The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle

The aim of the present study was to evaluate the effect of various administration routes of PGF2α analogue, D-cloprostenol, at the time of artificial insemination (AI) on conception rate in a large dairy herd. A total number of 659 lactating dairy cows (101 heifers and 558 cows) were enrolled in the...

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Autores principales:	Mohammad Javad Behzadi-Shahrbabak, Naser Shams-Esfandabadi, Abolfazl Shirazi, Taghi Taktaz-Hafshejani
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	prostaglandin f2α d-cloprostenol artificial insemination conception rate dairy cattle Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/e4db88878eb84eac8cf973e71f2928df
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spelling	oai:doaj.org-article:e4db88878eb84eac8cf973e71f2928df2021-11-11T14:23:42ZThe effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle1594-40771828-051X10.1080/1828051X.2021.1925169https://doaj.org/article/e4db88878eb84eac8cf973e71f2928df2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/1828051X.2021.1925169https://doaj.org/toc/1594-4077https://doaj.org/toc/1828-051XThe aim of the present study was to evaluate the effect of various administration routes of PGF2α analogue, D-cloprostenol, at the time of artificial insemination (AI) on conception rate in a large dairy herd. A total number of 659 lactating dairy cows (101 heifers and 558 cows) were enrolled in the study. Following heat detection, the cows were artificially inseminated according to the AM-PM rule. The animals were divided into a control (29 heifers and178 cows) and three experimental groups; IM (53 heifers and 110 cows), IV (155 cows) and IU (19 heifers and115 cows) groups that received intramuscular 150 µg, intravenous 150 µg and intrauterine 5 µg of D-cloprostenol, respectively, at the time of AI. The control group did not receive any treatment at the time of AI. To measure serum progesterone concentration, blood samples were obtained from 15 cows in each group at the time of insemination and on days 4 and 15 post-insemination. Pregnancy was diagnosed by rectal ultrasound examination between days 35-40 post-insemination. The effects of treatments, parity, milk production, and days in milk (DIM) on conception rate of adult cows were evaluated using the multivariate logistic regression model. Intramuscular administration of D-cloprostenol at the time of AI significantly increased conception rate in dairy cows compared to the control group (60.1% vs. 40.6%; p = .005). However, intravenous and intrauterine administration of D-cloprostenol did not alter the conception rate (32.3%; p = .29 and 50%; p = .11, respectively). D-cloprostenol treatment at AI could not significantly increase the conception rate of heifers followingboth (IM & IU) administration routes. In conclusion, this study showed that intramuscular administration of D-cloprostenol at the time of insemination might improve the conception rate in adult cows, while its intravenous and intrauterine administration did not induce any positive effects on reproductive efficiency of dairy cows.HIGHLIGHTS Intramuscular administration of D-cloprostenol at the time of insemination might improve the conception rate in adult cows. Intravenous administration of D-cloprostenol did not induce any positive effects on reproductive efficiency of dairy cows. Intrauterine administration of D-cloprostenol did not induce any positive effects on conception rate of dairy cows.Mohammad Javad Behzadi-ShahrbabakNaser Shams-EsfandabadiAbolfazl ShiraziTaghi Taktaz-HafshejaniTaylor & Francis Grouparticleprostaglandin f2αd-cloprostenolartificial inseminationconception ratedairy cattleAnimal cultureSF1-1100ENItalian Journal of Animal Science, Vol 20, Iss 1, Pp 1882-1888 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	prostaglandin f2α d-cloprostenol artificial insemination conception rate dairy cattle Animal culture SF1-1100
spellingShingle	prostaglandin f2α d-cloprostenol artificial insemination conception rate dairy cattle Animal culture SF1-1100 Mohammad Javad Behzadi-Shahrbabak Naser Shams-Esfandabadi Abolfazl Shirazi Taghi Taktaz-Hafshejani The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
description	The aim of the present study was to evaluate the effect of various administration routes of PGF2α analogue, D-cloprostenol, at the time of artificial insemination (AI) on conception rate in a large dairy herd. A total number of 659 lactating dairy cows (101 heifers and 558 cows) were enrolled in the study. Following heat detection, the cows were artificially inseminated according to the AM-PM rule. The animals were divided into a control (29 heifers and178 cows) and three experimental groups; IM (53 heifers and 110 cows), IV (155 cows) and IU (19 heifers and115 cows) groups that received intramuscular 150 µg, intravenous 150 µg and intrauterine 5 µg of D-cloprostenol, respectively, at the time of AI. The control group did not receive any treatment at the time of AI. To measure serum progesterone concentration, blood samples were obtained from 15 cows in each group at the time of insemination and on days 4 and 15 post-insemination. Pregnancy was diagnosed by rectal ultrasound examination between days 35-40 post-insemination. The effects of treatments, parity, milk production, and days in milk (DIM) on conception rate of adult cows were evaluated using the multivariate logistic regression model. Intramuscular administration of D-cloprostenol at the time of AI significantly increased conception rate in dairy cows compared to the control group (60.1% vs. 40.6%; p = .005). However, intravenous and intrauterine administration of D-cloprostenol did not alter the conception rate (32.3%; p = .29 and 50%; p = .11, respectively). D-cloprostenol treatment at AI could not significantly increase the conception rate of heifers followingboth (IM & IU) administration routes. In conclusion, this study showed that intramuscular administration of D-cloprostenol at the time of insemination might improve the conception rate in adult cows, while its intravenous and intrauterine administration did not induce any positive effects on reproductive efficiency of dairy cows.HIGHLIGHTS Intramuscular administration of D-cloprostenol at the time of insemination might improve the conception rate in adult cows. Intravenous administration of D-cloprostenol did not induce any positive effects on reproductive efficiency of dairy cows. Intrauterine administration of D-cloprostenol did not induce any positive effects on conception rate of dairy cows.
format	article
author	Mohammad Javad Behzadi-Shahrbabak Naser Shams-Esfandabadi Abolfazl Shirazi Taghi Taktaz-Hafshejani
author_facet	Mohammad Javad Behzadi-Shahrbabak Naser Shams-Esfandabadi Abolfazl Shirazi Taghi Taktaz-Hafshejani
author_sort	Mohammad Javad Behzadi-Shahrbabak
title	The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
title_short	The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
title_full	The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
title_fullStr	The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
title_full_unstemmed	The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
title_sort	effect of various administration routs of d-cloprostenol at the time of artificial insemination on conception rate in dairy cattle
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/e4db88878eb84eac8cf973e71f2928df
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The effect of various administration routs of D-cloprostenol at the time of artificial insemination on conception rate in dairy cattle

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