ArticleAnimal bioscience2021
Response of broilers to supplementation of branched-chain amino acids blends with different valine contents in the starter period under summer conditions.
Article in Animal bioscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 15 citations in OpenAlex.
- Effects of double-low rapeseed meal on growth performance, meat quality, gut microbiota, and nitrogen excretion in Cherry Valley ducks based on low-protein dietary strategies.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Article
- Research advances in intramuscular fat deposition and chicken meat quality: genetics and nutrition.Journal of animal science and biotechnology · 2025Review
- Growth performance and carcass, gastrointestinal tract, meat quality, and serological properties of broiler chickens fed diets supplemented with tropical Açaí (Euterpe oleracea) fruit extract.Tropical animal health and production · 2025Article
- Regulatory effects of tea polysaccharides on hepatic inflammation, gut microbiota dysbiosis, and serum metabolomic signatures in beef cattle under heat stress.Frontiers in physiology · 2024Article
- Nutritional Strategies to Improve Meat Quality and Composition in the Challenging Conditions of Broiler Production: A Review.Animals : an open access journal from MDPI · 2023Review
- A review of heat stress in chickens. Part II: Insights into protein and energy utilization and feeding.Frontiers in physiology · 2022Review
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveThe objectives of this study were to compare the effects of normal and low protein content (PC) of starter diet supplemented or not with blends of branched-chain amino acids (BCAAs) on growth performance of broilers under summer conditions and to investigate whether these effects altered some quality traits and the characteristics of gastrointestinal tract.
methodsA total of 768 mixed-sex broiler chicks (Ross 308, one-d-old) with an average initial body weight (BW) of 47.6±1.03 g were allocated into six treatments with four replications in 2×3 factorial arrangement. Factors were: PC, normal (N, 22% to d 15); and low (L, 20% to d 15); and added BCAA blends, L-leucine, L-isoleucine, and L-valine at zero (0L:0I:0V); 1.0, 0.25, and 0.25 (4L:1I:1V); or 1.0, 0.25, 0.75 (4L:1I:3V) g/kg of diet. Hence, six dietary treatments were named as N0L:0I:0V, N4L:1I:1V, N4L:1I:3V, L0L:0I:0V, L4L:1I:1V, and L4L:1I:3V. Average indoor temperature and humidity were 32.8°C±1.7°C and 61.1%±4.12%, respectively.
resultsBW, feed conversion ratio (FCR) and carcass weight were not affected by PC, BCCA and their interaction (p>0.05). The L diets decreased the water holding capacity of the breast (p = 0.002) and thigh (p = 0.050) meats and dressing percentage (p = 0.005) compared to the N diets. The 4L:1I:1V diet decreased breast yield compared to the 0L:0I:0V diets (p = 0.041). The effect of PC on feed intake, mortality and gastrointestinal trait weight were depended on the L:I:V ratios under summer conditions due to interactions between factors (p<0.05). The FI and mortality of L4L:1I:1V broilers were lower than those of N4L:1I:1V birds (p<0.05).
conclusionIt was concluded that the blends of BCAAs used failed to improve performance and to promote breast yields, because diets with normal or with reduced protein supplemented or not with BCAAs up to d 15 produced a similar BW and FCR in broilers raised in hot-climate conditions.
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