a. FALSE. Piglets are born with very little brown fat, and they rely on external heat sources such as the sow or supplemental heating to maintain body temperature.
b. TRUE. Pregnant sows require increased nutrition to support the growth and development of the fetuses.
c. TRUE. Improved pig breeds are often bred for high feed conversion efficiency and fast growth rates, leading to a high feed conversion ratio and high average daily gain.
d. FALSE. Indigenous pig breeds can have good fertility rates and are often known for their hardiness and ability to thrive in local environments. They can also be good scavengers.
e. TRUE. Breeding boars are often fed ad libitum to ensure they have sufficient energy and nutrients for good semen production.
f. FALSE. A pregnant sow should be fed a diet with adequate fiber to support gut health and prevent constipation, but excessive fiber can indeed contribute to diarrhea.
g. TRUE. Cottonseed oilcake can contain tannins, which are anti-nutritional factors that can interfere with nutrient absorption and utilization in pigs.
h. TRUE. Piglets are often injected with iron soon after birth to prevent iron deficiency anemia, which is common in piglets due to their limited iron stores.
i. FALSE. A carcass with hard fat generally contains more saturated fatty acids, while a carcass with soft fat tends to have higher unsaturated fatty acid content.
j. FALSE. The Kolbroek is not a spotted breed, and it is not considered an improved pig breed. It is a traditional breed from South Africa known for its hardiness and adaptability.