Fosfatos sedimentarios para la alimentación de aves de postura. 2. Fase de postura
Rawrock phosphates in laying hens' feeding. 2. Hens in egg production
| dc.creator | Godoy, Susmira | |
| dc.creator | Chicco, Claudio F. | |
| dc.date | 2009-03-26T14:05:54Z | |
| dc.date | 2009-03-26T14:05:54Z | |
| dc.date | 2009-03-26T14:05:54Z | |
| dc.date.accessioned | 2017-03-03T14:19:13Z | |
| dc.date.available | 2017-03-03T14:19:13Z | |
| dc.identifier | 0798-2259 | |
| dc.identifier | http://www.saber.ula.ve/handle/123456789/27437 | |
| dc.identifier | 199102ZU46 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/211014 | |
| dc.description | Para evaluar el efecto de fuentes sedimentarias de fósforo en la alimentación de aves en fase de postura, sobre la respuesta productiva y características del tejido óseo, 420 pollonas de 19 semanas de edad, fueron distribuidas, según un diseño completamente aleatorizado, en siete grupos de 60 aves cada uno. Tres grupos con fosfato dicálcico en fase de prepostura y, en postura, fosfatos de yacimientos, Riecito (D/R), Monte Fresco (D/M) y Navay (D/N), y tres grupos los mismos fosfatos (RIO; MONTE; NAVAY), en prepostura y postura, utilizándose como testigo un fosfato dicálcico (DICAL). Las aves consumieron dietas de tipo maíz-soya, isoproteicas (17% PC), isocalóricas (2800 kcal EM/kg), isofosfóricas (0,62% P total) e isocálcicas (3,5%). El peso (g/ave), a las 42 semanas de edad, fue más elevado (P<0,05) para DICAL (2444), seguido por D/R (2025). D/N (1898) y RIO (1951) y éstos a su vez superiores (P<0,05), a las aves alimentadas con D/M (1781), NAVAY (1785) y MONTE (1810). El 50% de la producción de huevos fue alcanzado a las 22,5 semanas de edad para DICAL, a las 23 para D/R y D/N, 24 para D/M y RIO y 25 semanas para NAVAY y MONTE. Las cenizas (%), como promedio de las edades, en el tejido óseo fue de 56,5; 54,3; 56,2; 55,0; 56,7; 55,6 y 56,7 para DICAL, D/R, D/M, D/N, RIO, MONTE y NAVAY, respectivamente. La acumulación de flúor (ppm) en hueso fue mayor (P<0,05) para MONTE (11040) y NAVAY (10080), intermedia para RIO (7380), D/M (6800), D/N (6300), D/R (4380) y para DICAL 1320ppm. Las aves alimentadas con DICAL tuvieron respuestas productivas y características del tejido óseo superiores a las que consumieron RIO y D/R, D/M y D/N y menores respuestas para MONTE y NAVAY, lo que estuvo asociado a mayores concentraciones de flúor en el tejido óseo. | |
| dc.description | 12 - 21 | |
| dc.description | Bimestral | |
| dc.description | To evaluate the effect of sedimentary phosphate sources in the feeding of laying hens, on the productive performance and characteristic of the tissue, 420 chicks, of 19 weeks of age, were distributed, in a totally randomized design, to seven groups of 60 birds each one. Three groups consumed dicalcium phosphate in laying period and, the phosphates of Riecito (D/R), Monte Fresco (D/M) and Navay (D/N) in the laying period; three the same raw rock phosphates (RIO, MONTE, NAVAY), using dicalcium phosphate of high purity (DICAL) as a control, in both phases. The birds were fed with soy-corn diets, with the same content of protein (17% PC), energy (2800 kcal EM/kg). Total phosphorus (0.62% P) and calcium (3.5%). Intake and body weight measurements were carried out and four birds/treatment of the 42 weeks of age were sacrificed for the extraction of the left tibia to determine the ash, calcium, phosphorus and fluorine content. The weight (g/bird), at 42 weeks of age, was higher (P<0.05) for DICAL (2444), followed by D/R (2025). D/N (1898) and RIO (1951) and these in turn were higher than (P<0.05) the birds fed with D/M (1781), NAVAY (1785) and MONTE (1810). The intake (g/bird/day) showed similar tendency of the weight of the animals, being higher for DICAL (117), RIO (110), D/R (106), followed by D/N (99), D/M (96), NAVAY (99) and lastly MONTE (93). The egg production intensity (%) was higher (P<0.05) for DICAL (72.7), followed by DIR (68.3), D/N (67.9) and RIO (66.6) but lower for D/M (62.2), MONTE (58.4) and NAVAY (53.0). The 50% of egg production were reached at the 22.5 weeks of age in the birds that consumed DICAL, at 23 weeks for D/R and D/N, at 24 weeks for D/M and RIO and al 25 weeks for NAVAY and MONTE. The concentration of ash (%), as an average of the ages, in the bone tissue was of 56.5, 54.3, 56.2, 55.0, 56.7, 55.6 and 56.7, for DICAL, D/R, D/M, D/N, RIO, MONTE and NAVAY, respectively. Similarly, the phosphorus content (mg/cc) in the bone tissue was higher (P<0.05) for DICAL (59.1), followed by MONTE (56.9), NAVAY (55.9), RIO (55.4), D/R (55.0) and lower for D/M (52.6) and D/N (52.2). The accumulation of fluorine (ppm) in bone was higher (P<0.05) for MONTE (11040) and NAVAY (10080), intermediate for RIO (7380), D/M (6800), D/N (6300), D/R (4380) and lower for DICAL (1320). The birds fed with DICAL had productive performance and characteristic of bono tissue higher than those fed with RIO and D/R, D/M and D/N and lower for MONTE and NAVAY, associated with high concentrations of fluorine in the bone tissue. | |
| dc.subject | Fosfatos sedimentarios | |
| dc.subject | Fósforo | |
| dc.subject | Biodisponibilidad | |
| dc.subject | Aves | |
| dc.subject | Universidad del Zulia (LUZ) | |
| dc.subject | Universidad de Los Andes (ULA) | |
| dc.subject | Raw rocks phosphates | |
| dc.subject | Phosphorus | |
| dc.subject | Availability | |
| dc.subject | Birds | |
| dc.subject | Revista Científica | |
| dc.subject | Revistas | |
| dc.title | Fosfatos sedimentarios para la alimentación de aves de postura. 2. Fase de postura | |
| dc.title | Rawrock phosphates in laying hens' feeding. 2. Hens in egg production | |
| dc.type | Artículos de revistas |