Open Shed and Portable Pens versus Conventional Housing for Young Dairy Calves

Murley, W. Ray; Culvahouse, E.W.

doi:10.3168/jds.s0022-0302(58)91031-2

Cited by 12 publications

(9 citation statements)

References 3 publications

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“…The results of the studies of Jorgenson et al (1969) and of Hill et al (2011) confirm that the calves kept in the IHG had quicker body gains compared to the calves from the OHG. Different results were presented by Phillips (2004), who observed lower body gains in the calves from group housing (0.70 kg/d) in comparison to the calves from individual management system (0.88 kg/d), similarly as Razzaque et al (2009) and Murley & Culvahouse (1958).…”

Section: Discussionmentioning

confidence: 75%

Comparison of calves' rearing parameters in two different housing systems: indoor versus outdoor hutches

2013

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Abstract. The main aim of the study was to compare the rearing effect of calves kept outdoor in individual hutches and indoor in group pens. During the experiments, the following measure ments were carried out: body weight, daily gains, feed intake, morbidity and mortality. The study was conducted on 90 calves from 5th to 90th day of age; all calves were fed the same feed and according to the same schedule. Results revealed that during the first month, the calves from both groups achieved the same daily gains. However, older calves kept indoor were characterised by better daily gains, feed intake and as a result, body weight. The outdoor system has positive effect on morbidity, especially in case of pneumonia and diarrhoea. During the experiment, only two calves were lost (mortality rate – 2.2 %).

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Section: Discussionmentioning

confidence: 75%

Comparison of calves' rearing parameters in two different housing systems: indoor versus outdoor hutches

2013

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“…Em regiões de clima temperado, bezerros mantidos em abrigos móveis apresentam, em geral, consumo de concentrado semelhante (Murley & Culvahouse, 1958;Willett et al, 1968;Jorgenson et al, 1970;Fiems et al, 1998) ou superior (Mcknight, 1978) ao daqueles criados em baias. Em condições tropicais, no entanto, Campos et al (1992) observaram que animais mantidos em abrigos móveis durante o verão consumiram menor quantidade de concentrado em comparação àqueles criados em baias individuais.…”

Section: Tabela 1 -Dados Meteorológicos Obtidos Durante O Período Expunclassified

Desempenho, variáveis fisiológicas e comportamento de bezerros mantidos em diferentes instalações: época chuvosa

Cunha¹,

Campos

Pereira³

et al. 2007

R. Bras. Zootec.

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RESUMO -Objetivou-se avaliar o desempenho, o conforto térmico e o comportamento de bezerros mestiços Holandês × Zebu mantidos em abrigos móveis, sob sombrites ou a céu aberto durante a estação chuvosa do ano (dezembro a abril). Foram utilizados 24 bezerros mestiços do nascimento aos 70 dias de idade, distribuídos em blocos casualizados, nas seguintes instalações: abrigos móveis, telas de polipropileno e a céu aberto. Os animais mantidos a céu aberto apresentaram, à tarde, maior temperatura retal e maior frequência respiratória. Não foi observada influência dos tipos de instalação sobre as variáveis relacionadas ao comportamento, entretanto, os bezerros mantidos em abrigos móveis passaram a maior parte do tempo do lado de fora das instalações. As instalações não afetaram o desempenho dos animais. Nos três tipos de instalação, no período da tarde, os bezerros elevaram a frequência respiratória acima da faixa considerada fisiologicamente normal, o que caracteriza condição de desconforto térmico. Bezerros permanecem a maior parte do tempo do lado de fora dos abrigos móveis, mesmo nos horários de radiação solar mais intensa ou durante as horas de chuva. Bezerros mantidos em abrigos individuais, sob sombrites ou a céu aberto apresentam desempenhos semelhantes.Palavras-chave: abrigos móveis, consumo, frequência respiratória, ganho de peso, temperatura retal Performance, physiological and behavioral measurements of dairy calves in different housing systems: rainy season ABSTRACT -The objective of this trial was to evaluate performance, thermal comfort and behavior of crossbred Holstein x Zebu dairy calves kept in different housing systems during the rainy season (December to April). Twentyfour calves were raised from birth to 70 days of age in one of the following housing systems: hutches; shadecloth; or no shelter. Rectal temperature and respiratory rate measurements were taken twice a day (8:00 AM and 3:00 PM) when calves were 1, 4 and 9 weeks old. Respiratory rate was measured counting the number of respiratory movements per minute and rectal temperatures were taken with clinical thermometers. Behavior evaluation was done by visual observation of the animals every 10 min for a period of 24 h. There were no differences among the housing systems on body weight, average daily weight gain, starter intake and feed efficiency. Calves raised with no shelter showed increased rectal temperatures at the afternoon. It can be concluded that use of hutches might not be necessary considering that calves spent most of their time outside. Calves raised with no shelter had higher rectal temperatures and respiratory rates and were unable to maintain these variables under physiological conditions. Calves performance was satisfactory in all three housing systems evaluated.Key Words: hutches, intake, rectal temperature, respiratory rate, weight gain IntroduçãoA desregulamentação do mercado de leite e a abertura do comércio internacional de produtos lácteos na década de 90 forçaram os produtores brasileiros a se modernizarem rapidamente n...

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“…Na década de 1950, a utilização de instalações abertas era bastante difundida (Murley & Culvahouse, 1958) e alguns pesquisadores vislumbravam o uso de abrigos móveis em substituição aos galpões e estábulos na criação de bezerros. Os primeiros relatos sobre a utilização de abrigos móveis na criação de bezerros de rebanhos leiteiros datam desta década, quando Davis et al (1954) estudaram a possibilidade de bezerros serem criados ao ar livre.…”

Section: Introductionunclassified

“…Nos anos posteriores, muitas pesquisas foram realizadas para avaliar o desempenho de bezerros criados em abrigos móveis em condições de clima temperado (Murley & Culvahouse, 1958;Kurtz, 1961;Willett et al, 1968;Jorgenson et al, 1970;Freeman et al, 1975;Mcknight, 1978).…”

Section: Introductionunclassified

Desempenho, variáveis fisiológicas e comportamento de bezerros mantidos em diferentes instalações: época seca

Cunha¹,

Campos

Pereira³

et al. 2007

R. Bras. Zootec.

View full text Add to dashboard Cite

were raised from birth to 70 days of age in one of the following housing systems: (1 -hutches; 2 -shadecloth; or 3 -with no shelter. Calves raised with no shelter showed higher rectal temperatures and respiratory rates in the afternoon. It was also observed that calves spend most of the time outside the hutches. There were no differences among housing systems for behavior measurements as well as for body weight, average daily weight gain, starter intake, and feed efficiency. In all three housing systems calves used their latent heat loss mechanisms by increasing respiratory rates above normal range in the afternoon.Calves raised with no shelter showed increased rectal temperatures and respiratory rates and were not able to maintain these variables within normal physiological range. No significant differences in calf performance were observed across the three housing systems in the present study.

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Open Shed and Portable Pens versus Conventional Housing for Young Dairy Calves

Cited by 12 publications

References 3 publications

Comparison of calves' rearing parameters in two different housing systems: indoor versus outdoor hutches

Comparison of calves' rearing parameters in two different housing systems: indoor versus outdoor hutches

Desempenho, variáveis fisiológicas e comportamento de bezerros mantidos em diferentes instalações: época chuvosa

Desempenho, variáveis fisiológicas e comportamento de bezerros mantidos em diferentes instalações: época seca

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