Research Article
Meta-analysis on Performance for Reproductive Traits of Jersey Cross, 50% HF and 75% HF Cross Dairy Cattle in Ethiopia
Danayit Alem*
,
Nibo Beneberu
Issue:
Volume 13, Issue 3, September 2025
Pages:
51-56
Received:
31 March 2025
Accepted:
21 June 2025
Published:
8 July 2025
DOI:
10.11648/j.ijgg.20251303.11
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Abstract: This review aimed to evaluate the reproductive performance of Jersey cross, 50% HF cross, and 75% HF cross dairy cattle in Ethiopia. Data from 287 crossbred cattle records were analyzed to assess traits including age at first service (AFS), age at first calving (AFC), calving interval (CI), days open (DO), and number of services per conception (NSPC). Statistical analysis was conducted using SAS 9.0 and SPSS 22.0. Overall means (± SD) were 30.68 ± 4.76 months for AFS, 40.99 ± 4.95 months for AFC, 456.93 ± 49.16 days for CI, 147.40 ± 43.74 days for DO, and 1.69 ± 0.28 for NSPC. Genetic group did not significantly (p > 0.05) influence reproductive traits. However, 75% HF crosses exhibited superior AFS and NSPC, while 50% HF crosses had shorter CI, and Jersey crosses showed better AFC and DO. Phenotypic correlations among reproductive traits were predominantly low and positive (e.g., 0.244 between CI and NSPC), except for a weak negative correlation (-0.072) between AFS and AFC. The findings suggest that 75% HF crossbred cow’s demonstrated favorable reproductive outcomes in select traits. To optimize reproductive performance, improvements in heat detection, timely insemination, health management, and genetic strategies for crossbreeding are recommended.
Abstract: This review aimed to evaluate the reproductive performance of Jersey cross, 50% HF cross, and 75% HF cross dairy cattle in Ethiopia. Data from 287 crossbred cattle records were analyzed to assess traits including age at first service (AFS), age at first calving (AFC), calving interval (CI), days open (DO), and number of services per conception (NSP...
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