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Influence of dietary amino acid reductions and Eimeria acervulina infection on growth performance and intestinal cytokine responses of broilers fed low crude protein diets
- Source :
- Poultry science. 95(11)
- Publication Year :
- 2016
-
Abstract
- Two experiments were conducted to evaluate the influence of Eimeria acervulina infection on growth performance, plasma carotenoids, and intestinal cytokine responses of broilers fed low crude protein (LCP) diets with reduced concentrations of selected amino acids (AA). Experiment 1 was conducted to validate a dietary formulation approach in which broilers were fed 1 of 5 diets including a 19.0% CP corn-soybean meal based (CSBM) diet, a LCP control diet (16.7% CP) that matched the AA profile of the CSBM diet, and 3 LCP diets with 30% reductions in standardized ileal digestible concentrations of TSAA, Lys, or Thr from 14 to 23 d post-hatch. Body weight gain and G:F were greatest (P0.05) and similar for broilers fed the CSBM and LCP control diets, whereas reductions in Thr, TSAA, and Lys each decreased (P0.05) G:F of broilers. In Experiment 2, birds were allotted to 18 treatment groups in a factorial arrangement of 9 dietary treatments × 2 infection states. Dietary treatments included a LCP control diet similar to that fed in Experiment 1 and 8 LCP diets with 40% individual reductions in TSAA, Lys, Thr, Val, Ile, Arg, Phe + Tyr, or Gly + Ser. Broilers received experimental diets from 10 d to 28 d post-hatch and were inoculated with 0 or 4.0 × 10
- Subjects :
- 0301 basic medicine
Male
medicine.medical_treatment
Eimeria
Microbiology
03 medical and health sciences
Animal science
Gene expression
medicine
Diet, Protein-Restricted
Animals
Amino Acids
Intestinal Mucosa
Carotenoid
Poultry Diseases
chemistry.chemical_classification
Meal
biology
Coccidiosis
0402 animal and dairy science
food and beverages
04 agricultural and veterinary sciences
General Medicine
medicine.disease
biology.organism_classification
040201 dairy & animal science
Animal Feed
Carotenoids
Amino acid
Eimeria acervulina
Intestines
030104 developmental biology
Cytokine
chemistry
Cytokines
Animal Science and Zoology
Animal Nutritional Physiological Phenomena
Chickens
Biomarkers
Subjects
Details
- ISSN :
- 15253171
- Volume :
- 95
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Poultry science
- Accession number :
- edsair.doi.dedup.....3cd6dd06d9fff01f1451f165df875f33