19 documents found, page 1 of 2
Apparent calcium retention and digestibility coefficients of limestone with dif...
Diana,Thiago Ferreira; Calderano,Arele Arlindo; Rostagno,Horácio Santiago; Marques,Maria Rita de Lima; Tavernari,Fernando de Castro; Veroneze,RenataABSTRACT Apparent calcium (Ca) retention and digestibility coefficients are affected by limestone particle size in the diet of laying hens. This study aimed to determine the apparent retention and digestibility coefficients of Ca in limestone of different particle sizes in laying hens. The study comprised 288 Lohmann Brown laying hens (50 weeks of age; 1,964 ± 98 g) distributed in a completely randomized experi...
Purified lignin supplementation on the performance and antioxidant status of br...
Nunes,Rayanne Andrade; Albino,Luiz Fernando Teixeira; Campos,Paulo Henrique Reis Furtado; Salgado,Hallef Rieger; Borges,Samuel OliveiraABSTRACT The objective of this study was to evaluate the effects of dietary supplementation of purified lignin on the performance, relative organ weights, serum metabolites, and gene expression profiles of broiler chickens subjected to cyclic heat stress (HS). At 22 days old, 280 broilers were distributed in a completely randomized design with four treatments, ten repetitions, and seven birds per experimental u...
Effect of phytase and protease combination on performance, metabolizable energy...
Bernardes,Romário Duarte; Oliveira,Carlos Henrique de; Calderano,Arele Arlindo; Ferreira,Rafael de Sousa; Dias,Kelly Morais MaiaABSTRACT Three experiments were carried out to evaluate the effect of dietary combination of different enzymes (phytase + protease) on performance, metabolizable energy, and amino acid digestibility of broiler chickens fed diets with nutritional reduction. A total of 1,400, 336, and 384 male chickens were distributed in a completely randomized design, in the experiments of performance, metabolism, and digestibi...
Effects of dietary nucleotide supplementation on growth performance and physiol...
Kreuz,Bruna Strieder; Rocha,Gabriel Cipriano; Campos,Paulo Henrique Reis Furtado; Fonseca e Silva,Fabyano; Hannas,Melissa IzabelABSTRACT The objective of this study was to evaluate the effects of dietary nucleotide supplementation on growth performance, serum immunoglobulin G (IgG) and uric acid levels, immune-related organs, and intestinal morphometric parameters of broiler chickens under pre- and post-inflammatory challenge with lipopolysaccharide (LPS). Ninety-six seven-day-old male broiler chicks were randomized in a 2×2 factorial d...
Effects of corn processing on piglet performance and intestinal parameters
Scalco,Tiago; Valini,Graziela Alves da Cunha; Silva,Caroline Brito da; Calderano,Arele Arlindo; Rodrigues,Gustavo de AmorimABSTRACT The objective of the present study was to compare the effects of corn processing on performance and intestinal parameters of weanling piglets. To accomplish our goal, 42 piglets (21 days-old, 7.18±1.0 kg body weight) were randomly allocated (seven pens/treatment; three pigs/pen) to one of two treatments: ground corn – corn ground through a hammer mill with a 1.0-mm screen after being ground by a hammer...
Decreased levels of vitamin D3 and supplementation with 1,25-dihydroxyvitamin D...
Alves,Osvanira dos Santos; Calixto,Ligia Fatima Lima; Araujo,Alexandre Herculano Borges; Torres-Cordido,Karoll Andrea Alfonso; Reis,Túlio LeiteABSTRACT: An experiment was performed to evaluate the effect of decreased levels of vitamin D3 in the premix and 1,25-dyhydroxyvitamin D3-glycoside (1,25(OH)2D3-glycoside) supplementation on performance, carcass yield and bone quality in 42d old broilers. Seven-d-old male chickens Cobb500® were distributed in a randomized design with six treatments: a control diet with inclusion of vitamin D3 in the premix, wit...
EXIGÊNCIA DE METIONINA + CISTINA PARA FRANGAS DE REPOSIÇÃO NA FASE INICIAL (1 A...
D´Agostini,Priscila; Gomes,Paulo Cezar; Mello,Heloisa Helena de Carvalho; Calderano,Arele Arlindo; Sá,Luciano Moraes; Rostagno,Horacio SantiagoResumo Objetivou-se determinar a exigência de metionina + cistina total para frangas na fase inicial e verificar seu efeito sobre a fase de postura. Na primeira fase experimental, 720 aves (50% Lohmann LSL e 50% Lohmann Brown) com uma semana de idade foram distribuídas em delineamento experimental inteiramente casualizado, em esquema fatorial 5 x 2 (níveis de met + cis e linhagens), com quatro repetições e 18 a...
NÍVEIS DE CÁLCIO E RELAÇÃO CÁLCIO: FÓSFORO EM RAÇÕES PARA POEDEIRAS LEVES DE 24...
Vellasco,Cassia Rampini; Gomes,Paulo Cezar; Donzele,Juarez Lopes; Rostagno,Horacio Santiago; Calderano,Arele Arlindo; Mello,Heloisa Helena de CarvalhoResumo Objetivou-se determinar a exigência nutricional de cálcio e a melhor relação cálcio:fósforo em rações para poedeiras leves de 24 a 40 semanas de idade. Foram utilizadas 324 aves Hy-Line W-36, distribuídas em delineamento inteiramente casualizado, esquema fatorial 3x3, sendo três níveis de cálcio (3,9; 4,2 e 4,5 %) e três relações cálcio/fósforo (9,3; 10,53 e 12,12/1), totalizando nove tratamentos, seis r...
REPLACEMENT OF CHOLINE CHLORIDE BY A VEGETAL SOURCE OF CHOLINE IN DIETS FOR BRO...
Calderano,Arele Arlindo; Nunes,Ricardo Vianna; Rodrigueiro,Ramalho José Barbosa; César,Ricardo AndradeThe objective of this study was to evaluate the use of a vegetal source of choline as a replacement of choline chloride in the diet for broilers from one to 21 and 22 to 42 days of age. In the first experiment, we used 1500 Cobb male broilers at one day of age, distributed in a completely randomized design with ten treatments, five repetitions and 30 birds per experimental unit. In the second experiment, we use...
Diet supplementation with phytase on performance of broiler chickens
Lelis,Guilherme Rodrigues; Albino,Luiz Fernando Teixeira; Calderano,Arele Arlindo; Tavernari,Fernando de Castro; Rostagno,Horacio SantiagoThe assay was carried out to determine the effect of phytase supplementation on performance of broilers from 1 to 21 and 1 to 40 days of age. Twelve hundred and fifty male broilers (Ross) were distributed in a randomized experimental design, with five treatments, 10 repetitions and 25 birds per experimental unit. The treatments consisted of evaluating the phytase supplementation in diets with reductions in nutr...