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Summarize intrinsic genetic variants and extrinsic environmental factors that regulate reproductive performance in sheep.

January 1, 2022Reviews in Agricultural ScienceOpen Access

The Reproductive Traits of Sheep and Their Influencing Factors

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Authors

MAMajeed AjafarUniversity of Babylon AKAlaa Hasan KadhimGreen University of Bangladesh TATahreer M. Al‐ThuwainiGreen University of Bangladesh

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Implication

Narrative review uncovers genetic and environmental determinants of reproductive performance in sheep, highlighting the need for precise gene-environment interaction models in breeding.

Key Points

Summarize intrinsic genetic variants and extrinsic environmental factors that regulate reproductive performance in sheep.
Synthesized existing literature evaluating intrinsic genetic variations and extrinsic environmental factors affecting sheep reproduction.
Assessed documented candidate genes, focusing on transforming growth factor-β superfamily members (BMPR-1B, BMP15, GDF9), endocrine receptors, and metabolic regulators.
Identified primary genetic determinants of ovine reproductive traits, including mutations in BMPR-1B, BMP15, GDF9, melatonin receptor 1A, IGF-1, and leptin receptor genes.
Characterized key non-genetic drivers of reproductive success, showing marked variation driven by maternal age, seasonal photoperiod, herd management, nutritional status, body condition score, and birth type.

Cite This Study

Ajafar et al. (2022) studied this question.

synapsesocial.com/papers/69d72932ef370a38abf511a9 https://doi.org/10.7831/ras.10.0_82

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Implication

Narrative review uncovers genetic and environmental determinants of reproductive performance in sheep, highlighting the need for precise gene-environment interaction models in breeding.

The Reproductive Traits of Sheep and Their Influencing Factors

Discussion

Member takes

Implication

Key Points

Cite This Study

The Reproductive Traits of Sheep and Their Influencing Factors

Discussion

Member takes

Implication

Key Points

Cite This Study

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