Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia

Birhanu Hailu; Berihu Gebrekidan; Solmon Raju; Alemselam Birhanu; Gebrehiwot Tadesse; Gezahign Alemayehu

doi:doi:10.11648/j.avs.20150302.12

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Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia

Birhanu Hailu, Berihu Gebrekidan, Solmon Raju, Alemselam Birhanu, Gebrehiwot Tadesse, Gezahign Alemayehu

Published in Animal and Veterinary Sciences (Volume 3, Issue 2)

Received: 31 January 2015 Accepted: 13 February 2015 Published: 25 February 2015

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Abstract

The aim of the present study was to determine outcome of gonadotropin releasing hormone analogue given 12 days post AI and double inseminations during estrous period of dairy cattle and improvement of conception rate. Field trial was carried out on repeat breeding cross breed dairy cows which are lactating, apparently healthy and exhibits estrus regularly. A total of Sixty three repeat-breeding cows from twenty eight herds were selected and assigned randomly in to three equal groups G (1, 2 and 3); two treated and one control group. Group1 (n=21) cattle were treated intramuscularly with 10 µg buserelin acetate 12 days post AI. Group2 (n=21) cattle were inseminated twice during estrus exhibition with 6-8 hours interval. Group3 (n=21) cattle were receive no treatment, inseminated once as heat was detected and considered as a control group. Dairy cows were examined for pregnancy after three months through rectal palpation. Pregnancy rates recorded were 52%, 38% and 28% in G1, G2 and G3 respectively. Conception rates of treated groups (G1 and G2) exceed control group by 24% and 10% respectively and showed a significant statistical variation (P<0.05) as compared to control groups. Comparison between treated groups also indicated that G1 has statistical significant difference from G2. From this experiment, it is recommended that use of GnRH 12 days can improve pregnancy rate as compared to double insemination and single service.

Published in	Animal and Veterinary Sciences (Volume 3, Issue 2)
DOI	10.11648/j.avs.20150302.12
Page(s)	41-45
Creative Commons	This is an Open Access article, 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 or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Crossbred Cattle, Estrus, Double Insemination, GnRH Analogue, Pregnancy Rates

References

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Birhanu Hailu, Berihu Gebrekidan, Solmon Raju, Alemselam Birhanu, Gebrehiwot Tadesse, et al. (2015). Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia. Animal and Veterinary Sciences, 3(2), 41-45. https://doi.org/10.11648/j.avs.20150302.12

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ACS Style

Birhanu Hailu; Berihu Gebrekidan; Solmon Raju; Alemselam Birhanu; Gebrehiwot Tadesse, et al. Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia. Anim. Vet. Sci. 2015, 3(2), 41-45. doi: 10.11648/j.avs.20150302.12

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AMA Style

Birhanu Hailu, Berihu Gebrekidan, Solmon Raju, Alemselam Birhanu, Gebrehiwot Tadesse, et al. Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia. Anim Vet Sci. 2015;3(2):41-45. doi: 10.11648/j.avs.20150302.12

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@article{10.11648/j.avs.20150302.12,
  author = {Birhanu Hailu and Berihu Gebrekidan and Solmon Raju and Alemselam Birhanu and Gebrehiwot Tadesse and Gezahign Alemayehu},
  title = {Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia},
  journal = {Animal and Veterinary Sciences},
  volume = {3},
  number = {2},
  pages = {41-45},
  doi = {10.11648/j.avs.20150302.12},
  url = {https://doi.org/10.11648/j.avs.20150302.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.avs.20150302.12},
  abstract = {The aim of the present study was to determine outcome of gonadotropin releasing hormone analogue given 12 days post AI and double inseminations during estrous period of dairy cattle and improvement of conception rate. Field trial was carried out on repeat breeding cross breed dairy cows which are lactating, apparently healthy and exhibits estrus regularly. A total of Sixty three repeat-breeding cows from twenty eight herds were selected and assigned randomly in to three equal groups G (1, 2 and 3); two treated and one control group. Group1 (n=21) cattle were treated intramuscularly with 10 µg buserelin acetate 12 days post AI. Group2 (n=21) cattle were inseminated twice during estrus exhibition with 6-8 hours interval. Group3 (n=21) cattle were receive no treatment, inseminated once as heat was detected and considered as a control group. Dairy cows were examined for pregnancy after three months through rectal palpation. Pregnancy rates recorded were 52%, 38% and 28% in G1, G2 and G3 respectively. Conception rates of treated groups (G1 and G2) exceed control group by 24% and 10% respectively and showed a significant statistical variation (P<0.05) as compared to control groups. Comparison between treated groups also indicated that G1 has statistical significant difference from G2. From this experiment, it is recommended that use of GnRH 12 days can improve pregnancy rate as compared to double insemination and single service.},
 year = {2015}
}

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TY - JOUR
T1 - Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia
AU - Birhanu Hailu
AU - Berihu Gebrekidan
AU - Solmon Raju
AU - Alemselam Birhanu
AU - Gebrehiwot Tadesse
AU - Gezahign Alemayehu
Y1 - 2015/02/25
PY - 2015
N1 - https://doi.org/10.11648/j.avs.20150302.12
DO - 10.11648/j.avs.20150302.12
T2 - Animal and Veterinary Sciences
JF - Animal and Veterinary Sciences
JO - Animal and Veterinary Sciences
SP - 41
EP - 45
PB - Science Publishing Group
SN - 2328-5850
UR - https://doi.org/10.11648/j.avs.20150302.12
AB - The aim of the present study was to determine outcome of gonadotropin releasing hormone analogue given 12 days post AI and double inseminations during estrous period of dairy cattle and improvement of conception rate. Field trial was carried out on repeat breeding cross breed dairy cows which are lactating, apparently healthy and exhibits estrus regularly. A total of Sixty three repeat-breeding cows from twenty eight herds were selected and assigned randomly in to three equal groups G (1, 2 and 3); two treated and one control group. Group1 (n=21) cattle were treated intramuscularly with 10 µg buserelin acetate 12 days post AI. Group2 (n=21) cattle were inseminated twice during estrus exhibition with 6-8 hours interval. Group3 (n=21) cattle were receive no treatment, inseminated once as heat was detected and considered as a control group. Dairy cows were examined for pregnancy after three months through rectal palpation. Pregnancy rates recorded were 52%, 38% and 28% in G1, G2 and G3 respectively. Conception rates of treated groups (G1 and G2) exceed control group by 24% and 10% respectively and showed a significant statistical variation (P<0.05) as compared to control groups. Comparison between treated groups also indicated that G1 has statistical significant difference from G2. From this experiment, it is recommended that use of GnRH 12 days can improve pregnancy rate as compared to double insemination and single service.
VL - 3
IS - 2
ER -

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Author Information

Birhanu Hailu

Samara University, College of Veterinary Medicine, Department of Veterinary Epidemiology and Preventive Medicine, Samara, Ethiopia
Berihu Gebrekidan

Mekelle University, College of Veterinary Medicine, Mekelle, Ethiopia
Solmon Raju

Mekelle University, College of Veterinary Medicine, Mekelle, Ethiopia
Alemselam Birhanu

Mekelle University, College of Veterinary Medicine, Mekelle, Ethiopia
Gebrehiwot Tadesse

Mekelle University, College of Veterinary Medicine, Mekelle, Ethiopia
Gezahign Alemayehu

Samara University, College of Veterinary Medicine, Department of Veterinary Epidemiology and Preventive Medicine, Samara, Ethiopia

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Birhanu Hailu, Berihu Gebrekidan, Solmon Raju, Alemselam Birhanu, Gebrehiwot Tadesse, et al. (2015). Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia. Animal and Veterinary Sciences, 3(2), 41-45. https://doi.org/10.11648/j.avs.20150302.12

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Birhanu Hailu; Berihu Gebrekidan; Solmon Raju; Alemselam Birhanu; Gebrehiwot Tadesse, et al. Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia. Anim. Vet. Sci. 2015, 3(2), 41-45. doi: 10.11648/j.avs.20150302.12

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AMA Style

Birhanu Hailu, Berihu Gebrekidan, Solmon Raju, Alemselam Birhanu, Gebrehiwot Tadesse, et al. Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia. Anim Vet Sci. 2015;3(2):41-45. doi: 10.11648/j.avs.20150302.12

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@article{10.11648/j.avs.20150302.12,
  author = {Birhanu Hailu and Berihu Gebrekidan and Solmon Raju and Alemselam Birhanu and Gebrehiwot Tadesse and Gezahign Alemayehu},
  title = {Outcome of Gonadotropin Releasing Hormone Treatment 12 Days Post AI and Double Insemination on Conception Rate of Repeat Breeding Cows in Mekelle, Tigray, Ethiopia},
  journal = {Animal and Veterinary Sciences},
  volume = {3},
  number = {2},
  pages = {41-45},
  doi = {10.11648/j.avs.20150302.12},
  url = {https://doi.org/10.11648/j.avs.20150302.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.avs.20150302.12},
  abstract = {The aim of the present study was to determine outcome of gonadotropin releasing hormone analogue given 12 days post AI and double inseminations during estrous period of dairy cattle and improvement of conception rate. Field trial was carried out on repeat breeding cross breed dairy cows which are lactating, apparently healthy and exhibits estrus regularly. A total of Sixty three repeat-breeding cows from twenty eight herds were selected and assigned randomly in to three equal groups G (1, 2 and 3); two treated and one control group. Group1 (n=21) cattle were treated intramuscularly with 10 µg buserelin acetate 12 days post AI. Group2 (n=21) cattle were inseminated twice during estrus exhibition with 6-8 hours interval. Group3 (n=21) cattle were receive no treatment, inseminated once as heat was detected and considered as a control group. Dairy cows were examined for pregnancy after three months through rectal palpation. Pregnancy rates recorded were 52%, 38% and 28% in G1, G2 and G3 respectively. Conception rates of treated groups (G1 and G2) exceed control group by 24% and 10% respectively and showed a significant statistical variation (P<0.05) as compared to control groups. Comparison between treated groups also indicated that G1 has statistical significant difference from G2. From this experiment, it is recommended that use of GnRH 12 days can improve pregnancy rate as compared to double insemination and single service.},
 year = {2015}
}

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