Ingestive diurnal behaviour of grazing beef cattle
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Publication Date: | 2020 |
Other Authors: | , , , , , |
Format: | Article |
Language: | eng |
Source: | Semina. Ciências Agrárias (Online) |
Download full: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/37186 |
Summary: | Three experiments were conducted with the objective of evaluating the effects of supplementation (concentrate or mineral supplementation), supplementation strategy (continuous or strategic supplementation) and gender class on the ingestive and diurnal behaviour of grazing beef cattle. To evaluate the effect of the supplementation (Experiment 1) and the gender class (Experiment 3) on their diurnal behaviour, behaviour visualisations were performed by two people at observation stations outside the picket area with the aid of binoculars. The animal behaviour was classified as: supplement intake, grazing, water intake, standing ruminating, standing idle, lying ruminating, lying idle and walking. To evaluate the effect of the supplementation strategy on the ingestive behaviour of the supplement (Experiment 2), refusals of the supplement were weighed for six consecutive days at different times (20, 40, 60, 90, 120, 180, 240, 480 and 1,440 minutes) after the concentrate was supplied. The intake of concentrate per animal, at each observation time, was calculated by subtracting the weight of the scraps at that time from the total weight of the batch of supplement provided on the day, and dividing the result by the number of animals in each batch. Finally, a logistic model was adjusted for each treatment. A 10% significance level was adopted for all statistical procedures. Concentrate supplementation reduced the time that the animals spent grazing. The continuous supplementation strategy affected the uniformity of the supplement intake speed, without affecting the average speed or the total supplement intake. The gender class of the animals also influenced their diurnal behaviour, castrated males spent more time lying, compared to females. The specificities of cattle behaviour should be considered when delineating the supplementation of grazing cattle, since the type of supplement, previous supplementation and gender class interfere with their behaviour. |
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Ingestive diurnal behaviour of grazing beef cattleComportamento ingestivo diurno de bovinos de corte em pastejoConcentrate SupplementEthologyIntakeRuminating.ConsumoEtologiaRuminaçãoSuplementoConcentrado.Three experiments were conducted with the objective of evaluating the effects of supplementation (concentrate or mineral supplementation), supplementation strategy (continuous or strategic supplementation) and gender class on the ingestive and diurnal behaviour of grazing beef cattle. To evaluate the effect of the supplementation (Experiment 1) and the gender class (Experiment 3) on their diurnal behaviour, behaviour visualisations were performed by two people at observation stations outside the picket area with the aid of binoculars. The animal behaviour was classified as: supplement intake, grazing, water intake, standing ruminating, standing idle, lying ruminating, lying idle and walking. To evaluate the effect of the supplementation strategy on the ingestive behaviour of the supplement (Experiment 2), refusals of the supplement were weighed for six consecutive days at different times (20, 40, 60, 90, 120, 180, 240, 480 and 1,440 minutes) after the concentrate was supplied. The intake of concentrate per animal, at each observation time, was calculated by subtracting the weight of the scraps at that time from the total weight of the batch of supplement provided on the day, and dividing the result by the number of animals in each batch. Finally, a logistic model was adjusted for each treatment. A 10% significance level was adopted for all statistical procedures. Concentrate supplementation reduced the time that the animals spent grazing. The continuous supplementation strategy affected the uniformity of the supplement intake speed, without affecting the average speed or the total supplement intake. The gender class of the animals also influenced their diurnal behaviour, castrated males spent more time lying, compared to females. The specificities of cattle behaviour should be considered when delineating the supplementation of grazing cattle, since the type of supplement, previous supplementation and gender class interfere with their behaviour.O objetivo com este trabalho foi avaliar o efeito da suplementação (concentrada ou mineral), da estratégia de suplementação (contínua ou somente nas águas) e da classe de gênero dos animais sobre o comportamento ingestivo diurno de bovinos de corte em pastejo. Para avaliação do efeito da suplementação (Experimento 1) e da classe sexual dos animais (Experimento 3) sobre o comportamento diurno, foram realizadas visualizações do comportamento animal por dois observadores treinados em estação de observação ao lado dos piquetes onde encontravam-se os animais, com auxílio de binóculos. O comportamento animal foi classificado como: consumindo suplemento, pastejando, ingerindo água, em pé ruminando, em pé em ócio, deitado ruminando, deitado em ócio e caminhando. Para avaliação do efeito da estratégia de suplementação sobre o comportamento ingestivo de suplemento (Experimento 2), as sobras do suplemento foram pesadas durante seis dias consecutivos em diferentes horários (20, 40, 60, 90, 120, 180, 240, 480 e 1.440 minutes) após o fornecimento de suplemento. e, para cada tratamento, ajustou-se um modelo logístico. O consumo de suplemento concentrado por animal, a cada tempo de observação foi calculado subtraindo-se o peso das sobras naquele momento do peso total do suplemento fornecido ao lote no dia, e dividindo-se o resultado pelo número de animais em cada lote. Por fim, ajustou-se um modelo logístico para cada tratamento. Adotou-se um nível de significância de 10% para todos os procedimentos estatísticos. O fornecimento de suplemento concentrado reduziu o tempo de pastejo. A suplementação concentrada contínua afetou a uniformidade da velocidade de consumo, sem afetar a velocidade média ou o total consumido de suplemento. A classe de gênero dos animais também influenciou seu comportamento diurno, machos castrados despenderam maior tempo deitados quando comparados às fêmeas. As especificidades do comportamento de bovinos devem ser consideradas ao delinear-se a suplementação de bovinos em pastejo, uma vez que o tipo de suplemento, a suplementação prévia e a classe de gênero interferem com o comportamento dos mesmos.UEL2020-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3718610.5433/1679-0359.2020v41n4p1335Semina: Ciências Agrárias; Vol. 41 No. 4 (2020); 1335-1344Semina: Ciências Agrárias; v. 41 n. 4 (2020); 1335-13441679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/37186/27352Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessLima, Josilaine Aparecida da CostaFernandes, Henrique JorgeSilva, Aline Gomes daFranco, Gumercindo LorianoRosa, Edneia PereiraFalcão, Yasmin dos SantosPaiva, Luísa Melville2022-10-07T16:42:59Zoai:ojs.pkp.sfu.ca:article/37186Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-07T16:42:59Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Ingestive diurnal behaviour of grazing beef cattle Comportamento ingestivo diurno de bovinos de corte em pastejo |
title |
Ingestive diurnal behaviour of grazing beef cattle |
spellingShingle |
Ingestive diurnal behaviour of grazing beef cattle Lima, Josilaine Aparecida da Costa Concentrate Supplement Ethology Intake Ruminating. Consumo Etologia Ruminação Suplemento Concentrado. |
title_short |
Ingestive diurnal behaviour of grazing beef cattle |
title_full |
Ingestive diurnal behaviour of grazing beef cattle |
title_fullStr |
Ingestive diurnal behaviour of grazing beef cattle |
title_full_unstemmed |
Ingestive diurnal behaviour of grazing beef cattle |
title_sort |
Ingestive diurnal behaviour of grazing beef cattle |
author |
Lima, Josilaine Aparecida da Costa |
author_facet |
Lima, Josilaine Aparecida da Costa Fernandes, Henrique Jorge Silva, Aline Gomes da Franco, Gumercindo Loriano Rosa, Edneia Pereira Falcão, Yasmin dos Santos Paiva, Luísa Melville |
author_role |
author |
author2 |
Fernandes, Henrique Jorge Silva, Aline Gomes da Franco, Gumercindo Loriano Rosa, Edneia Pereira Falcão, Yasmin dos Santos Paiva, Luísa Melville |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Lima, Josilaine Aparecida da Costa Fernandes, Henrique Jorge Silva, Aline Gomes da Franco, Gumercindo Loriano Rosa, Edneia Pereira Falcão, Yasmin dos Santos Paiva, Luísa Melville |
dc.subject.por.fl_str_mv |
Concentrate Supplement Ethology Intake Ruminating. Consumo Etologia Ruminação Suplemento Concentrado. |
topic |
Concentrate Supplement Ethology Intake Ruminating. Consumo Etologia Ruminação Suplemento Concentrado. |
description |
Three experiments were conducted with the objective of evaluating the effects of supplementation (concentrate or mineral supplementation), supplementation strategy (continuous or strategic supplementation) and gender class on the ingestive and diurnal behaviour of grazing beef cattle. To evaluate the effect of the supplementation (Experiment 1) and the gender class (Experiment 3) on their diurnal behaviour, behaviour visualisations were performed by two people at observation stations outside the picket area with the aid of binoculars. The animal behaviour was classified as: supplement intake, grazing, water intake, standing ruminating, standing idle, lying ruminating, lying idle and walking. To evaluate the effect of the supplementation strategy on the ingestive behaviour of the supplement (Experiment 2), refusals of the supplement were weighed for six consecutive days at different times (20, 40, 60, 90, 120, 180, 240, 480 and 1,440 minutes) after the concentrate was supplied. The intake of concentrate per animal, at each observation time, was calculated by subtracting the weight of the scraps at that time from the total weight of the batch of supplement provided on the day, and dividing the result by the number of animals in each batch. Finally, a logistic model was adjusted for each treatment. A 10% significance level was adopted for all statistical procedures. Concentrate supplementation reduced the time that the animals spent grazing. The continuous supplementation strategy affected the uniformity of the supplement intake speed, without affecting the average speed or the total supplement intake. The gender class of the animals also influenced their diurnal behaviour, castrated males spent more time lying, compared to females. The specificities of cattle behaviour should be considered when delineating the supplementation of grazing cattle, since the type of supplement, previous supplementation and gender class interfere with their behaviour. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/37186 10.5433/1679-0359.2020v41n4p1335 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/37186 |
identifier_str_mv |
10.5433/1679-0359.2020v41n4p1335 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/37186/27352 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 41 No. 4 (2020); 1335-1344 Semina: Ciências Agrárias; v. 41 n. 4 (2020); 1335-1344 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1750315430555156480 |