Fertility of indigenous “Atlas Brown” Algerian cattle under different heat stress levels
Bibliographic Data
| ID | 19269699 |
|---|---|
| Authors | Aziza Ferag (0000-0002-3966-896X, Mohamed-Cherif Messaadia University), Djalel Eddine Gherissi (0000-0003-1615-1658, Mohamed-Cherif Messaadia University, corresponding author), Tarek Khenenou (0009-0000-0821-6779, Mohamed-Cherif Messaadia University), Amel Boughanem (National Centre for Artificial Insemination and Genetic Improvement (CNIAAG)), Hafida Hadj Moussa (National Centre for Artificial Insemination and Genetic Improvement (CNIAAG)), Amina Maamour (Mohamed-Cherif Messaadia University), Christian Hanzen (0000-0001-5189-4428, Faculté de médecine vétérinaire) |
| Year | 2025 |
| Volume | 82 |
| Issue | 4 |
| Pages | 1797-1817 |
| Publication date | 2025-07-04 |
| Open Access | No |
| Type | ARTICLE |
| Venue | International Journal of Environmental Studies (JOURNAL) |
| Journal identifiers | ISSN: 0020-7233 • E-ISSN: 1026-7476 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/00207233.2025.2507444 |
| OpenAlex | W4410612530 |
| Language | EN |
| References cited | 72 |
This study investigates the impact of heat stress, measured by daily temperature-humidity index (THI), on the reproductive performance of native Algerian cows. We analysed fertility metrics from 3,847 artificial inseminations performed on 2,130 Atlas Brown cows. Results showed a total pregnancy rate (TPR) of 58.97%, a first-service conception rate (CR1stAI) of 24.41%, and a second-service conception rate (CR2ndAI) of 36.71%. Severe THI levels (>80) significantly decreased TPR by 26% and CR1stAI by 46%, but low and moderate THI had no significant impact. Heat stress did not significantly affect CR2ndAI and repeat breeding cows (RBC), though moderate and severe heat stress decreased CR2ndAI, and severe heat stress increased RBC. Moderate heat stress reduced the proportion of cattle with <30 days reproductive period. The study shows that Atlas Brown cattle are susceptible to high THI levels and perform well under low and moderate heat stress, suggesting the potential utility of indigenous breeds in high-THI regions
Animal science · Atlas (anatomy) · Biology · Fertility · Fishery · Geography · Heat stress · Indigenous · Population · Animal Diversity and Health Studies · Demography · Ecology · Effects of Environmental Stressors on Livestock · Environmental Science · Rangeland Management and Livestock Ecology
| Highly cited | No |
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