Temperament of Nelore growing-steers receiving supplementation in grazing system: Performance, ultrasound measures, feeding behavior, and serum parameters

Francisco, C. L.; Castilhos, André Michel de; Silva, Daiane C.M.; Silva, Fabiola M.; Meirelles, Paulo Roberto de Lima; Cooke, Reinaldo F; Jorge, André Mendes

doi:10.1016/j.livsci.2020.104203

Cited by 7 publications

(7 citation statements)

References 61 publications

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“…According to their results, Bos taurus steers with the calmest temperament had 0.19 kg/day greater ( p < 0.05) average daily gain than steers with the most excitable temperaments. Several other authors reported that animals with calm temperament have better performance than excitable animals [ 30 , 31 , 32 ], whether in grazing [ 33 , 34 , 35 ] or in feedlot systems [ 30 , 33 , 36 ]. Animals that are fearful and move away from handlers are less productive [ 37 , 38 ], and reduced growth is considered to be the consequence of a series of acute or chronic responses to human presence [ 39 , 40 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Different Finishing Strategies and Steer Temperament on Animal Welfare and Instrumental Meat Tenderness

Campo

Manteca

Lima

et al. 2021

Animals

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The aim of this experiment was to evaluate the effect of different fattening systems from pasture to concentrate and temperament on animal welfare (AW) and meat quality (MQ). Eighty-four Hereford steers were randomly assigned to the following groups: T1, pasture (4% of animal live weight: LW); T2, pasture (3% LW) plus concentrate (0.6% LW); T3, pasture (3% LW) plus concentrate (1.2% LW); T4, an ad libitum concentrate treatment. Temperament was assessed by three individual tests: crush score, flight time, and exit speed, building a multicriterial temperament index (TIndex). The flight zone was also registered for each treatment. AW was assessed through the integration of indicators of productivity, physiology, and behavior, as well as by monitoring the health status within each treatment. Shear force was registered for MQ. Differences in average daily gain were due to the different energetic composition of the diets (T4 > T3 > T2 > T1) and were not attributable to animal welfare problems. Animals from T4 had the higher average daily gain (ADG) but welfare was negatively affected, being evident through physiological indicators, the restriction or deprivation of relevant behaviors, diet-related diseases, and mortality. T1, T2, and T3 did not appear to compromise animal welfare. However, strict preventive measures and monitoring should be taken during the habituation process and when using any new diet that includes concentrate, because of possible dietary diseases. Shear force values were lower in T1. None of the animals in our experiment were excitable or aggressive, but there was a positive response to handling in all treatments. In addition, regardless of diet, calmer animals had higher average daily gain and lower shear force values; thus, temperament appears to have a significant influence on productivity and meat quality.

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Section: Resultsmentioning

confidence: 99%

Effect of Different Finishing Strategies and Steer Temperament on Animal Welfare and Instrumental Meat Tenderness

Campo

Manteca

Lima

et al. 2021

Animals

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“…Different techniques such as the flight distance test (Silveira et al, 2008), the temperament score (Cooke et al, 2017), the scale behaviour score (Vetters et al, 2013;Cooke et al, 2017;Francisco et al, 2020), and exit speed (Cooke, 2014;Bruno et al, 2018) can be used to measure cattle temperament.…”

Section: Introductionmentioning

confidence: 99%

Medidas comportamentais e fisiológicas: correlação e relevância para avaliação do bem-estar de bovinos de corte

Jardim,

Silveira,

Oliveira

et al. 2024

Sem. Ci. Agr.

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Este trabalho investigou a correlação entre o escore de balança e distância de fuga com os indicadores fisiológicos de estresse e sua relevância para avaliações de bem-estar de bovinos de corte. Comparou-se pesquisa de glicemia plasmática por exame laboratorial com pesquisa em sangue capilar medida por glicosímetro portátil para testar/validar metodologia para bovinos. Foram estudados 36 bovinos distribuídos em dois tratamentos, onde cada animal foi considerado uma unidade experimental. Os grupos foram formados aleatoriamente com 18 bovinos cada, sendo esses avaliados por 490 dias. Foi realizada análise descritiva (média, desvio padrão e coeficiente de variação), análise de medidas repetidas no tempo e estudo de correlação de Pearson seguido de teste de aleatorização. O efeito dos tratamentos foi mensurado pelos indicadores distância de fuga, escore composto de balança, glicemia plasmática, glicemia capilar e cortisol sanguíneo, avaliados em repetições no tempo. Os resultados demonstraram que escore composto de balança e a distância de fuga são medidas moderadamente (0.57414) associadas enquanto escore composto de balança, glicose capilar (0.63870), glicose plasmática (0.63386) e cortisol (0.62329) estão altamente correlacionadas. Escore composto de balança, glicose e cortisol são indicadores confiáveis para determinação do grau de bem-estar dos animais. O glicosímetro portátil demonstrou precisão na determinação dos níveis glicêmicos em bovinos.

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“…In this sense, it is possible to classify cattle according to the level of responsiveness, from calm to excitable, through temperament evaluations (Burrow et al, 1988). Research has demonstrated the impact of temperament on growth, performance, feeding efficiency, carcass characteristics, and meat quality in beef cattle (Francisco et al, 2015;Willian et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…More excitable temperament impacts not only meat quality (Moura et al, 2021) but it also has a direct effect on beef production efficiency (Francisco et al, 2015;Willian et al, 2019). Therefore, understanding the factors that negatively impact animal temperament is of great interest to minimize losses associated with undesired animal behavior, which can lead to carcass bruising and injury.…”

Section: Introductionmentioning

confidence: 99%

Effects of animal type, handling, and transportation conditions on beef cattle temperament pre-slaughter

Vaz

Silva

Ghedini

et al. 2023

Arq. Bras. Med. Vet. Zootec.

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This study aimed to investigate the effects of animal type, on-farm handling, and transport conditions on temperament of beef cattle pre-slaughter. The study evaluated 4,061 cattle batches, averaging 49 animals, with a total of 199,026 cattle. Temperament was evaluated through a behavioral assessment carried out based on the temperament shown by cattle when approached by humans. One of three different temperament scores were assigned to each batch: calm, anxious, or excitable. Excitable temperament was reported in animals subjected to long transport time and distance and high loading density. The degree of carcass fatness was higher in calm animals, followed by anxious animals, with the excited temperament animals having the lowest carcass fatness degree. Older animals showed more excitable temperament, while younger animals showed calmer temperament. The excitable temperament was more evident in horned animals in relation to polled animals. Animal temperament was more reactive in batches with older cattle, low carcass fatness degree, and with more than 20% horned animals. Good handling and loading facilities and procedures at the farm contributed to adequate cattle temperament expression prior to slaughter.

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Temperament of Nelore growing-steers receiving supplementation in grazing system: Performance, ultrasound measures, feeding behavior, and serum parameters

Cited by 7 publications

References 61 publications

Effect of Different Finishing Strategies and Steer Temperament on Animal Welfare and Instrumental Meat Tenderness

Effect of Different Finishing Strategies and Steer Temperament on Animal Welfare and Instrumental Meat Tenderness

Medidas comportamentais e fisiológicas: correlação e relevância para avaliação do bem-estar de bovinos de corte

Effects of animal type, handling, and transportation conditions on beef cattle temperament pre-slaughter

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