: Sexual maturity and associated indicators in two genotypes of hens under two feeding programs
The aim of the present study was to evaluate body weight, corporal condition, zoometric indicators and age at sexual maturity in two genotypes of Campero INTA breeders under two raising feeding programs. We worked with 400 pullets from 2 genotypes (synthetic E and the hybrid ES*A) that received two...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Universidad Nacional del Nordeste
2021
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/vet/article/view/4734 |
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I48-R154-article-47342025-02-12T21:59:23Z : Sexual maturity and associated indicators in two genotypes of hens under two feeding programs Madurez sexual e indicadores asociados en dos genotipos de gallinas bajo diferentes programas de alimentación Sanz, P. Sindik, M. Fernández, R. Revidatti, F. gallinas alimentación reproducción manejo restricción hens poultry reproduction management restriction The aim of the present study was to evaluate body weight, corporal condition, zoometric indicators and age at sexual maturity in two genotypes of Campero INTA breeders under two raising feeding programs. We worked with 400 pullets from 2 genotypes (synthetic E and the hybrid ES*A) that received two nutritional levels (control and treated) between weeks 5 and 22. At 22 weeks a statistically significant interaction was observed (p<0,0001) for body weight. In the control group the birds of the ES*A genotype were heavier than the population E (ES*A 2,288 g vs. E 2,133 g), while in the treated group the birds of the genotype E were heavier than the population ES*A (ES*A 2,313 g vs. E 2,348 g). The comb index recorded significant differences between genotypes (p<0.0001) and feeding programs (p<0.0001). The feeding program induced an advance of the onset to sexual maturity in days for both populations (p=0.009), with values of 165 ± 2.83 (ES*A Control), 156 ± 2.83 (ES*A Treated), 164 ± 0.00 (E Control) and 157 ± 2.83 (E Treated). We concluded that different food assignments during the raising period impact on the body weight and the zoometric indicators in the maternal genotypes of the Campero INTA chicken and its crossings, with marked differences in the degree of integration between body weight and reproductive development between both genotypes. The higher allocation produces an advance at the entrance of sexual maturity. El objetivo del presente estudio fue evaluar el peso, la condición corporal, los indicadores zoométricos y la edad a la madurez sexual en dos genotipos de gallinas reproductoras Campero INTA, bajo dos programas de alimentación en cría y recría. Se trabajó con 400 gallinas pertenecientes a 2 genotipos (sintética E y el híbrido ES*A) que recibieron dos planes nutricionales (control y tratado) entre las semanas 5 y 22. A las 22 semanas se observó una interacción estadísticamente significativa (p<0,0001) para el peso corporal. En el grupo control las aves del genotipo ES*A fueron más pesadas que la población E (ES*A 2.288 g vs E 2.133 g), mientras que en el grupo tratado las aves del genotipo E fueron más pesadas que la población ES*A (ES*A 2.313 g vs E 2.348 g). El índice de cresta registró diferencias significativas entre genotipos (p<0,0001) y programas de alimentación (p<0,0001). El programa de alimentación indujo un adelantamiento de la entrada a la madurez sexual en días para ambas poblaciones (p=0,009), con valores de 165±2,83 (ES*A Control), 156±2,83 (ES*A Tratado), 164±0,00 (E Control) y 157±2,83 (E Tratado). Se concluye que diferentes asignaciones de alimento durante las etapas de cría y recría impactan sobre el peso corporal y los indicadores zoométricos en los genotipos maternos del pollo Campero INTA y sus cruzamientos, con diferencias marcadas en el grado de integración entre peso corporal y desarrollo reproductivo entre ambos genotipos. La mayor asignación produce un adelantamiento a la entrada de la madurez sexual. Universidad Nacional del Nordeste 2021-04-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/4734 10.30972/vet.3124734 Revista Veterinaria; Vol. 31 Núm. 2 (2020); 142-145 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/4734/4433 Derechos de autor 2021 P. Sanz, M. Sindik, R. Fernández, F. Revidatti https://creativecommons.org/licenses/by-nc/4.0 |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-154 |
| container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| topic |
gallinas alimentación reproducción manejo restricción hens poultry reproduction management restriction |
| spellingShingle |
gallinas alimentación reproducción manejo restricción hens poultry reproduction management restriction Sanz, P. Sindik, M. Fernández, R. Revidatti, F. : Sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| topic_facet |
gallinas alimentación reproducción manejo restricción hens poultry reproduction management restriction |
| author |
Sanz, P. Sindik, M. Fernández, R. Revidatti, F. |
| author_facet |
Sanz, P. Sindik, M. Fernández, R. Revidatti, F. |
| author_sort |
Sanz, P. |
| title |
: Sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| title_short |
: Sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| title_full |
: Sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| title_fullStr |
: Sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| title_full_unstemmed |
: Sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| title_sort |
: sexual maturity and associated indicators in two genotypes of hens under two feeding programs |
| description |
The aim of the present study was to evaluate body weight, corporal condition, zoometric indicators and age at sexual maturity in two genotypes of Campero INTA breeders under two raising feeding programs. We worked with 400 pullets from 2 genotypes (synthetic E and the hybrid ES*A) that received two nutritional levels (control and treated) between weeks 5 and 22. At 22 weeks a statistically significant interaction was observed (p<0,0001) for body weight. In the control group the birds of the ES*A genotype were heavier than the population E (ES*A 2,288 g vs. E 2,133 g), while in the treated group the birds of the genotype E were heavier than the population ES*A (ES*A 2,313 g vs. E 2,348 g). The comb index recorded significant differences between genotypes (p<0.0001) and feeding programs (p<0.0001). The feeding program induced an advance of the onset to sexual maturity in days for both populations (p=0.009), with values of 165 ± 2.83 (ES*A Control), 156 ± 2.83 (ES*A Treated), 164 ± 0.00 (E Control) and 157 ± 2.83 (E Treated). We concluded that different food assignments during the raising period impact on the body weight and the zoometric indicators in the maternal genotypes of the Campero INTA chicken and its crossings, with marked differences in the degree of integration between body weight and reproductive development between both genotypes. The higher allocation produces an advance at the entrance of sexual maturity. |
| publisher |
Universidad Nacional del Nordeste |
| publishDate |
2021 |
| url |
https://revistas.unne.edu.ar/index.php/vet/article/view/4734 |
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| first_indexed |
2025-05-17T05:10:11Z |
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2025-05-17T05:10:11Z |
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