Juan David Latorre

1. IntroductionOver the last few hundred years, humans have influenced the evolution of multiple animal species and different ecosystems involved in animal production [1]. This approach has led to the genetic change of domestic animals and has undoubtedly been driven by agriculture. The most important genetic changes in poultry production have occurred in the previous 60 years. Modern broiler chic ...

Following the success of the Research Topic “Alternatives to Antimicrobial Growth Promoters and Their Impact in Gut Microbiota, Health, and Disease: Volume II,” we received an invitation from Frontiers to work on Volume II. This second volume includes 31 scientific articles, in the text of individual chapters in this Frontiers Research Topic. The editors are grateful to all 197 authors ...

IntroductionModern broiler chickens are most certainly a most visible manifestation of genetic advancements. At hatch, a Cobb500 broiler weighs 42 grams. This newborn chick grows 31 % (55 g/bird) in just twenty-four hours. By day 35 of age, this chicken reaches a body weightof 2,521 grams, representing 5,902 % relative to hatching mass (Cobb-Vantres 500, 2022). Genetic selection, food, health, and ...

1. IntroductionThe permeability of the intestinal tract controls the uptake of nutrients and the transport of unwanted extracellular substances such as bacteria and xenobiotics, in addition to the non-digested substances. Therefore, gut health plays an essential role in the pathogenesis of various intestinal disorders. The permeability of the intestine is controlled by gut microbiota, digestive se ...