Hostname: page-component-848d4c4894-r5zm4 Total loading time: 0 Render date: 2024-06-20T23:24:40.918Z Has data issue: false hasContentIssue false
  • English
  • Français

Factors affecting body weight and growth rate of Awassi lambs

Published online by Cambridge University Press:  27 March 2009

P. N. Bhat ,
G. L. Koul ,
S. K. Koul ,
R. Kumar  and
R. C. Garg
P. N. Bhat
Affiliation:
Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India
G. L. Koul
Affiliation:
Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India
S. K. Koul
Affiliation:
Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India
R. Kumar
Affiliation:
Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India
R. C. Garg
Affiliation:
Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India
Get access Rights & Permissions [Opens in a new window]

Summary

An experiment was carried out to study the effect of early weaning on body weight and growth rate of Awassi lambs raised at Abu-Ghurib Experiment Station, Baghdad, Iraq. Sex, type of birth and weaning age significantly influenced the body weight and growth rate of lambs at all the ages studied. Dam's age and weight at lambing, however, did not affect the growth rate of the lambs. The average body weights of lambs at 4 and 6 months of age were 23·8±0·28 and 32·3 ± 0·36 kg. The average daily gain in weight up to 120 and 180 days of age was 162·3 ±2·57 and 153·7 ±1·94 g/day respectively. Males were heavier than females and singles were heavier than twins at all the ages. Lambs weaned at 60 days of age were heavier and had a faster growth rate than those weaned at 90 or 120 days of age. Males born to 2-year-old dams grew fastest while the females born to them had the lowest body weights and growth rate.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 97 , Issue 2 , October 1981 , pp. 449 - 452
Copyright
Copyright © Cambridge University Press 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bhat, P. N., Abid, M. A. & Koul, S. K. (1979). A note on the performance of Awassi sheep. Indian Journal of Animal Science 49, 581–583.Google Scholar
Bhat, P. N., Asker, A. A., Badwey, E. F., Abu-El-Maaly, H. N. & Abid, M. A. (1978). Effect of early weaning on body weight of Awassi lambs. Indian Journal of Animal Science 48, 98–102.Google Scholar
Bonelli, P. (1961). Svezzamento Precocese alimentazione artificiale degli agnelli. Primo contributo sperimentale. (Early weaning and artificial feeding of lambs: First experimental contribution). Rivista di Zootecnia 34, 412 (vide BHAT et al. 1978).Google Scholar
Eliya, J. & Juma, K. H. (1970). Weight and body measurements in Awassi sheep. Iraqi Journal of Agriculture Science 5, 1.Google Scholar
Ghoneim, K. E., Taha, A., Taka, M. R., Abdallah, B. Kh. & Kazzal, N. T. (1973). Some economic characters of Awassi sheep in North Iraq. Publication no. 22 UNDP/FAO/SF Projects (IRAQ 69/515). Rome: F.A.O.Google Scholar
Harvey, W. R. (1966). Least-Squares Analysis of Data with Unequal Subclass Numbers. ARS, Washington D.C., U.S.A.: U.S.D.A.Google Scholar
Juma, K. H., Faraj, M., Eliya, J. & Al-Aubaidy, K. (1969). Studies on growth in Awassi sheep. Indian Journal of Animal Science 39, 503–512.Google Scholar
Kramer, C. Y. (1957). Extension of multiple range tests to group correlated adjusted means. Biometrics 13, 13–18.CrossRefGoogle Scholar
Lawlor, M. J., Louca, A. & Mavrogenis, A. (1974)The effect of three suckling regimes on the lactation performance of Cyprus fat-tailed, Chios and Awassi sheep and the growth rate of the lambs. Animal Production 18, 293–299.Google Scholar
Wardrop, I. D. & Coombe, J. B. (1961). The develop ment of rumen function in the lamb. Australian Journal of Agricultural Research 12, 661–680.CrossRefGoogle Scholar
Washlstrom, R., McCarty, J. & Ghoneim, K. E. (1963). Some economic characters of Netail sheep. Proceedings of Second Animal Production Conference Cairo 2, 405.Google Scholar