Genetic variation in physiological adaptation of local, exotic and crossbred ducks to heat stress in a tropical environment
| Autor: | ABEL OGUNTUNJI, ADETOLA OLADEJO, OLUSEYI AYOOLA, IFEOLUWA OLUWATOMINI, OPEOLUWA ORIYE, MOJISOLA EGUNJOBI |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Genetics And Biodiversity Journal, Vol 3, Iss 1, Pp 39-49 (2019) |
| ISSN: | 2588-185X 2602-5582 |
| DOI: | 10.46325/gabj.v3i1.48 |
| Popis: | Biotic and abiotic environmental factors significantly contribute to the well-being and performance of farm animals. Thermal adaptation is central to livestock survival, performance and profitable enterprise most especially in hot tropical and sub-tropical environments characterized with high environmental temperatures. Heat tolerance of 106 adult Muscovy (Cairina moschata) (20 males and 20 females), Mule (Anas sterilis) (14 males and 12 females) and Mallard (Anas platyrhynchos) (20 males and 20 females) ducks was investigated through physiological indices {respiratory rate (RR), panting rate (PR), skin temperature (ST) and rectal temperature (RT)} collected at two periods {morning (7.00 – 8.30 hours) and afternoon (12.00 – 13.30 hours)}. Variance analysis revealed significant (P. Syntheses of results in this study indicated that Muscovy and Mule ducks were genetically superior in heat tolerance and have higher adaptive capacity to thrive better in sub-optimal hot environment. |
| Databáze: | OpenAIRE |
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