and 34.80±1.22 per cent, respectively. Seasons significantly (P0.05) influenced the herd fertility of both cows and heifers. Herd fertility of ‘Frieswal’ cows and heifers ranged from 33.26±6.39 to 39.25±1.51 and 32.46±1.45 to 37.72±2.76 percent, respectively in various seasons. The corresponding values in ‘other crosses’ were 30.80±1.48 to 45.08±2.17 and 29.58±3.65 to 39.41±1.39, respectively. Both in Frieswal and other crosses cows herd frtility per cent was the highest during summer and lowest during winter seasons
- Ahmed, T.U. eta/. (1992). BangaladeshJ. TrainingDevelopment, 5: 85-93.
- Anonymous (1998). Annual Report 1998-99, Project Directorate on Cattle" Grass Farm Road, Meerut Cantt, Uttar Pradesh.
- Anonymous (1999). AnnualReport 1999-2000, Project Directorate on Cattle, Grass Farm Road, Meerut Cantt, Uttar Pradesh.
- Bagnato, A. and Oltenacu, PA (1994). J. Dairy Sci., 77: 874-882.
- Bhagat, RL. and Gokhale, S.B. (1999)./ndianJ. Dairy Sci., 52: 298-302.
- Esslemont, RJ. et al (1985). Fertility Management in Dairy Cattle. CoUins, 8 Grafton Street, London WI.
- Ghalot, G.C.eta/. (2001)./ndianJ. Anim. Sci, 71: 391-393.
- Noakes, D.E. (1997). FertiUtyand Obstetrics in Cattle. 2nd Ed. Blackwell Science Ltd., Osney Mead, Oxford OX2 OEL.
- Risco, CA etal. (1994). J. Dairy Sci., 77: 2562-2569.
- Snedecor, G.W and Cochran, WG. (1994). Statistical Methods. 6th Ed. Oxford and IBHPub. Co. New Delhi.