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Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows

OBJECTIVE: The experiment was designed to establish suitable management strategies through the different feeding and breeding approaches on fertility improvement in the experimental repeat breeding (RB) cows. MATERIALS AND METHODS: 80 RB cows were selected for this experiment. Before grouping, all c...

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Autores principales: Hasan, Mir Md. Iqbal, Hasan, Moinul, Harun-Or-Rashid, Mohammad, Rahman, Marzia, Rahman, Md. Siddiqur, Juyena, Nasrin Sultana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: A periodical of the Network for the Veterinarians of Bangladesh (BDvetNET) 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8280983/
https://www.ncbi.nlm.nih.gov/pubmed/34395599
http://dx.doi.org/10.5455/javar.2021.h513
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author Hasan, Mir Md. Iqbal
Hasan, Moinul
Harun-Or-Rashid, Mohammad
Rahman, Marzia
Rahman, Md. Siddiqur
Juyena, Nasrin Sultana
author_facet Hasan, Mir Md. Iqbal
Hasan, Moinul
Harun-Or-Rashid, Mohammad
Rahman, Marzia
Rahman, Md. Siddiqur
Juyena, Nasrin Sultana
author_sort Hasan, Mir Md. Iqbal
collection PubMed
description OBJECTIVE: The experiment was designed to establish suitable management strategies through the different feeding and breeding approaches on fertility improvement in the experimental repeat breeding (RB) cows. MATERIALS AND METHODS: 80 RB cows were selected for this experiment. Before grouping, all cows were deworming and then divided into four equal groups, namely Group–TF1 [traditional feeding practice and natural insemination (NI)], Group–TF2 [traditional feeding practice and Artificial insemination (AI)], Group–SF1 [standard (STD) feeding practice and NI], and Group–SF2 (STD feeding practice and AI). These allocated RB cows were fed by traditional and STD feeding methods for 90 days and then inseminated by AI and NI breeding systems. The dominant follicle (DF) diameter, hemato-biochemical elements, and estrogen (E(2)) hormone were estimated during the insemination of cows. Estimation of the pregnancy rate was carried out at days 45–90 post-insemination in the cows. RESULTS: The pregnancy rate was significantly (p < 0.05) higher in STD feeding practice with NI when compared to traditional feeding practice irrespective of breeding systems, and it was also significantly (p < 0.05) higher in NI than in AI breeding system, irrespective of feeding strategies. The results also showed that the diameter of DF, serum E(2), total erythrocyte count, hemoglobin, packed cell volume, total cholesterol, total protein, glucose, calcium, phosphorus, ferric iron, copper, zinc, and magnesium at the time of insemination were significantly (p < 0.01) elevated in the experimental RB cows with STD feeding practice. The diameter of DF and serum E(2) were significant (p < 0.01) and positively correlated with all hemato-biochemical elements in the cows at the time of insemination. CONCLUSION: The results suggest that NI with STD feeding practice may increase fertility in RB cows by improving general health status. Finally, it could support the veterinarians and researchers to define the management strategies using feeding and breeding strategies to prevent repeat breeding syndrome in dairy cows.
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spelling pubmed-82809832021-08-13 Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows Hasan, Mir Md. Iqbal Hasan, Moinul Harun-Or-Rashid, Mohammad Rahman, Marzia Rahman, Md. Siddiqur Juyena, Nasrin Sultana J Adv Vet Anim Res Original Article OBJECTIVE: The experiment was designed to establish suitable management strategies through the different feeding and breeding approaches on fertility improvement in the experimental repeat breeding (RB) cows. MATERIALS AND METHODS: 80 RB cows were selected for this experiment. Before grouping, all cows were deworming and then divided into four equal groups, namely Group–TF1 [traditional feeding practice and natural insemination (NI)], Group–TF2 [traditional feeding practice and Artificial insemination (AI)], Group–SF1 [standard (STD) feeding practice and NI], and Group–SF2 (STD feeding practice and AI). These allocated RB cows were fed by traditional and STD feeding methods for 90 days and then inseminated by AI and NI breeding systems. The dominant follicle (DF) diameter, hemato-biochemical elements, and estrogen (E(2)) hormone were estimated during the insemination of cows. Estimation of the pregnancy rate was carried out at days 45–90 post-insemination in the cows. RESULTS: The pregnancy rate was significantly (p < 0.05) higher in STD feeding practice with NI when compared to traditional feeding practice irrespective of breeding systems, and it was also significantly (p < 0.05) higher in NI than in AI breeding system, irrespective of feeding strategies. The results also showed that the diameter of DF, serum E(2), total erythrocyte count, hemoglobin, packed cell volume, total cholesterol, total protein, glucose, calcium, phosphorus, ferric iron, copper, zinc, and magnesium at the time of insemination were significantly (p < 0.01) elevated in the experimental RB cows with STD feeding practice. The diameter of DF and serum E(2) were significant (p < 0.01) and positively correlated with all hemato-biochemical elements in the cows at the time of insemination. CONCLUSION: The results suggest that NI with STD feeding practice may increase fertility in RB cows by improving general health status. Finally, it could support the veterinarians and researchers to define the management strategies using feeding and breeding strategies to prevent repeat breeding syndrome in dairy cows. A periodical of the Network for the Veterinarians of Bangladesh (BDvetNET) 2021-06-23 /pmc/articles/PMC8280983/ /pubmed/34395599 http://dx.doi.org/10.5455/javar.2021.h513 Text en Copyright: © Journal of Advanced Veterinary and Animal Research https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/) )
spellingShingle Original Article
Hasan, Mir Md. Iqbal
Hasan, Moinul
Harun-Or-Rashid, Mohammad
Rahman, Marzia
Rahman, Md. Siddiqur
Juyena, Nasrin Sultana
Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
title Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
title_full Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
title_fullStr Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
title_full_unstemmed Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
title_short Standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
title_sort standard feeding strategies with natural insemination improved fertility in repeat breeding dairy cows
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8280983/
https://www.ncbi.nlm.nih.gov/pubmed/34395599
http://dx.doi.org/10.5455/javar.2021.h513
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