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| Cruz,Carlos Eduardo Braga; Freitas,Ednardo Rodrigues; Farias,Nadja Naiara Pereira; Xavier,Regina Patrícia de Souza; Lima,Jayron dos Santos Correia; Sá,Newton Lima; Braz,Nádia de Melo; Bezerra,Roseane Madeira. |
| The effects of neutral detergent fiber levels (NDF) (145, 165, 185 g/kg) were assessed on the bone quality of light-weight and medium-weight laying hens. Eight hundred and forty laying hens were distributed in a completely randomized design in a 2 × 3 factorial arrangement (two strains and three NDF levels) with four replications of 35 birds. At the end of the growth phase, birds were transferred to a laying shed in the same experimental design and each experimental plot consisted of 14 birds. For bone assessment, two birds were selected per plot in the 17th week and one bird in the 35th week for slaughter. After slaughter, drumstick and thigh (legs) were removed and after deboning of the femur and tibia, taken to measurement of their length, weight,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feedstuff; Bone resistance; Seedor index. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900010 |
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| Farias,Maria Rogervânia Silva de; Bastos-Leite,Silvana Cavalcante; Moura,Constância Pontes; Costa,Adailton Camêlo; Abreu,Cláudia Goulart de; Sena,Thaís Lucas de. |
| ABSTRACT Two trials were carried out to evaluate the effect of groups of organic minerals with different chemical characteristics on the performance, egg quality, biometry of digestive organs, and bone quality of laying hens in the first and second laying cycles. In the first cycle, 180 layers at 72 weeks were used in a completely randomized design (CRD) with four treatments and five replicates with nine birds each. In the second cycle, 216 layers at 94 weeks of age were used in a CRD with four treatments and six replicates with nine birds each. Birds were fed the following diets: treatment 1 - basal diet (inorganic minerals); treatment 2 - basal diet + amino acid chelated minerals (Cu, Fe, Mn, and Zn) + selenium yeast; treatment 3 - basal diet +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone resistance; Chelated amino acid; Laying; Seedor index. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100501 |
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| Lima,Raffaella Castro; Freitas,Ednardo Rodrigues; Gomes,Herbenson Marques; Cruz,Carlos Eduardo Braga; Fernandes,Danilo Rodrigues. |
| ABSTRACT The objective of this study was to evaluate the performance of broiler chickens reared at two stocking densities and coir litter with different height. A total of 522 one-day male chicks were distributed in a completely randomized design in a 3×2 factorial arrangement, with three litter height (5, 10 and 15 cm) and two densities (10 and 13 birds/m2), with six triplicates. The experimental period lasted 42 days, evaluating pH and litter moisture; performance; carcass traits; bone quality; and intensities of breast, hock and footpad lesions in the birds. Regarding the effect of density, a significant influence was observed only on performance, wherein the birds reared at the density of 13 birds/m2 showed lower intake and weight gain and better feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seedor index; Bone quality; Carcass yield; Poultry litter. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300519 |
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| Almeida Paz,ICL; Mendes,AA; Quinterio,RR; Vulcano,LC; Ballarin,AW; Takahashi,SE; Garcia,RG; Komiyama,CM; Balog,A; Pelícia,K; Wescheler,FS; Scudeller,PSO. |
| This study was carried out at Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, SP, Brazil, and evaluated bone quality in broiler breeders. Twenty-three families of Ross broiler breeders were housed in 5.0-m² pens. The families were comprised of 13 females and one male at the onset of the experimental period. The mean number of females per family was 9.34 at the end of the trial. The feeding program and management followed strain guidelines (Agroceres Ross, 2003). Bone analyses were performed in the right tibia and femur using optical radiographic densitometry at 4, 8, 12, 15, 20, 24, 30, 35, 42, 47 and 52 weeks of rearing. Trap nests were used to collect eggs from the breeders two weeks before and after the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone density; Broiler breeders; Eggshell quality; Optical densitometry; Seedor index. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100005 |
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