Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-07-06T04:39:16.882Z Has data issue: false hasContentIssue false
  • English
  • Français

Evaluation of the lamb and feed-lot performances of three crossbred and one purebred genotypes of Iranian fat-tailed sheep

Published online by Cambridge University Press:  20 November 2017

S. R. Miraei-Ashtiani ,
A. R. Noshary  and
M. Moradi Shahrbabak
S. R. Miraei-Ashtiani*
Affiliation:
The Department of Animal Science, Faculty of Agriculture, University of Tehran, Karaj, 31587-77935, Iran
A. R. Noshary
Affiliation:
The Department of Animal Science, Faculty of Agriculture, University of Tehran, Karaj, 31587-77935, Iran
M. Moradi Shahrbabak
Affiliation:
The Department of Animal Science, Faculty of Agriculture, University of Tehran, Karaj, 31587-77935, Iran
*
Email: ashtiani@chamran.ut.ac.ir
Get access

Extract

Sheep growers in Iran who raise breeds with light body weight, most often are interested to use rams of the heavier breeds to inseminate their ewes in order to obtain heavier lambs at sale. However, this practice may or may not be supported with enough scientific evaluations, on which only the results of very few studies are available (Kiyanzad, 2001; Farid, 1991; Makarechian et al 1978). The objective of this work was to declare the growth and feedlot performances of crossbred lambs, resulted from Afshari, Moghani and Shal (three heavy breeds) rams and Varamini (a light breed) ewes. The perfrormance of pure Varamini lambs was also adopted as a comparison benchmark.

Type
Genetics
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 146
Copyright
Copyright © The British Society of Animal Science 2003

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

Farid, A. 1991. Slaughter and carcass characteristics of three fat-tailed sheep breeds and their crosses with Corriedale and Targhee rams. Small Rum. Res. 5: 255–271.CrossRefGoogle Scholar
Kiyanzad, M. R. 2002. Crossbreeding of three Iranian sheep breeds with emphasis on growth and carcass characteristics of the lambs. Ph.D. Thesis, Putra University, Malaysia.Google Scholar
Makarechian, M., Whiteman, J. V., Walters, L. E. and Munson, A. W. 1978. Relationship between grouth rate, dressing percentage and carcass compositionin in lambs. J. Anim. Science. 46: 1610–1617.Google Scholar