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OJVRTM
Online Journal of
Veterinary Research©
Volume 24(8): 503-509, 2020.
Genetic weight phenotypes of Kabashi
desert sheep in Sudan.
FM El-Hag1, M-KA
Ahmed2, LMA Musa2,3
1Agricultural Research Corporation (ARC), El-Obeid
Research Station, El-Obeid,2 Faculty of Animal Production, University of
Khartoum, Khartoum North, Sudan and 3Correspondence:
Humboldt University of Berlin, Institute of Animal Science, Dept.
Animal Breeding in the Tropics and Subtropics, Berlin , Germany
ABSTRACT
FM El-Hag, M-KA Ahmed, LMA Musa., Genetic weight phenotypes of Kabashi desert sheep in Sudan, Onl
J Vet Res., 24(8): 503-509, 2020. We describe genetic
and phenotypic weight traits of 572 Sudan desert lambs (Kabashi
subtype), sired by 21 rams over 9 years. Season of birth, gender and lamb type at birth accounted for 17.4-37.7%
of phenotypic variance for body weight and gain. We
assessed body weight at birth and 30, 60, 90 and 150 days. Highest h2s was for weight at birth (0.27±0.113)
and lowest at 120 days (0.07±0.088). Highest h2s
for weight traits was 30 days (0.23±0.151) and lowest at 90 days
(0.13±0.097). Body weight at birth genetically correlated with that at 30 days
(0.62), whilst at 30 correlated with 120 days (0.76). Phenotypic correlations
among body weight traits tended to decrease with age, whereas the genetic
correlations among weight gain traits were all positive and tended to increase
with age. The pattern of genetic correlations among body weight traits showed possibility
for indirect selection for 120 days by selecting values at 30 days. However,
more data on lamb weights and growth need to be collected and analyzed.
Furthermore, there is a high need for delineating phylogenetic relationships
among the different subtypes of Sudan Desert sheep in the country.
Key words: Sudan, Desert
sheep, growth, heritability, correlations.
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