Two 125-day experiments of the same design were conducted to evaluate the effects of a heterotrophically grown microalgae (AURA) containing docosahexaenoic acid (DHA) on pig performance, carcass traits and the fatty acid composition of lean and adipose tissue. In each experiment, 144 Hypor pigs were blocked by sex, allocated to three treatment groups, and fed 0, 0.25% or 0.50% AURA in isonutritive, isocaloric diets. Pigs were weighed on days 0, 28, 56, 84 and 112. Feed and water intakes were measured every 28 days. Pigs were slaughtered on day 125. Data from the two studies were analysed as a single data set. Performance and carcass traits did not differ between treatments. Both microalgae treatment levels enriched (p < .05) Longissimus lumborum (LL) and backfat in DHA and improved (p < .05) their ratios of n-6 to n-3 fatty acids.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1111/jpn.12911 | DOI Listing |
Trop Anim Health Prod
January 2025
Animal Production Department, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt.
Sustainable agriculture approaches necessitate a concerted effort from researchers to establish paths that meet global population needs without compromising environmental resources. Goats are unique among ruminants because of their ability to adapt to some of the harshest environments around the world. Growth Hormone (GH) gene is a major regulator of muscle mass growth.
View Article and Find Full Text PDFJ Anim Sci
January 2025
Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX USA.
The number of beef × dairy animals entering feedlots has increased, but the response of beef × dairy cattle to growth-promoting implants has not been well characterized. The objective of this study was to evaluate the effects of breed type and implant administration on live performance, carcass characteristics, sera metabolites, and immunohistochemical (IHC) outcomes. Forty-eight steers (average body weight [BW] = 417±22 kg) were sorted by breed into groups of predominantly Angus (B), black-hided beef × primarily Holstein (B×D), or Holstein (D), and half of the steers within each breed type were administered a steroidal implant.
View Article and Find Full Text PDFJ Anim Physiol Anim Nutr (Berl)
January 2025
Department of Animal Nutrition, Lorestan University, Khorramabad, Iran.
This meta-analysis was performed to evaluate the effects of vitamin C (Vit C) supplementation on broiler performance, blood parameters, carcass characteristics and meat quality under heat stress. Based on searches conducted on PubMed, Scopus, Google Scholar and Web of Science, 35 studies published in authoritative journals from 1985 to 2023 were meta-analysed. Heterogeneity was explored by meta-regression analysis.
View Article and Find Full Text PDFPoult Sci
December 2024
College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan S7N 5A8, Canada. Electronic address:
This study investigated the effects and interactions among diets formulated to have high starch-to-lipid ratios (S:L), amino acid density [indicated as % digestible lysine (DigLys)], and AME on growth performance and carcass characteristics of heat stressed broilers. A {3,3} simplex lattice design was used to assess relative effects and generate predictive models. Three basal finisher diets were formulated to have the highest S:L ratio (Basal A; 20:1), DigLys (Basal B; 1.
View Article and Find Full Text PDFPoult Sci
December 2024
Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
To enhance the health and performance of poultry, novel approaches have to be created. Using appropriate nutritional interventions to enhance body physiology and thus enhance productivity is one of these approaches. The purpose of the present investigation intended to examine how growing quail physiology and growth is affected by supplementing diets with tryptophan (Trp) and/or canthaxanthin (CX).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!