Comportamento de bovinos de corte em pista de remate

Silveira, Isabella Dias Barbosa; Fischer, Vívian; Mendonça, Gilson de

doi:10.1590/s0103-84782006000500029

Cited by 8 publications

(8 citation statements)

References 12 publications

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“…Bianchini et al (26) studied young noncastrated zebu, continental, and crossbred steers and found appropriate declines in pH and temperature, without variations between genetic groups, but found variations in temperature and pH in the different muscles. Within the females, however, animals characterized as zebu showed higher pH values than the taurine ones (P<0.05), indicating higher susceptibility to stress of animals with this genetic inheritance (11) .…”

Section: Resultsmentioning

confidence: 88%

“…Stressful situations intensify according to sex (9) , species, breed, and bloodline (10,11) ; category and age (12) ; body size, anatomical conditions and fatness (13,14) ; and transport and finishing system (15,5) . Thus, reducing the animal stress is a measure of great importance because, in addition to losses in meat quality, stressed animals are more prone to physical injuries, with consequent economic losses.…”

Section: Introductionmentioning

confidence: 99%

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Breed and Carcass Characteristics on Losses by Bruises and Meat Ph in Beef of Steers and Culling Cows

Mendonça

Vaz

et al. 2017

Ciênc. anim. bras.

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This study aimed to evaluate the effects of the genetic group, maturity, and fatness score of cattle on losses by bruises and final pH value of the carcass of steers and cows. The number of bruises and the final pH value of the carcasses were evaluated as response variables in function of the genetic group, the physiological maturity, and the fatness score. Increases of 174.6 and 159.4% cases of bruises were found when maturity evolved from deciduous to eight teeth for males and females, respectively. The carcasses with moderate fat showed a higher number of bruises than scarce-fat carcasses only in males. Bruises increased by 37.93 and 23.52% for the zebu animals compared with taurine cattle, for males and females, respectively. As regards the pH values, there were variations between sexes, with females having, on average, higher pH, which differed between zebu and taurine cattle. Two-teethed males displayed higher pH values than four-teethed animals, while four and six-teethed females presented higher values than the others. Physiological maturity, fatness score, and genetic group influence losses by bruises in bovine carcasses, with older animals being more susceptible to bruises. Zebu animals being are also more susceptible. Females are more susceptible to final pH alterations in the carcass, mainly in the carcasses of zebu animals. Keywords: animal welfare; carcass classification; meat quality. ResumoObjetivou-se avaliar os efeitos de grupo genético, maturidade e escore de gordura de acabamento de bovinos sobre perdas por contusões e valor do pH final da carcaça de bovinos machos e fêmeas. O 2 Cienc. anim. bras., Goiânia, v.18, 1-10, e-45295, 2017Breed and carcass characteristics on losses by bruises… número de contusões e o valor final do pH das carcaças foram avaliados como variável resposta em função do grupo genético, da maturidade fisiológica e do escore de gordura de acabamento. Acréscimos de 174,6 e 159,4% no número de contusões foram verificados quando a maturidade evoluiu de animais dentes de leite para oito dentes para machos e fêmeas, respectivamente. Apenas carcaças de machos com gordura mediana apresentaram maior nível de lesões que gordura escassa. Ocorreram aumentos de 37,93 e 23,52% de contusões para os animais zebuínos, quando comparados a taurinos, para machos e fêmeas, respectivamente. Com relação aos valores de pH, ocorreram variações entre os sexos, tendo as fêmeas, na média, pH mais elevado diferindo entre zebuínos e taurinos. Machos de dois dentes apresentaram valores mais elevados que os de quatro dentes, enquanto as fêmeas de quatro e seis foram superiores às demais. As perdas por contusões em carcaças bovinas são influenciadas pela maturidade fisiológica, o escore de gordura e pelo grupo genético e os animais mais velhos são mais susceptíveis às contusões, assim como os animais zebuínos também são mais susceptíveis. Fêmeas são mais susceptíveis às alterações no pH final das carcaças, principalmente quando a carcaça é proveniente de animais zebuínos. Palavras-chave: bem-esta...

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Section: Resultsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Breed and Carcass Characteristics on Losses by Bruises and Meat Ph in Beef of Steers and Culling Cows

Mendonça

Vaz

et al. 2017

Ciênc. anim. bras.

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“…It shows that sex did not influence the movement of the animals. Silveira et al (2006) found different results when assessing cattle's behavior on auction tracks. Females had higher Entrance and Movement scores.…”

Section: Characterization Of the Animals During The Auctionmentioning

confidence: 97%

“…Grandin (2000) and Lanier (2000) associate the increased movement of the animals to the aversive stimuli they were subject to. Silveira et al (2006) showed that zebu cattle moved more intensely in the auction ring than cattle of European origin. Table 10 presents the data on the entrance in the auction ring according to sex.…”

Section: Characterization Of the Animals During The Auctionmentioning

confidence: 99%

Handling, reactivity and price of beef cattle

Carvalho

Oliveira

Costa

et al. 2020

JABB

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Given the importance of cattle breeding for the Brazilian economy, as well as the growing concern with animal welfare, studies that clearly and objectively approach the way cattle are handled during auctions become necessary. This study aims, hence, at assessing the influence of cattle handling on the reactivity of animals at the time of arrival at the exhibition park. We also aimed to evaluate the impact of reactivity and visual aspects on the price for animals at auctions in the northern region of the state of Minas Gerais. We observed 241 lots of commercial and 43 lots of pedigree cattle in loco, assessing the type of handling and the cattle's behavior when arriving at the exhibition park, accommodation in the corral and loading to the destination. Upon arrival, commercial animals were more reactive than pedigree cattle due to the change of environmentexhibition park as opposed to their original habitat, and also to the number of visitors who induce stress and cause the animals to retreat. Commercial and pedigree females were more reactive than males upon arrival and loading, particularly when close to their offspring. Commercial animals that scored high in aggressiveness had smaller flight zones, for they run toward fences when threatened. Young commercial animals entered the auction ring with no external help due to anxiety and restlessness. The visual aspect influences the price in virtual markets.

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“…JONES & GOSLING (2005) chamaram a atenção para a falta de padronização nos termos utilizados para descrever o temperamento em cães. Nas espécies de produção, principalmente bovinos, há também falta de padronização e definição dos escores utilizados (KILGOUR et al, 2006;SILVEIRA et al, 2006). Um bom teste de temperamento será relevante seguro e discriminatório.…”

Section: Introductionunclassified