Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina
The effect of suckling restriction with nasal flaps on Angus and Creole calves and dam’s performance fixed time artificially inseminated (FTAI) in an arid zone of Argentina was evaluated. The first experiment was carried out with 146 multiparous cows with calf at foot and 76.2±3.0 days postpartum, assigned to four treatments: Angus cows (n=37) and Creole cows (n=37) with restricted suckling (RS, calves with nasal flaps for 14 days) and Angus (n=35) and Creole (n=37) cows with non-restricted suckling calves (Control, C). On Day 0, the cows received an intravaginal device with progesterone for 8 days and nasal flaps were placed to calves. The FTAI was performed on Day 10 and the pregnancy diagnosis was made at 35 days by ultrasound. In calves, weight was measured on Days 0 and 14 and at weaning (6 months of age). The pregnancy rate was similar between treatments (RS=51.0%; C=53.0%), regardless of breed. At weaning, calves in treatment C were 12.2 kg heavier than calves in RS. The second experiment was performed with 109 multiparous Angus cows with calf at foot with 59.9 ± 0.7 days postpartum, assigned to treatments RS and C. There was no effect on pregnancy rate (RS=66.0%; C=72.0%) and calves from treatment C were 8.6 kg heavier at weaning than those from RS. The results showed that in multiparous cows, the restriction of suckling combined with a hormonal treatment for FTAI does not improve the pregnancy rate and negatively affects the weight of the calves at weaning.
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
2020
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Brunello, Gabriela E. Manes, Jorgelina Ávila, Roxana E. Vera, Carlos N. Vera, Tomás A. Tessi, José M. Cabral, Dardo Aller, Juan Florencio |
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Brunello, Gabriela E. Manes, Jorgelina Ávila, Roxana E. Vera, Carlos N. Vera, Tomás A. Tessi, José M. Cabral, Dardo Aller, Juan Florencio Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina |
| author_facet |
Brunello, Gabriela E. Manes, Jorgelina Ávila, Roxana E. Vera, Carlos N. Vera, Tomás A. Tessi, José M. Cabral, Dardo Aller, Juan Florencio |
| author_sort |
Brunello, Gabriela E. |
| title |
Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina |
| title_short |
Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina |
| title_full |
Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina |
| title_fullStr |
Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina |
| title_full_unstemmed |
Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina |
| title_sort |
effect of suckling restriction with nasal flaps on angus and criolla calf and dam performance inseminated at fixed time in the arid region of argentina |
| description |
The effect of suckling restriction with nasal flaps on Angus and Creole calves and dam’s performance fixed time artificially inseminated (FTAI) in an arid zone of Argentina was evaluated. The first experiment was carried out with 146 multiparous cows with calf at foot and 76.2±3.0 days postpartum, assigned to four treatments: Angus cows (n=37) and Creole cows (n=37) with restricted suckling (RS, calves with nasal flaps for 14 days) and Angus (n=35) and Creole (n=37) cows with non-restricted suckling calves (Control, C). On Day 0, the cows received an intravaginal device with progesterone for 8 days and nasal flaps were placed to calves. The FTAI was performed on Day 10 and the pregnancy diagnosis was made at 35 days by ultrasound. In calves, weight was measured on Days 0 and 14 and at weaning (6 months of age). The pregnancy rate was similar between treatments (RS=51.0%; C=53.0%), regardless of breed. At weaning, calves in treatment C were 12.2 kg heavier than calves in RS. The second experiment was performed with 109 multiparous Angus cows with calf at foot with 59.9 ± 0.7 days postpartum, assigned to treatments RS and C. There was no effect on pregnancy rate (RS=66.0%; C=72.0%) and calves from treatment C were 8.6 kg heavier at weaning than those from RS. The results showed that in multiparous cows, the restriction of suckling combined with a hormonal treatment for FTAI does not improve the pregnancy rate and negatively affects the weight of the calves at weaning. |
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
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2020 |
| url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16873 |
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oai:ojs.csi.unmsm:article-168732020-09-29T18:55:38Z Effect of suckling restriction with nasal flaps on Angus and Criolla calf and dam performance inseminated at fixed time in the arid region of Argentina Efecto de la restricción del amamantamiento con tablilla nasal sobre la productividad de terneros y vacas Angus y Criolla inseminadas a tiempo fijo en una zona árida de Argentina Brunello, Gabriela E. Manes, Jorgelina Ávila, Roxana E. Vera, Carlos N. Vera, Tomás A. Tessi, José M. Cabral, Dardo Aller, Juan Florencio fixed-time artificial insemination suckling nasal plates Angus Creole reproduction inseminación artificial a tiempo fijo amamantamiento tablilla nasal Angus criollo reproducción The effect of suckling restriction with nasal flaps on Angus and Creole calves and dam’s performance fixed time artificially inseminated (FTAI) in an arid zone of Argentina was evaluated. The first experiment was carried out with 146 multiparous cows with calf at foot and 76.2±3.0 days postpartum, assigned to four treatments: Angus cows (n=37) and Creole cows (n=37) with restricted suckling (RS, calves with nasal flaps for 14 days) and Angus (n=35) and Creole (n=37) cows with non-restricted suckling calves (Control, C). On Day 0, the cows received an intravaginal device with progesterone for 8 days and nasal flaps were placed to calves. The FTAI was performed on Day 10 and the pregnancy diagnosis was made at 35 days by ultrasound. In calves, weight was measured on Days 0 and 14 and at weaning (6 months of age). The pregnancy rate was similar between treatments (RS=51.0%; C=53.0%), regardless of breed. At weaning, calves in treatment C were 12.2 kg heavier than calves in RS. The second experiment was performed with 109 multiparous Angus cows with calf at foot with 59.9 ± 0.7 days postpartum, assigned to treatments RS and C. There was no effect on pregnancy rate (RS=66.0%; C=72.0%) and calves from treatment C were 8.6 kg heavier at weaning than those from RS. The results showed that in multiparous cows, the restriction of suckling combined with a hormonal treatment for FTAI does not improve the pregnancy rate and negatively affects the weight of the calves at weaning. Se evaluó el efecto de la restricción del amamantamiento con tablilla nasal sobre la productividad de terneros y vacas Angus y Criolla con inseminación artificial a tiempo fijo (IATF) en una zona árida de Argentina. El primer experimento se hizo con 146 vacas multíparas con cría al pie en pastoreo y con 76.2±3.0 días posparto, asignadas a cuatro tratamientos: vacas Angus (n=37) y Criolla (n=37) con amamantamiento restringido (AR, terneros con tablilla nasal durante 14 días) y vacas Angus (n=35) y Criolla (n=37) con terneros con amamantamiento ad libitum (Control, C). El Día 0, las vacas recibieron un dispositivo intravaginal con progesterona durante 8 días y a los terneros se les colocó la tablilla nasal. La IATF se realizó el Día 10 y el diagnóstico de gestación se realizó a los 35 días por ultrasonografía. En los terneros se determinó el peso a los Días 0, 14 y al destete (6 meses de edad). El porcentaje de preñez fue similar entre tratamientos (AR=51.0%; C=53.0%), independientemente de la raza. Al destete, los terneros del tratamiento C fueron 12.2 kg más pesados que los terneros del AR. El segundo experimento se hizo con 109 vacas Angus multíparas con cría al pie con 59.9±0.7 días posparto, asignadas a los tratamientos AR y C. No hubo efecto sobre el porcentaje de preñez (AR=66.0%; C=72.0%) y los terneros del tratamiento C fueron 8.6 kg más pesados al destete que los del AR. Los resultados demostraron que en vacas multíparas, la restricción del amamantamiento combinado con un tratamiento hormonal para IATF no mejora el porcentaje de preñez y afecta negativamente el peso de los terneros al destete. Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria 2020-09-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article application/pdf https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16873 10.15381/rivep.v31i3.16873 Revista de Investigaciones Veterinarias del Perú; Vol. 31 No. 3 (2020); e16873 Revista de Investigaciones Veterinarias del Perú; Vol. 31 Núm. 3 (2020); e16873 1682-3419 1609-9117 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16873/15829 Derechos de autor 2020 Gabriela E. Brunello, Jorgelina Manes, Roxana E. Ávila, Carlos N. Vera, Tomás A. Vera, José M. Tessi, Dardo Cabral, Juan Florencio Aller https://creativecommons.org/licenses/by-nc-sa/4.0 |