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Reproductive performance of Ankole cattle and its crossbreds in Rwanda
The aim of this study was to assess the reproductive performance of Ankole cattle and its crossbreds with Friesian (F), Jersey (J), and Sahiwal (S). The traits (number of records) studied were calving to first insemination, CFI (797); calving to last insemination, CLI (797); conception rate, CR (435...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347586/ https://www.ncbi.nlm.nih.gov/pubmed/29987649 http://dx.doi.org/10.1007/s11250-018-1658-8 |
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author | Manzi, Maximillian Rydhmer, Lotta Ntawubizi, Martin Karege, Callixte Strandberg, Erling |
author_facet | Manzi, Maximillian Rydhmer, Lotta Ntawubizi, Martin Karege, Callixte Strandberg, Erling |
author_sort | Manzi, Maximillian |
collection | PubMed |
description | The aim of this study was to assess the reproductive performance of Ankole cattle and its crossbreds with Friesian (F), Jersey (J), and Sahiwal (S). The traits (number of records) studied were calving to first insemination, CFI (797); calving to last insemination, CLI (797); conception rate, CR (4354); number of inseminations, NINS (936); and calving interval, CI (259). The overall means of intervals CFI, CLI and CI, CR, and NINS were 192, 198 and 480 days, 67%, and 1.23 respectively. Breed group was significant (P < 0.05) for all traits except NINS, while season of calving was significant for CFI, CLI, and CI, and season of insemination was significant for CR. The breed group AF had better CR than the purebred Ankole and AS, and AS had lower CR than AJxS and AJ. On the other hand, Ankole (and to some extent AF) had longer CFI and CLI than AJ, AS, and FF. Ankole had 54 days longer CI than all crossbreds taken together. The prolonged intervals CFI, CLI, and CI observed in this study call for proper postpartum anestrus management both in terms of nutrition and calf suckling management. |
format | Online Article Text |
id | pubmed-6347586 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-63475862019-02-08 Reproductive performance of Ankole cattle and its crossbreds in Rwanda Manzi, Maximillian Rydhmer, Lotta Ntawubizi, Martin Karege, Callixte Strandberg, Erling Trop Anim Health Prod Regular Articles The aim of this study was to assess the reproductive performance of Ankole cattle and its crossbreds with Friesian (F), Jersey (J), and Sahiwal (S). The traits (number of records) studied were calving to first insemination, CFI (797); calving to last insemination, CLI (797); conception rate, CR (4354); number of inseminations, NINS (936); and calving interval, CI (259). The overall means of intervals CFI, CLI and CI, CR, and NINS were 192, 198 and 480 days, 67%, and 1.23 respectively. Breed group was significant (P < 0.05) for all traits except NINS, while season of calving was significant for CFI, CLI, and CI, and season of insemination was significant for CR. The breed group AF had better CR than the purebred Ankole and AS, and AS had lower CR than AJxS and AJ. On the other hand, Ankole (and to some extent AF) had longer CFI and CLI than AJ, AS, and FF. Ankole had 54 days longer CI than all crossbreds taken together. The prolonged intervals CFI, CLI, and CI observed in this study call for proper postpartum anestrus management both in terms of nutrition and calf suckling management. Springer Netherlands 2018-07-10 2019 /pmc/articles/PMC6347586/ /pubmed/29987649 http://dx.doi.org/10.1007/s11250-018-1658-8 Text en © The Author(s) 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Regular Articles Manzi, Maximillian Rydhmer, Lotta Ntawubizi, Martin Karege, Callixte Strandberg, Erling Reproductive performance of Ankole cattle and its crossbreds in Rwanda |
title | Reproductive performance of Ankole cattle and its crossbreds in Rwanda |
title_full | Reproductive performance of Ankole cattle and its crossbreds in Rwanda |
title_fullStr | Reproductive performance of Ankole cattle and its crossbreds in Rwanda |
title_full_unstemmed | Reproductive performance of Ankole cattle and its crossbreds in Rwanda |
title_short | Reproductive performance of Ankole cattle and its crossbreds in Rwanda |
title_sort | reproductive performance of ankole cattle and its crossbreds in rwanda |
topic | Regular Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347586/ https://www.ncbi.nlm.nih.gov/pubmed/29987649 http://dx.doi.org/10.1007/s11250-018-1658-8 |
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