|
|
|
|
|
Roll,Victor Fernando Büttow; Briz,Ricardo Cepero; Levrino,Gustavo Adolfo Maria. |
The influences of floor- and cage-rearing on egg production, egg quality and physical condition were investigated in laying hens housed in furnished cages. Two groups of 180 Isa Brown commercial layer pullets were reared in cages (CR) or floor pens (FR) and transferred to furnished cages, where their production, egg quality and physical condition was observed throughout the laying period (18-78wks of age). At 17 weeks of age, hens were placed in one of 36 furnished cages with 10 birds in each cage, each containing a nest box, perches, a dust bath, and abrasive strips. From 19 to 78 weeks of age, egg production data were collected daily. Commercial egg quality was assessed monthly. At, 19 and 78 weeks of age, claw length and feather cover were visually... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Layer pullets; Plumage; Production; Rearing system. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000500034 |
| |
|
|
Saldanha,ESPB; Mendes,AA; Pizzolante,CC; Takahashi,SE; Komiyama,CM; Garcia,RG; Balog Neto,A; Paz,ICLA; Garcia,EA; Dalanezi,JA; Quinteiro,RR. |
This study aimed at evaluating the effect of total replacement of dry corn by wet grain corn silage (WGCS) in the feed of label broilers older than 28 days of age on performance, mortality, carcass, parts, breast meat and thighs meat yields, and meat quality. A mixed-sex flock of 448 ISA S 757-N (naked-neck ISA JA Label) day-old chicks was randomly distributed in to randomized block experimental design with four treatments (T1 - with no WGCS; T2 - WGCS between 28 and 83 days; T3 - WGCS between 42 and 83 days; and T4 - WGCS between 63 and 83 days) and four replicates of 28 birds each. Birds were raised under the same management and feeding conditions until 28 days of age, when they started to have free access to paddock with pasture (at least 3m²/bird) and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Label chickens; Production; Rearing system. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000200007 |
| |
|
|
|