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| Registros recuperados: 159 | |
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| Domínguez Martínez, Pablo Alfredo. |
| La oxidación causada por patógenos es un problema de suma importancia en animales. Pollos mixtos, de un día de edad (Cobb 500, n=624) fueron asignados al azar a uno de seis tratamientos. Como testigo se utilizó una dieta base (T; 40 mg de VE kg-1 de alimento y 1.5% de ARG). El segundo tratamiento fue la dieta base + ARG (ARG; + 0.3%). El tercer tratamiento fue la dieta base + ARG + VE (AVE; + 0.3% y + 40 mg kg-1 de alimento). El cuarto tratamiento fue la dieta base + ARG + VC (AVC; + 0.3% + 1 g kg-1 de alimento). El quinto tratamiento fue la dieta base suplementada con VE + VC (VEC; + 40 mg + 1 g kg-1 de alimento). El sexto tratamiento fue la dieta base + ARG + VE + VC (AVEC; + 0.3% + 40 mg + 1 g kg-1 de alimento). Al día 14 todos los pollitos fueron... |
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Palavras-chave: Arginina; Vitamina E; Vitamina C; Eimeria; Pollo de engorda; Arginine; Vitamin E; Vitamin C; Broiler; Ganadería; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2351 |
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| Ferraz,Patricia F. P.; Yanagi Junior,Tadayuki; Alvarenga,Talita A. C.; Reis,Gregory M.; Campos,Alessandro T.. |
| In the first week of a chick life, broilers are very sensitive to different conditions outside their thermoneutral zone. Thus, the goal of this study was to evaluate the behaviors and productive responses of broilers subjected to conditions of thermal comfort or challenge at different intensities (27, 30, 33 and 36ºC) and durations (1, 2, 3 and 4 days starting on the second day of life). In the experiment, ten minutes of images from each hour of each treatment were analyzed to evaluate the key behaviors of the birds. Similar behavior at different dry-bulb air temperatures were identified by using Ward's method of cluster analysis. These behaviors were grouped by dendograms in which the similarity of these data was qualified. Feed intake, water intake and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Grouping of data; Dendogram; Broiler; Productive responses. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600002 |
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| Seber,Rogério; Moura,Daniella; Lima,Nilsa; Massari,Juliana. |
| ABSTRACT Light is important for the physiology and zootechnical development of broilers and is characterized by the type of source defined by the spectral emission and geometry of the lamp, as well as the intensity and spatial distribution of the illuminance. The aim of this study was to verify the influence of an artificial lighting system based on tubular Light Emitting Diode (LED) lamps on the productive performance of broilers. The study was carried out in two broiler houses located in Londrina-PR. The lighting system for one of the broiler houses was composed of 52 tubular LED bulbs of 18 W powers, and the control broiler house consisted of 75 incandescent bulbs with 60 W powers. This research was divided into two parts; the first phase was evaluated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Light; Tubular light emitting diode. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000300319 |
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| Nunes,Beatriz do Nascimento; Ramos,Salvador Boccaletti; Savegnago,Rodrigo Pelicioni; Ledur,Mônica Corrêa; Nones,Kátia; Klein,Claudete Hara; Munari,Danísio Prado. |
| The objective of this study was to estimate genetic and phenotypic correlations of body weight at 6 weeks of age (BW6), as well as final carcass yield, and moisture, protein, fat and ash contents, using data from 3,422 F2 chickens originated from reciprocal cross between a broiler and a layer line. Variance components were estimated by the REML method, using animal models for evaluating random additive genetic and fixed contemporary group (sex, hatch and genetic group) effects. The heritability estimates (h²) for BW6, carcass yield and percentage of carcass moisture were 0.31 ± 0.07, 0.20 ± 0.05 and 0.33 ± 0.07, respectively. The h² for the percentages of protein, fat and ash on a dry matter basis were 0.48 ± 0.09, 0.55 ± 0.10 and 0.36 ± 0.08,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Carcass composition; Genetic correlation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000300011 |
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| Registros recuperados: 159 | |
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