|
|
|
|
|
| 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 |
| |
|
|
| Perine,Taynara Prestes; Marcato,Simara Márcia; Furlan,Antonio Claudio; Grieser,Daiane de Oliveira; Zancanela,Vittor; Stanquevis,Caroline Espejo; Benites,Mariani Ireni; Euzébio,Tainara Ciuffi. |
| ABSTRACT An experiment was conducted to determine the required levels of supplementary vitamin D and calcium in meat-type quail (Coturnix coturnix sp) between 15 and 35 days old. The experiment was a 4 × 4 factorial design with four levels of calcium: 0.42, 0.58, 0.74, and 0.90% and four levels of vitamin D: 1,000; 2,000; 3,000; and 4,000 IU. Body weight and body weight gain increased linearly and feed conversion showed some linear improvement due to increased levels of Ca and vitamin D. The increased vitamin D levels resulted in a linear increase in feed intake. Calcium and vitamin D requirements in meat-type quail between 15 and 35 days of age is greater or equal to 0.90% Ca and greater or equal to 4,000 IU of vitamin D, probably because the experiment... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone resistance; Nutritional requirement; Quail nutrition. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001100655 |
| |
|
|
| 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 |
| |
|
|
|
