Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development
This study investigated the impact of the age at which heifers conceive for the first time on the growth and reproductive development of their female offspring. A total of seven heifers pregnant at 15 months of age (15M), nine heifers pregnant at 27 months of age (27M) and seven multiparous pregnant...
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
Elsevier
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/18345 https://www.sciencedirect.com/science/article/pii/S2772694024000128 https://doi.org/10.1016/j.anopes.2024.100072 |
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| author | Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Long, Nathan M. Maresca, Sebastian |
| author_browse | Long, Nathan M. Lopez Valiente, Sebastian Maresca, Sebastian Rodriguez, Alejandro Martin |
| author_facet | Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Long, Nathan M. Maresca, Sebastian |
| author_sort | Lopez Valiente, Sebastian |
| collection | INTA Digital |
| description | This study investigated the impact of the age at which heifers conceive for the first time on the growth and reproductive development of their female offspring. A total of seven heifers pregnant at 15 months of age (15M), nine heifers pregnant at 27 months of age (27M) and seven multiparous pregnant cows (Adult) were used in the present trial. All dams were pregnant by AI from a single sire and managed in a single group during gestation, lactation and rearing stages. After weaning heifer calves were stocked on natural pastures. Progeny of heifers that gestated for the first time at different ages did not present differences in growth; however, progeny of 15 and 27M dams had reduced BW, longissimus muscle area and 12th fat thickness compared to progeny of adult dams (P < 0.05). Diameter of the largest follicle was greater in progeny born to Adult compared to progeny born to 15 and 27M (P = 0.04). Reproductive tract score (RTS) in heifers born to Adult at 399 days of age was greater compared to heifers born to 27M, and this category presented greater development than heifers born to 15M (P = 0.02). At 435 days of age, the heifers born to Adult had a greater percentage defined as pubertal compared to the progeny of 15 and 27M (P = 0.04). At 495 days of age, the weight of uterus, ovaries and corpora lutea were not affected by the age of dams at calving (P > 0.25). These data indicated that the age at which heifers received their first service affects female offspring growth RTS at early ages, but it does not have any impact in organ development after diet with a high energy level. |
| format | Artículo |
| id | INTA18345 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA183452024-07-01T14:06:57Z Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Long, Nathan M. Maresca, Sebastian Ganado Bovino Gestación Destete Período Postdestete Crecimiento Cattle Pregnancy Weaning Postweaning Period Growth This study investigated the impact of the age at which heifers conceive for the first time on the growth and reproductive development of their female offspring. A total of seven heifers pregnant at 15 months of age (15M), nine heifers pregnant at 27 months of age (27M) and seven multiparous pregnant cows (Adult) were used in the present trial. All dams were pregnant by AI from a single sire and managed in a single group during gestation, lactation and rearing stages. After weaning heifer calves were stocked on natural pastures. Progeny of heifers that gestated for the first time at different ages did not present differences in growth; however, progeny of 15 and 27M dams had reduced BW, longissimus muscle area and 12th fat thickness compared to progeny of adult dams (P < 0.05). Diameter of the largest follicle was greater in progeny born to Adult compared to progeny born to 15 and 27M (P = 0.04). Reproductive tract score (RTS) in heifers born to Adult at 399 days of age was greater compared to heifers born to 27M, and this category presented greater development than heifers born to 15M (P = 0.02). At 435 days of age, the heifers born to Adult had a greater percentage defined as pubertal compared to the progeny of 15 and 27M (P = 0.04). At 495 days of age, the weight of uterus, ovaries and corpora lutea were not affected by the age of dams at calving (P > 0.25). These data indicated that the age at which heifers received their first service affects female offspring growth RTS at early ages, but it does not have any impact in organ development after diet with a high energy level. EEA Cuenca del Salado Fil: Lopez Valiente, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina Fil: Rodriguez, Alejandro Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina Fil: Long, Nathan M. Clemson University. Department of Animal and Veterinary Sciences; Estados Unidos Fil: Maresca, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina 2024-07-01T14:03:27Z 2024-07-01T14:03:27Z 2024-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/18345 https://www.sciencedirect.com/science/article/pii/S2772694024000128 2772-6940 https://doi.org/10.1016/j.anopes.2024.100072 eng info:eu-repograntAgreement/INTA/PNPA-1126023/AR./Alimentación de bovinos para carne. info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Animal - Open Space 3 : 100072. (December 2024) |
| spellingShingle | Ganado Bovino Gestación Destete Período Postdestete Crecimiento Cattle Pregnancy Weaning Postweaning Period Growth Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Long, Nathan M. Maresca, Sebastian Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development |
| title | Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development |
| title_full | Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development |
| title_fullStr | Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development |
| title_full_unstemmed | Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development |
| title_short | Age at first gestation in bovine influences female progeny post-weaning growth and reproductive development |
| title_sort | age at first gestation in bovine influences female progeny post weaning growth and reproductive development |
| topic | Ganado Bovino Gestación Destete Período Postdestete Crecimiento Cattle Pregnancy Weaning Postweaning Period Growth |
| url | http://hdl.handle.net/20.500.12123/18345 https://www.sciencedirect.com/science/article/pii/S2772694024000128 https://doi.org/10.1016/j.anopes.2024.100072 |
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