Published in Journal of animal science
Piglet survival is under genetic control and there are clear differences between individuals in their ability to live. Animals that do not survive their first weeks will obviously not reproduce as this is natural selection. Animals that survive still harbor relevant genetic differences. The genomic toolset, the use of genetic markers, makes it poss...
Published in Journal of animal science
Achievement of pre-/post-weaning piglet success requires careful environmental management to ensure the thermal needs of the pigs are adequately met to reduce stress and promote livability, performance, and health. This review focuses on the impact and management of the housing environment as well as responses of pigs during the first 8 wk of life,...
Published in Journal of Animal Science
Both direct and maternal heterosis increase birth and post-natal weights in crossbred lambs. Estimates of these heterotic effects can be used as adjustment factors in multi-breed genetic evaluations.
Published in Journal of animal science
The link between the composition of the gut microbiota, i.e the composition of microorganisms in the gut, in pigs and their feed efficiency, i.e. their ability to utilize nutrients, as well as their ability to digest were studied from a genetic point of view. A family structure of 1,564 pigs were studied and fed with two different diets. One of the...
Published in Journal of Animal Science
1. Increasing Vitamin E supplementation increases tissue content of Vitamin E but has little impact on fatty acid content of tissues. 2. Different fat sources clearly affect the fatty acid content of tissues and have differing effects on plasma Vitamin E content.
Published in Journal of animal science
Low birth weight (LBW) has been associated with higher rate of mortality and morbidity and the development of metabolic complications, leaving burdens on livestock production and human health care. The feasibility of LBW metabolic restoration via postnatal nutrition compensation has been verified and the role of one of essential amino acids, l-tryp...
Published in Journal of Animal Science
The addition of both Bacillus probiotics, without interruption for three consecutive cycles, improved the reproductive performance of the sows in terms of prolificacy. Furthermore, the B. amyloliquefaciens strain also exhibited a significant increase in the number of live piglets born per litter. Probiotic administration for three full cycles appea...
Published in Journal of Animal Science
At birth and during lactation phase, the light body weight of piglets born from hyperprolific sows predisposed to a higher expression of stress and pro-inflammatory genes.
Published in Journal of Animal Science
Precision technology is rapidly being implemented in confined and extensive livestock production systems. Understanding what has been done is critical to successful short- and long-term gains in multifaceted and complex animal–plant–soil–water systems, requiring effective integration of precision system models.
Published in Journal of Animal Science
Operational proxies of robustness, based on data collected routinely on farm in fattening pigs, could be used in genetic selection for this trait.
