Estimate of genetic parameters for carcass traits and visual scores inmeat sheep using Bayesian inference via threshold and linear models

Filho, Luiz Antônio Silva Figueiredo; Sarmento, José Lindenberg Rocha; Ó, Alan Oliveira do; Santos, Natanael Pereira da Silva; Sena, Luciano Silva; Júnior, Antônio de Sousa

doi:10.1590/0103-8478cr20160174

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Examples of low heritability have been found for the traits of plasma urea concentration, used as an indicator of nitrogen utilization and excretion ( 62 ), and the number of eggs per gram of feces (a worm-resistance trait) ( 63 , 64 ). Nevertheless, medium to high heritability was identified in carcass characteristics, fatty acid profile ( 60 , 65 ), growth ( 66 , 67 ), worm resistance, and FAMACHA grade ( 63 , 67 ).…”

Section: Discussionmentioning

confidence: 99%

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

2022

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This study identifies the number of publications that presented technologies used in the production systems of Santa Inês sheep in the last 5 years (2017–2021) carried out in Brazil. Therefore, the objective was to identify where we are in terms of knowledge about technologies in different fields (health, reproduction, animal breeding, behavior and welfare, nutrition and feeding, forage and pasture, carcass and meat quality, and economics and management of livestock systems). After rigorous selection, 114 studies were appointed and classified by knowledge field, and the main approaches within each theme were evaluated, pointing out research gaps. Most technologies have been in northeastern states. However, government agencies should develop public policies to disseminate techniques in rural areas because the production system in this region is still subsistence. This study highlighted the need for works that present management practices and tools that impact the improvement of animal welfare. Agro-industrial by-products have been widely used as an alternative for sheep feeding. However, economic feasibility analyses are recommended with these foodstuffs to substantiate their use as an option to reduce production costs. There is a lack of research allusive to the management of production systems, especially those related to estimates of economic feasibility indicators.

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Section: Discussionmentioning

confidence: 99%

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

2022

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“…The genes controlling LSB in any parity may differ from another; therefore, each parity must be treated as a different trait (Noguera et al,2003;Roeche et al,1995). The Bayesian approach via the Gibbs sampling has been used to estimate genetic parameters of LSB and birth weight, body weight, and LSB, carcass traits and visual scores, survival, body condition score, wool shedding, worm resistance, wool and growth traits, and daily gain traits in some populations of sheep (Latifi et al, 2017;Yadollahi et al, 2019;Yazdi et al,1999;Ghavi Hossein-Zadeh., 2010;Júnior et al, 2017;King et al, 2006;Alves et al, 2016;Vargas Jurado et al,2016;Ciappesoni et al, 2013;Gowane et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Bayesian threshold analysis of litter size in sheep

Mortazavi

Alijani

Ghaderi–Zefrehei

et al. 2022

Rev. colomb. cienc. pecu.

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This unedited manuscript has been accepted by RCCP for future publication and is provisionally published on our website. The manuscript will undergo copyediting, typesetting, and galley review before final publication. Please note that this advance version may differ from the final version. Bayesian threshold analysis of litter size in sheep Análisis de umbral bayesiano del tamaño de la camada en ovejas Análise de limiar bayesiano do tamanho da ninhada em ovinos

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“…A utilização da ultrassonografia alia eficiência e praticidade ao processo de avaliação de carcaça, ao reduzir o tempo necessário para a coleta de dados (Santana et al, 2012). A técnica não deixa resíduos nocivos na carne e fornece informações qualitativas e quantitativas precisas e objetivas da composição corporal do animal vivo (Pinheiro et al, 2010;Figueiredo Filho et al, 2017). Porém, a desuniformidade nas mensurações ultrassonográficas nos animais acarreta problemas na interpretação da avaliação de carcaça.…”

Section: Introductionunclassified

Correção de medida ultrassonográfica de carcaça em coelhos usando modelo linear misto com covariáveis

Santos

Guerra

Biagiotti³

et al. 2019

Arq. Bras. Med. Vet. Zootec.

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RESUMO Objetivou-se avaliar a correção da medida ultrassonográfica da área do músculo Longissimus dorsi, em coelhos da raça Nova Zelândia, pela análise de covariância usando modelos mistos. Foram realizadas análises em delineamento em blocos completos ao acaso, com cinco tratamentos (operadores) e seis blocos (animais), considerando na análise: a inexistência de covariáveis; a covariável comprimento de olho de lombo; a covariável profundidade de olho de lombo; e as duas covariáveis juntas. Como os animais são uma amostra aleatória, o efeito de bloco foi considerado como aleatório. Consideraram-se as covariáveis como medidas com efeito fixo sem erro, independentemente do tratamento e do comportamento linear. As estatísticas de critério de decisão CV%, R ² e R ¯ ² evidenciaram relação direta entre si e podem ser consideradas para avaliar a precisão experimental em ensaios com avaliação de carcaças. Os valores das estatísticas AIC, BIC e AICC apresentam coerência com a interpretação dos critérios de decisão e indicam que o modelo com duas covariáveis proporciona resultados acurados. A inclusão das covariáveis complementa o controle de local com melhoria na precisão do experimento. A utilização das medidas ultrassonográficas de profundidade e comprimento corrige a média da área do músculo Longissimus dorsi avaliado por diferentes operadores.

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Estimate of genetic parameters for carcass traits and visual scores inmeat sheep using Bayesian inference via threshold and linear models

Cited by 3 publications

References 2 publications

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

Bayesian threshold analysis of litter size in sheep

Correção de medida ultrassonográfica de carcaça em coelhos usando modelo linear misto com covariáveis

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