Evaluating fertility and growth rate potential of indigenous sheep breeds submitted to heat stress under different management systems.
Sheep breeds
fertility
growth rate
stress hormones
thermal stress
Journal
Journal of advanced veterinary and animal research
ISSN: 2311-7710
Titre abrégé: J Adv Vet Anim Res
Pays: Bangladesh
ID NLM: 101647585
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
14
10
2019
revised:
23
12
2019
accepted:
26
12
2019
entrez:
29
3
2020
pubmed:
29
3
2020
medline:
29
3
2020
Statut:
epublish
Résumé
Sheep farming is an important source of livelihood in the southern Khyber Pakhtun Khwa province of Pakistan where they are reared under extensive system (ES). This system has limitations of improper feeding, rearing, and management which negatively affect their productivity. The present study compares different rearing systems and their stresses on fertility, behavior, and growth rate potential of two sheep breeds of Pakistan. Eighty ewes were selected; forty each from Damani and Balkhi breeds reared in semi-intensive system (SIS) and ES at Paharpur district, Dera Ismail Khan. Blood samples were collected in triplicate on days 0, 14, and 28 of May, and the molecular and behavioral stress, growth, and fertility rates were recorded. The highest growth and fertility rate were observed in both the breeds in SIS than in ES ( It was concluded that both Damani and Balkhi sheep showed lower stress levels and better fertility and growth parameter in SIS than ES system of rearing. Local Damani breed exhibited well tolerant ability and genetic adaptation to the local environment as compared to Balkhi breed.
Identifiants
pubmed: 32219124
doi: 10.5455/javar.2020.g407
pmc: PMC7096119
doi:
Types de publication
Journal Article
Langues
eng
Pagination
170-176Informations de copyright
Copyright: © Journal of Advanced Veterinary and Animal Research.
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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