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Environmental stress effects on bovine reproduction
1Department of Animal Sciences, University of Hawaii-Manoa, Honolulu.
Summary
Environmental stressors like poor nutrition and heat negatively impact livestock reproduction. Managing these factors with technology and further research into nutrients can improve animal production efficiency.
Area of Science:
- Animal Science
- Reproductive Biology
- Environmental Physiology
Background:
- Environmental stressors encompass more than climate, including nutrition and housing, requiring animal adaptation.
- Dietary imbalances (low energy, improper protein) and high temperatures/humidity disrupt reproductive processes.
- These disruptions manifest as reduced estrous behavior, anestrus, embryonic mortality, and infertility.
Purpose of the Study:
- To review the multifaceted nature of environmental stress on animal reproduction.
- To highlight the impact of nutritional and thermal stressors on reproductive efficiency.
- To underscore the potential of modern technologies and further research in optimizing livestock production under stress.
Main Methods:
- Literature review synthesizing existing research on environmental stress and animal reproduction.
- Analysis of the physiological and endocrine mechanisms affected by stressors.
- Examination of management strategies and technological interventions.
Main Results:
- Environmental stressors significantly impair reproductive performance in livestock.
- High temperatures and humidity are key factors leading to infertility and reproductive failure.
- Nutritional deficiencies or excesses exacerbate the negative effects of environmental stress.
Conclusions:
- Effective management of environmental factors is crucial for maintaining livestock reproductive health and productivity.
- Modern technologies offer solutions for mitigating stress impacts.
- Further investigation into nutritional and mineral supplementation, particularly under heat stress, is warranted to enhance livestock production.