Occurrence of repeat breeding in crossbred dairy cattle

The present research work was undertaken to evaluate the occurrence of repeat breeding (RB) among crossbred dairy cattle for three years from January 2017 to December 2019. Crossbred cows having apparently normal genitalia and showing regular oestrous cycle but failing to conceive even after three c...

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Autores principales:	S. Aruna, A.C.P. Abdul, K. Promod, B.K. Lekshmi, M. Ashokkumar
Formato:	article
Lenguaje:	EN
Publicado:	Director of Academics and Research, Kerala Veterinary and Animal Sciences University 2021
Materias:	cytological endometritis occurrence repeat breeding Animal biochemistry QP501-801 Science (General) Q1-390
Acceso en línea:	https://doaj.org/article/bb7403eed896499796223b76b470e21e
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spelling	oai:doaj.org-article:bb7403eed896499796223b76b470e21e2021-11-18T14:46:08ZOccurrence of repeat breeding in crossbred dairy cattle10.51966/jvas.2021.52.3.308-3110971-07012582-0605https://doaj.org/article/bb7403eed896499796223b76b470e21e2021-07-01T00:00:00Zhttps://www.jvas.in/public_html/upload/article_file/article_file_r0qq9s.pdf?t=r0qq9shttps://doaj.org/toc/0971-0701https://doaj.org/toc/2582-0605The present research work was undertaken to evaluate the occurrence of repeat breeding (RB) among crossbred dairy cattle for three years from January 2017 to December 2019. Crossbred cows having apparently normal genitalia and showing regular oestrous cycle but failing to conceive even after three consecutive inseminations were selected as RB cows based on data collected from breeding registers. The occurrence of RB in the year 2017, 2018 and 2019 were 29.20, 24.12 and 19.52 per cent, respectively with an overall occurrence of 23.60 per cent. Detailed clinico-gynaecological and ultrasonographic examinations of 41 RB cows were carried out for the identification of various etiological factors during the study period (September 2019 to August 2020). Samples for endometrial cytology were collected during oestrus by cytobrush technique to rule out cytological endometritis (sub clinical endometritis). The occurrence of various identified causes of RB were cytological endometritis (17.07 %), fibrosis of cervix (7.31 %), endometritis (7.31 %), follicular cyst (4.88 %), kinked cervix (2.44 %), uterine unicornis (2.44 %) and other reasons (58.54 %). Repeat breeding is a major cause of infertility in crossbred dairy cattle and early diagnosis is essential for the effective management and to enhance production.S. ArunaA.C.P. AbdulK. PromodB.K. LekshmiM. AshokkumarDirector of Academics and Research, Kerala Veterinary and Animal Sciences Universityarticlecytological endometritisoccurrencerepeat breedingAnimal biochemistryQP501-801Science (General)Q1-390ENJournal of Veterinary and Animal Sciences, Vol 52, Iss 3, Pp 308-311 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cytological endometritis occurrence repeat breeding Animal biochemistry QP501-801 Science (General) Q1-390
spellingShingle	cytological endometritis occurrence repeat breeding Animal biochemistry QP501-801 Science (General) Q1-390 S. Aruna A.C.P. Abdul K. Promod B.K. Lekshmi M. Ashokkumar Occurrence of repeat breeding in crossbred dairy cattle
description	The present research work was undertaken to evaluate the occurrence of repeat breeding (RB) among crossbred dairy cattle for three years from January 2017 to December 2019. Crossbred cows having apparently normal genitalia and showing regular oestrous cycle but failing to conceive even after three consecutive inseminations were selected as RB cows based on data collected from breeding registers. The occurrence of RB in the year 2017, 2018 and 2019 were 29.20, 24.12 and 19.52 per cent, respectively with an overall occurrence of 23.60 per cent. Detailed clinico-gynaecological and ultrasonographic examinations of 41 RB cows were carried out for the identification of various etiological factors during the study period (September 2019 to August 2020). Samples for endometrial cytology were collected during oestrus by cytobrush technique to rule out cytological endometritis (sub clinical endometritis). The occurrence of various identified causes of RB were cytological endometritis (17.07 %), fibrosis of cervix (7.31 %), endometritis (7.31 %), follicular cyst (4.88 %), kinked cervix (2.44 %), uterine unicornis (2.44 %) and other reasons (58.54 %). Repeat breeding is a major cause of infertility in crossbred dairy cattle and early diagnosis is essential for the effective management and to enhance production.
format	article
author	S. Aruna A.C.P. Abdul K. Promod B.K. Lekshmi M. Ashokkumar
author_facet	S. Aruna A.C.P. Abdul K. Promod B.K. Lekshmi M. Ashokkumar
author_sort	S. Aruna
title	Occurrence of repeat breeding in crossbred dairy cattle
title_short	Occurrence of repeat breeding in crossbred dairy cattle
title_full	Occurrence of repeat breeding in crossbred dairy cattle
title_fullStr	Occurrence of repeat breeding in crossbred dairy cattle
title_full_unstemmed	Occurrence of repeat breeding in crossbred dairy cattle
title_sort	occurrence of repeat breeding in crossbred dairy cattle
publisher	Director of Academics and Research, Kerala Veterinary and Animal Sciences University
publishDate	2021
url	https://doaj.org/article/bb7403eed896499796223b76b470e21e
work_keys_str_mv	AT saruna occurrenceofrepeatbreedingincrossbreddairycattle AT acpabdul occurrenceofrepeatbreedingincrossbreddairycattle AT kpromod occurrenceofrepeatbreedingincrossbreddairycattle AT bklekshmi occurrenceofrepeatbreedingincrossbreddairycattle AT mashokkumar occurrenceofrepeatbreedingincrossbreddairycattle
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Occurrence of repeat breeding in crossbred dairy cattle

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