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Reproductive efficiency is an important target in a beef-rearing enterprise - Leaving Cert Agricultural Science - Question c - 2017
Question c
Reproductive efficiency is an important target in a beef-rearing enterprise. (i) Explain the term reproductive efficiency. (ii) Describe three factors affecting re... show full transcript
Worked Solution & Example Answer:Reproductive efficiency is an important target in a beef-rearing enterprise - Leaving Cert Agricultural Science - Question c - 2017
Step 1
Explain the term reproductive efficiency.
Answer
Reproductive efficiency refers to the effectiveness with which a breeding herd produces live, weaned offspring. It is commonly measured as the number of calves weaned per 100 cows mated, emphasizing the relationship between the number of successful births and the fertility of the breeding stock. High reproductive efficiency indicates that most cows in a herd have successfully given birth to healthy calves, thus maximizing production and profitability in a beef-rearing enterprise.
Step 2
Describe three factors affecting reproductive efficiency.
Answer
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Body Condition Score (BCS): The nutritional status of the cows, as indicated by their body condition score, greatly impacts reproductive efficiency. Cows with appropriate body condition are more likely to conceive and carry calves to term.
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Heat Detection: The ability to accurately detect heat cycles in breeding cows is crucial. Effective heat detection leads to timely artificial insemination or natural breeding, resulting in higher conception rates.
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Calving Interval: The time between successive calvings affects efficiency. A shorter calving interval typically indicates better reproductive health and management, allowing for more calves to be produced over a given period.