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Influence of forage-to-concentrate ratio on the effects of a radiata pine bark extract on methane production and fermentation using the rumen simulation technique.
Animal
December 2024
Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Campus Chillán, Chillán 3812120, Chile. Electronic address:
Climate change and food safety standards have intensified research into plant-based compounds as alternatives to dietary supplements in animal feed. These compounds can reduce enteric methane (CH) emissions and the formation of ruminal ammonia. This study investigated the effects of radiata pine bark extract (PBE) supplementation on CH production, ruminal fermentation parameters, and nutrient disappearance using the rumen simulation technique in diets with different forage-to-concentrate (F:C) ratios.
View Article and Find Full Text PDFOptimising compensatory growth in pastoral beef production systems: insights into feed efficiency, body composition, carcass characteristics and meat quality attributes.
Animal
December 2024
School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland.
Exploitation of compensatory growth (CG) is a widely practised management strategy in beef production, especially under pastoral conditions due to its potential to reduce feed costs. The aim of this experiment was to evaluate the effect of nutritional restriction during backgrounding in Angus steers slaughtered at either similar age and/or similar BW on feed efficiency, body composition, carcass characteristics and meat quality attributes under either a forage or feedlot-based finishing diet. Eighty steers (BW: 444 ± 39 kg, age: 18 ± 1 months) were blocked and randomly assigned within block to either an optimal (0.
View Article and Find Full Text PDFImpact of Fatty Acid Supplementation on Migraine Outcomes: A Systematic Review and Meta-analysis.
Nutr Rev
January 2025
Universidad Europea de Madrid, Department of Physiotherapy, Faculty of Medicine, Health and Sports, 28670 Villaviciosa de odón, Madrid, Spain.
Context: Migraines are a prevalent neurological condition that significantly impacts the quality of life. Although narrative reviews and clinical trials suggest the potential effects of fatty acid supplementation as a promising approach for migraine prophylaxis, the findings remain inconsistent.
Objective: The aim was to evaluate the efficacy of fatty acid supplementation on migraine clinical outcomes through a systematic review and meta-analysis.
BCAA interactions: how do they influence broiler performance, intestinal morphometry, lipid profile, and liver health?
Arch Anim Nutr
January 2025
Department of Animal Science, Federal University of Viçosa, Viçosa, MG, Brazil.
An experiment was conducted to assess the effects of the BCAA and their interactions on performance, carcass composition, lipid metabolism, liver health, and intestinal morphometry in broiler chickens. Male chickens ( = 1080) were randomly assigned into floor pens in a 3 × 3 factorial design with 3 dietary ratios of SID Leu:Lys (110, 150, and 190%), and 3 dietary ratios of SID Ile-Val:Lys (68-77, 78-87, and 88-97%). Performance parameters were assessed from 1 to 35 days of age.
View Article and Find Full Text PDFPrediction of microbial crude protein flow from the rumen of dairy cattle by means of dietary characteristics - a meta-analysis.
Arch Anim Nutr
January 2025
Institute of Animal Science, University of Bonn, Bonn, Germany.
Protein supply to ruminants relies mainly on the flow of microbial crude protein (MCP) from the rumen, which is commonly assumed to primarily depend on energy supply. This study evaluated this assumption with recent data and tested if ruminally fermented organic matter (FOM) was a better predictor of MCP flow than total-tract digestible organic matter (DOM) and if more variables could improve the prediction of MCP flow. A previously published data set was extended by additional studies resulting in a data set of 139 studies including 407 treatment means, typical to Central European rations.
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