The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows

<b>The aim of the study was to use evolutionary operations (EVOP) to evaluate changes in the behaviour of dairy cows depending on the strategy according to which they were grouped after calving. The experiment was carried out on a Danish farm keeping about 200 Holstein cows. The farm had two s...

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Autores principales:	Anna Czubernat, Joanna Makulska, Mogens Krogh, Anna Stygar
Formato:	article
Lenguaje:	EN PL
Publicado:	Polish Society of Animal Production 2020
Materias:	evolutionary operation dairy cows cow grouping strategy lying time Zoology QL1-991
Acceso en línea:	https://doaj.org/article/0f44c6848b824a29b1cead410117547c
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spelling	oai:doaj.org-article:0f44c6848b824a29b1cead410117547c2021-11-10T16:44:03ZThe use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows1733-73052719-393410.5604/01.3001.0014.6073https://doaj.org/article/0f44c6848b824a29b1cead410117547c2020-12-01T00:00:00Zhttp://zootechnical.com/gicid/01.3001.0014.6073http://zootechnical.com/gicid/pdf/01.3001.0014.6073https://doaj.org/toc/1733-7305https://doaj.org/toc/2719-3934<b>The aim of the study was to use evolutionary operations (EVOP) to evaluate changes in the behaviour of dairy cows depending on the strategy according to which they were grouped after calving. The experiment was carried out on a Danish farm keeping about 200 Holstein cows. The farm had two separate areas for lactating cows: a small area with 54 waterbeds and a larger area with 133 beds with mattresses. During the experiment both areas were filled with cows. Cows after calving were introduced to either the small area (group) or the large area (group). After 14 days, the cows from the small group were transferred to the large group. The impact of different cow grouping strategies on their lying time, considered a welfare indicator, was examined. During the 210-day experiment, 195,703 observations were collected. The behavioural data were analysed using a linear mixed-effect regression model fitted by the maximum likelihood method. Days in milk, parity number, and lying time of herd mates were found to significantly affect the lying time of individual cows, while the strategy of cow grouping after calving had no effect on lying time.</b> Anna CzubernatJoanna MakulskaMogens KroghAnna StygarPolish Society of Animal Productionarticleevolutionary operationdairy cowscow grouping strategylying timeZoologyQL1-991ENPLRoczniki Naukowe Polskiego Towarzystwa Zootechnicznego, Vol 16, Iss 4, Pp 59-68 (2020)
institution	DOAJ
collection	DOAJ
language	EN PL
topic	evolutionary operation dairy cows cow grouping strategy lying time Zoology QL1-991
spellingShingle	evolutionary operation dairy cows cow grouping strategy lying time Zoology QL1-991 Anna Czubernat Joanna Makulska Mogens Krogh Anna Stygar The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
description	<b>The aim of the study was to use evolutionary operations (EVOP) to evaluate changes in the behaviour of dairy cows depending on the strategy according to which they were grouped after calving. The experiment was carried out on a Danish farm keeping about 200 Holstein cows. The farm had two separate areas for lactating cows: a small area with 54 waterbeds and a larger area with 133 beds with mattresses. During the experiment both areas were filled with cows. Cows after calving were introduced to either the small area (group) or the large area (group). After 14 days, the cows from the small group were transferred to the large group. The impact of different cow grouping strategies on their lying time, considered a welfare indicator, was examined. During the 210-day experiment, 195,703 observations were collected. The behavioural data were analysed using a linear mixed-effect regression model fitted by the maximum likelihood method. Days in milk, parity number, and lying time of herd mates were found to significantly affect the lying time of individual cows, while the strategy of cow grouping after calving had no effect on lying time.</b>
format	article
author	Anna Czubernat Joanna Makulska Mogens Krogh Anna Stygar
author_facet	Anna Czubernat Joanna Makulska Mogens Krogh Anna Stygar
author_sort	Anna Czubernat
title	The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
title_short	The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
title_full	The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
title_fullStr	The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
title_full_unstemmed	The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
title_sort	use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows
publisher	Polish Society of Animal Production
publishDate	2020
url	https://doaj.org/article/0f44c6848b824a29b1cead410117547c
work_keys_str_mv	AT annaczubernat theuseofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT joannamakulska theuseofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT mogenskrogh theuseofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT annastygar theuseofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT annaczubernat useofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT joannamakulska useofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT mogenskrogh useofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows AT annastygar useofevolutionaryoperationstoassesstheinterventioneffectonthebehaviourofdairycows
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The use of evolutionary operations to assess the intervention effect on the behaviour of dairy cows

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