Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics

Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics

In Iran, increasing demand for red meat, caused by increasing human population, pasture limitations and increasing cost of production, has become an impetus for sheep producers to change the system of farming and optimise meat production for more efficient output per unit livestock. One way to ac...

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Main Author: Kiyanzad, Mohammad Reza
Format: Thesis
Language:English
English
Published: 2002
Subjects:
Sheep - Breeding - Case studies
Online Access:http://psasir.upm.edu.my/id/eprint/10628/1/FP_2002_37.pdf
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id my-upm-ir.10628
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spelling my-upm-ir.106282024-04-30T04:24:50Z Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics 2002-02 Kiyanzad, Mohammad Reza In Iran, increasing demand for red meat, caused by increasing human population, pasture limitations and increasing cost of production, has become an impetus for sheep producers to change the system of farming and optimise meat production for more efficient output per unit livestock. One way to achieve the latter goal is by taking advantage of the effect of heterosis from crossbreeding. Twenty seven rams and 473 ewes of three popular breeds of sheep in Iran, namely the Chal, Moghani and Zel, were crossed reciprocally. The reproductive performances of the ewes, and the growth performance, feed conversion ratio and carcass traits of the offspring, under an intensive system of management, were studied. Zel ewes showed higher (P<0.05) overall apparent fertility, reproductivity and productivity compared Chal and Moghani ewes. Sheep - Breeding - Case studies 2002-02 Thesis http://psasir.upm.edu.my/id/eprint/10628/ http://psasir.upm.edu.my/id/eprint/10628/1/FP_2002_37.pdf text en public doctoral Universiti Putra Malaysia Sheep - Breeding - Case studies Faculty of Agriculture Panandam, Jothi Malar English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
advisor Panandam, Jothi Malar
topic Sheep - Breeding - Case studies
spellingShingle Sheep - Breeding - Case studies


Kiyanzad, Mohammad Reza
Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics
description In Iran, increasing demand for red meat, caused by increasing human population, pasture limitations and increasing cost of production, has become an impetus for sheep producers to change the system of farming and optimise meat production for more efficient output per unit livestock. One way to achieve the latter goal is by taking advantage of the effect of heterosis from crossbreeding. Twenty seven rams and 473 ewes of three popular breeds of sheep in Iran, namely the Chal, Moghani and Zel, were crossed reciprocally. The reproductive performances of the ewes, and the growth performance, feed conversion ratio and carcass traits of the offspring, under an intensive system of management, were studied. Zel ewes showed higher (P<0.05) overall apparent fertility, reproductivity and productivity compared Chal and Moghani ewes.
format Thesis
qualification_level Doctorate
author Kiyanzad, Mohammad Reza
author_facet Kiyanzad, Mohammad Reza
author_sort Kiyanzad, Mohammad Reza
title Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics
title_short Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics
title_full Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics
title_fullStr Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics
title_full_unstemmed Crossbreeding of Three Iranian Sheep Breeds with Respect to Reproductive, Growth and Carcass Characteristics
title_sort crossbreeding of three iranian sheep breeds with respect to reproductive, growth and carcass characteristics
granting_institution Universiti Putra Malaysia
granting_department Faculty of Agriculture
publishDate 2002
url http://psasir.upm.edu.my/id/eprint/10628/1/FP_2002_37.pdf
_version_ 1804888580647026688

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