Explain the term "lactation period" - Leaving Cert Agricultural Science - Question - 2006
Question
Explain the term "lactation period".
Before a dairy cow calves, she is "dried off" for a period.
(i) How long is she dried off for before calving?
(ii) Give one r... show full transcript
Worked Solution & Example Answer:Explain the term "lactation period" - Leaving Cert Agricultural Science - Question - 2006
Step 1
Explain the term "lactation period".
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Answer
The lactation period refers to the duration during which a female mammal, particularly a dairy cow, produces milk following the calving process. This period can vary based on the breed and management practices, but it typically spans several months until the animal is dried off before the next calving.
Step 2
(i) How long is she dried off for before calving?
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Answer
A dairy cow is generally dried off for about two months (approximately 60 to 65 days) before calving. This period allows the cow's body to recover and prepare for the next lactation cycle.
Step 3
(ii) Give one reason why this happens.
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Answer
Cows are dried off to allow recovery time for the body to build up reserves and to concentrate on the needs of the calf, ensuring that the cow is in optimal health for the next lactation.
Step 4
Give one reason why colostrum is so important for the calf.
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Colostrum is essential for the calf as it provides vital antibodies that help to build the calf's immune system, giving it resistance to diseases in the early days of life.
Step 5
Give one reason why cows have to be replaced.
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Answer
Cows may need to be replaced due to factors such as declining milk yield, aging, or health issues, which can affect their productivity and overall management in a dairy operation.
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