Increasing dietary phytate has a significant anti-nutrient effect on apparent ileal amino acid digestibility and digestible amino acid intake requiring increasing doses of phytase as evidenced by prediction equations in broilers [PDF]
Poultry Science, 2020 : Cobb 400, male broilers (n = 4,752) were housed in 12 pens/diet and 33 birds/pen. There were 3 levels of phytate P (0.24, 0.345, or 0.45%) and 4 phytase doses (0, 500, 1,000 or 2,000 phytase units (FTU)/kg) to evaluate the influence of phytate and ...
C.L. Walk, S.V. Rama Rao
doaj +2 more sources
Growth performance of male broiler chickens in different growth phases in response to amino acid concentrations in the pre-starter diet [PDF]
Journal of Animal Science and TechnologyAn experiment involving 720 one-day-old male broilers (Ross 308) was conducted to investigate the effects of graded levels of crude protein and standardized ileal digestible (SID) amino acids (AA) on growth performance during the pre-starter period (0 to
Su Hyun An, Changsu Kong
doaj +2 more sources
Additivity of digestible energy and nutrient concentrations in hatchery byproducts fed to nursery pigs [PDF]
Animal Bioscience, 2022 Objective The objective was to test additivity of digestible energy and nutrient concentrations in the hatchery byproduct mixture fed to nursery pigs. Methods In the previous studies, energy, phosphorus, calcium, and amino acid digestibility of infertile
Jung Yeol Sung +2 more
doaj +1 more source
Estimation of Optimal and Maximum Standardized Ileal Digestible Methionine Requirements Based on Performance for Male Broilers Aged 0 to 21 Days [PDF]
AnimalsTwo experiments were conducted with Ross 308 male broiler chickens to determine the standardized ileal digestible (SID) methionine (Met) requirement for maximum weight gain during the starter (0 to 10 days) and grower (10 to 21 days) phases.
Su-Hyun An, Changsu Kong
doaj +2 more sources
Variation among arthropod taxa in the amino acid content of exoskeleton and digestible tissue
Ecology and Evolution, 2023 Arthropod consumption provides amino acids to invertebrates and vertebrates alike, but not all amino acids in arthropods may be digestible as some are bound in the exoskeleton.
Jamie T. Reeves +5 more
doaj +1 more source
Biomarkers and De Novo Protein Design Can Improve Precise Amino Acid Nutrition in Broilers
Animals, 2022 Precision nutrition in broilers requires tools capable of identifying amino acid imbalances individually or in groups, as well as knowledge on how more digestible proteins can be designed for innovative feeding programs adjusted to animals’ dynamic ...
María Cambra-López +4 more
doaj +1 more source
Journal of Applied Poultry Research, 2023 SUMMARY: To reduce pathogenic bacteria such as Salmonella in feed and ensure a high-quality pellet, diets for broilers, turkeys, and breeders may be pelleted using high conditioning temperatures and extended times.
E. Lynch +6 more
doaj +1 more source
Journal of Applied Poultry Research, 2021 Summary: Two experiments were conducted to evaluate the effects of dietary amino acid density and exogenous protease inclusion on growth performance and amino acid digestibility in poultry.
C.N. Truelock +10 more
doaj +1 more source
Effect of Varying Levels of Dietary Tryptophan on Aggression and Abnormal Behavior in Growing Pigs
Frontiers in Veterinary Science, 2022 Body lesions, resulting from tail-biting and ear-biting, can result in decreased health and welfare in pigs. Tryptophan, an indispensable amino acid, is needed to support protein deposition, and the synthesis of the neurotransmitter serotonin, which is ...
Maggie Henry +4 more
doaj +1 more source
Journal of Applied Poultry Research, 2020 Summary: Increasing conditioning temperature and conditioning time has been considered a feed manufacture strategy to improve feed hygienics that may also affect feed production and nutritional quality.
T.P. Boltz +4 more
doaj +1 more source