Effects of lipid sources, lysophospholipids and organic acids in maize-based broiler diets on nutrient balance, liver concentration of fat-soluble vitamins, jejunal microbiota and performance
| Autor: | Ágatha Cristina de Pinho Carão, Carlos Eduardo Bellinghausen Merseguel, Maria Fernanda de Castro Burbarelli, Gustavo do Valle Polycarpo, Ricardo de Albuquerque, Valquíria Cação Cruz-Polycarpo, S R L Maganha, Julio Cezar Dadalt, Ricardo Luiz Moro de Sousa |
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| Přispěvatelé: | Universidade de São Paulo (USP), Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2016 |
| Předmět: |
Male
MILHO 040301 veterinary sciences Animal feed Lysophospholipids Biology 0403 veterinary science Butyric acid Fats chemistry.chemical_compound Random Allocation Nutrient Tallow Animals Food science Lactic Acid Acetic Acid chemistry.chemical_classification 0402 animal and dairy science Broiler Fatty acid 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Animal Feed Diet Soybean Oil Fat-Soluble Vitamin Jejunum chemistry Liver Dietary Supplements Butyric Acid lipids (amino acids peptides and proteins) Animal Science and Zoology Animal Nutritional Physiological Phenomena Chickens Food Science |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2018-12-11T17:23:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-11-01 Three experiments with a 2 × 2 × 2 factorial arrangement were conducted to evaluate maize-based diets for broilers containing different lipid sources [soybean oil (S) or beef tallow (T)] supplemented with or without lysophospholipids and organic acids on nutrient balance (Experiment I, evaluation period of 10–14 d), on liver concentration of fat-soluble vitamins, on jejunal microbiota (Experiment II, sampling at d 14) and on performance (Experiment III, accumulated periods of 1–14, 1–21 and 1–42 d). A total of 1344 male chicks were used. In each experiment, the birds were allotted in a completely randomised design with 8 replications. The lysophospholipids were mainly composed of lysolecithins and the organic acids blend was constituted by lactic (40%), acetic (7%) and butyric acids (1%). An interaction between lipid sources and lysophospholipids was observed on faecal apparent digestibility of lipid (ADL), which improved with lysophospholipids addition in T diets. Broilers fed on S had higher ADL and faecal apparent digestibility of nitrogen-corrected gross energy (ADGEN). It was not possible to demonstrate a significant treatment effect on the liver concentration of vitamins A and E, even with the differences in fatty acid profile between S and T. Enterobacteria values were below the detection threshold. Lysophospholipid supplementation reduced gram-positive cocci in T-fed birds. S diets promoted lower total anaerobe counts compared with T diets, independent of additives. S diets increased BW gain and feed:gain ratio in all evaluation periods. Lysophospholipids and organic acids improved feed:gain ratio at 1–21 d in T diets. Furthermore, main effects were observed for lysophospholipids and organic acids at 1–42 d, which increased BW gain and improved feed:gain ratio, respectively. No positive interactions between additives were found. Department of Animal Nutrition and Production (VNP) University of São Paulo (FMVZ-USP) Department of Veterinary Medicine University of São Paulo (FZEA-USP) São Paulo State University (UNESP) São Paulo State University (UNESP) |
| Databáze: | OpenAIRE |
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