Weaning a pig early compared to later will result in:

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In exploring the implications of weaning a pig early versus later, we need to evaluate how weaning age affects growth and health outcomes.
Option 1: 'higher risk of boar taint' — Boar taint is a quality issue related to boars (intact males) and their sexual maturity, not a direct consequence of when piglets are weaned. Early weaning does not inherently increase boar taint risk, so this statement is misleading in this context.
Option 2: 'higher average daily weight gain' — Early weaning typically imposes stress from separation and reduced rumen development, which can temporarily depress feed intake and nutrient absorption. Consequently, growth rate is usually not increased; it is more common to see a lag or slower growth in the short term, not a gain above normal expectations.
Option 3: 'lower mortality' — Early weaning can expose piglets to stressors (weaning shock, temperature changes, and diet adaptation) that may elevate, not reduce, mortality risk. Therefore, this option contradicts the physiological challenges associated with early weaning.
Option 4: 'lower average daily weight gain' — This aligns with the general pattern observed when piglets are weaned earlier: the abrupt transition and immature digestive tract can lead to reduced feed efficiency and slower daily weight gain compared with later-weaned controls. It reflects the expected growth penalty from early weaning.
Option 5: 'higher live weight at 5 months of age' — If early weaning reduces daily gain, it is unlikely to result in a higher weight by five months; earlier growth setbacks tend to translate into lower, not higher, live weight at that age.
Overall, the reasoning across options shows that early weaning tends to dampen short- to medium-term growth performance due to stress and gut maturity factors, making option 4 the most consistent with typical outcomes. The other statements either misattribute risks, assume benefits that are not supported by physiological considerations, or contradict observed growth patterns after early weaning.

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Weaning a pig early compared to later will result in:

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