This research studied what affects the number and health of piglets in large-scale farms. It found that the year, the mother sow's age, and her weight at birth are major factors. Moving piglets between litters after birth (cross-fostering) also helps them grow better. While genetics play a role, good management practices are even more important. The best results come from combining careful genetic selection with excellent daily care, proper feeding, and a controlled environment for the animals.

The ability of spermatozoa to penetrate the egg and their competitiveness in the female reproductive organs may depend on their dimensions and shape, and these are often related to the characteristics of the ejaculate.  It has been shown that, as sperm concentration in the ejaculate increases, the dimensions of spermatozoa heads and tails decrease. Sperm concentration also affects the shape of Arctic fox spermatozoa.

This study is the first to measure a natural sperm protection protein at both gene and protein levels in Donggala bulls, an Indonesian cattle breed not previously studied this way. We found that higher levels of this protein are linked to better sperm movement, healthier cell membranes, and less damage after freezing and thawing. This protein can help identify stronger bulls for breeding and support improved cattle reproduction and conservation.

This study investigated the effect of organic and inorganic chromium supplementation on growth and nutrient digestibility in chickens raised under chronic heat stress. The results show that 400 ppb organic chromium and 100 ppb inorganic chromium improve growth and protein digestibility. The use of organic chromium has demonstrated greater effectiveness, suggesting that it could be a useful strategy for nutritional management under adverse climatic conditions.