Impact of heat stress on reproductive performances in dairy goats under tropical sub-humid environment.

Autor:	Adjassin JS; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin., Assani AS; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin.; Department of Sciences and Techniques of Animal Production and Fisheries, University of Parakou, Faculty of Agronomy, P.O. Box 123, Parakou, Benin., Bani AA; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin., Sanni Worogo HS; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin., Adégbeïga Alabi CD; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin., Comlan Assogba BG; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin., Virgile Azando EB; Department of Sciences and Techniques of Animal Production and Fisheries, University of Parakou, Faculty of Agronomy, P.O. Box 123, Parakou, Benin., Alkoiret IT; Laboratory of Ecology, Health and Animal Productions (LESPA), University of Parakou, P.O Box 123 Parakou, Benin.; Department of Sciences and Techniques of Animal Production and Fisheries, University of Parakou, Faculty of Agronomy, P.O. Box 123, Parakou, Benin.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2022 Feb 16; Vol. 8 (2), pp. e08971. Date of Electronic Publication: 2022 Feb 16 (Print Publication: 2022).
DOI:	10.1016/j.heliyon.2022.e08971
Abstrakt:	Reproductive parameters of dairy animals are generally affected by meteorological factors. This study aimed to investigate the effects of heat stress (HS) on reproductive parameters Saanen and Saanen× Red Maradi (½S½RM) dairy goats reared on a private farm in a tropical sub-humid environment in Benin. To assess the reproductive performances 103 goats (46 Saanen and 57 ½S½RM) were followed up from January 2015 to December 2019. The temperature-humidity index (THI) was obtained during the same period using meteorological data such as ambient temperature (AT) and relative humidity (RH). Pearson correlation matrix analysis was then performed between the environmental variables and the reproductive parameters. Reproductive parameters of ½S½RM goats were better than those of Saanen goats. The conception (92.09%), prolificacy (156.54%) and fecundity (117.11%) rates of ½S½RM goats were significantly higher than those of Saanen goats (67.16%; 149.41% and 89.70%). The conception rate of Saanen goats was not affected by the level of THI. The conception, prolificacy, and fertility rates of ½S½RM goats decreased from 97.22%, 161.35% and 121.52%, at moderate THI to 83.89%, 148.86%, and 110.04% at extreme THI, respectively. In summary, although Saanen goats were very efficient in milk production, their reproductive performance was affected by the level of THI. On the contrary, the ½S½RM crossbred goats had a better conception, prolificacy and fertility rates in the sub-humid tropical climate of Benin. Competing Interests: The authors declare no conflict of interest. (© 2022 The Author(s).)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu