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| 73. |  | HAYASHIDA, R.; QUEIROZ, A. P. de; BUENO, A. de F. Interação entre modos de liberação de Telenomus podisi: plantio direto (SPD) e convencional (SC). In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 16., 2019, Londrina. Controle biológico: da academia ao campo, rumo à sustentabilidade: anais. Londrina: Sociedade Entomológica do Brasil: Embrapa Soja: Universidade Estadual de Londrina, 2019. 495 p. Organizadores: Adeney de Freitas Bueno, Pedro Manuel Oliveira Janeiro, Michele Potrich, Geraldo Andrade Carvalho. p. 325.| Biblioteca(s): Embrapa Soja. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Acre. Para informações adicionais entre em contato com cpafac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
28/12/2021 |
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Data da última atualização: |
28/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SALES, M. F. L.; ROSA, B. L.; PALU, A. B.; MAIA, G. F. N.; MIRANDA, L. A.; PEIXOTO, R. M.; DINIZ, J. V. A. |
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Afiliação: |
MAYKEL FRANKLIM LIMA SALES, CPAF-AC; BRUNA LAURINDO ROSA, Federal University of Acre (Ufac); ALAN BURIN PALU, Federal University of Acre (Ufac); GERBSON FRANCISCO NOGUEIRA MAIA, Federal University of Acre (Ufac); LUCAS ALMEIDA MIRANDA, Federal University of Acre (Ufac); RENATO MESQUITA PEIXOTO, CNPq / Embrapa Goats and Sheep; JEFFERSON VIANA ALVES DINIZ, Federal Institute of Education, Science and Technology – Acre (IFAC). |
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Título: |
Productive performance and economic viability of beef cattle subjected to different castration methods in the Western Amazon. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Livestock Science, v. 251, 104633, Sept. 2021. |
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ISSN: |
1871-1413 |
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DOI: |
https://doi.org/10.1016/j.livsci.2021.104633 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to assess the productive performance and economic viability of intact, surgically castrated, and immunocastrated cattle. The experiment was completely randomized with 102 animals divided into three treatments: intact (control group), surgically castrated (group I), and immunocastrated (group II). Animal production indices, circulating testosterone levels, carcass yield and finishing, and profit generated by each method after slaughter were determined. Control group and immunocastrated animals showed a higher (p<0.05) total weight gain (TWG) than surgically castrated animals, with means of 181.85, 170.34, and 148.88 kg, respectively. Average daily weight gain (ADG) in immunocastrated was higher (p<0.05) than that obtained by surgically castrated, not differing (p<0.05) from intact animals, with means of 0.534, 0.466, and 0.570 kg/animal, respectively. The assessment of the degree of finishing showed that surgically castrated animals had an adequate fat deposition (three to six millimeters) and maturity. On the other hand, immunocastrated animals presented 50.0% of carcasses with tolerable classification, 36.11% desirable, and 13.89% undesirable. Control animals had a higher testosterone concentration than the other groups (p<0.05), with a mean of 128.56 ng/dL. Immunocastrated animals had a 60.91% reduction in testosterone concentration compared to control animals. However, these were significantly higher (p<0.05) than surgically castrated animals, which had a mean concentration of 12.34 ng/dL, representing a reduction of 90.4% in comparison with control animals. Therefore, immunocastration reduced the damages caused by surgical castration and qualitatively improved the carcass of Nellore animals, thus joining animal welfare and production. However, intact animals showed higher profitability. MenosThis study aimed to assess the productive performance and economic viability of intact, surgically castrated, and immunocastrated cattle. The experiment was completely randomized with 102 animals divided into three treatments: intact (control group), surgically castrated (group I), and immunocastrated (group II). Animal production indices, circulating testosterone levels, carcass yield and finishing, and profit generated by each method after slaughter were determined. Control group and immunocastrated animals showed a higher (p<0.05) total weight gain (TWG) than surgically castrated animals, with means of 181.85, 170.34, and 148.88 kg, respectively. Average daily weight gain (ADG) in immunocastrated was higher (p<0.05) than that obtained by surgically castrated, not differing (p<0.05) from intact animals, with means of 0.534, 0.466, and 0.570 kg/animal, respectively. The assessment of the degree of finishing showed that surgically castrated animals had an adequate fat deposition (three to six millimeters) and maturity. On the other hand, immunocastrated animals presented 50.0% of carcasses with tolerable classification, 36.11% desirable, and 13.89% undesirable. Control animals had a higher testosterone concentration than the other groups (p<0.05), with a mean of 128.56 ng/dL. Immunocastrated animals had a 60.91% reduction in testosterone concentration compared to control animals. However, these were significantly higher (p<0.05) than surgically castrated animals, which had a... Mostrar Tudo |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Análisis económico; Cattle productivity; Ganado de carne; Immunocastration; Imunocastração; Inmunocastración; Producción animal; Productividad ganadera; Senador Guiomard (AC); Western Amazon. |
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Thesagro: |
Análise Econômica; Gado de Corte; Gado Nelore; Produção Animal; Produtividade. |
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Thesaurus NAL: |
Animal production; Beef cattle; Economic analysis; Nellore. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03260naa a2200481 a 4500
001 2138507
005 2021-12-28
008 2021 bl uuuu u00u1 u #d
022 $a1871-1413
024 7 $ahttps://doi.org/10.1016/j.livsci.2021.104633$2DOI
100 1 $aSALES, M. F. L.
245 $aProductive performance and economic viability of beef cattle subjected to different castration methods in the Western Amazon.$h[electronic resource]
260 $c2021
520 $aThis study aimed to assess the productive performance and economic viability of intact, surgically castrated, and immunocastrated cattle. The experiment was completely randomized with 102 animals divided into three treatments: intact (control group), surgically castrated (group I), and immunocastrated (group II). Animal production indices, circulating testosterone levels, carcass yield and finishing, and profit generated by each method after slaughter were determined. Control group and immunocastrated animals showed a higher (p<0.05) total weight gain (TWG) than surgically castrated animals, with means of 181.85, 170.34, and 148.88 kg, respectively. Average daily weight gain (ADG) in immunocastrated was higher (p<0.05) than that obtained by surgically castrated, not differing (p<0.05) from intact animals, with means of 0.534, 0.466, and 0.570 kg/animal, respectively. The assessment of the degree of finishing showed that surgically castrated animals had an adequate fat deposition (three to six millimeters) and maturity. On the other hand, immunocastrated animals presented 50.0% of carcasses with tolerable classification, 36.11% desirable, and 13.89% undesirable. Control animals had a higher testosterone concentration than the other groups (p<0.05), with a mean of 128.56 ng/dL. Immunocastrated animals had a 60.91% reduction in testosterone concentration compared to control animals. However, these were significantly higher (p<0.05) than surgically castrated animals, which had a mean concentration of 12.34 ng/dL, representing a reduction of 90.4% in comparison with control animals. Therefore, immunocastration reduced the damages caused by surgical castration and qualitatively improved the carcass of Nellore animals, thus joining animal welfare and production. However, intact animals showed higher profitability.
650 $aAnimal production
650 $aBeef cattle
650 $aEconomic analysis
650 $aNellore
650 $aAnálise Econômica
650 $aGado de Corte
650 $aGado Nelore
650 $aProdução Animal
650 $aProdutividade
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAnálisis económico
653 $aCattle productivity
653 $aGanado de carne
653 $aImmunocastration
653 $aImunocastração
653 $aInmunocastración
653 $aProducción animal
653 $aProductividad ganadera
653 $aSenador Guiomard (AC)
653 $aWestern Amazon
700 1 $aROSA, B. L.
700 1 $aPALU, A. B.
700 1 $aMAIA, G. F. N.
700 1 $aMIRANDA, L. A.
700 1 $aPEIXOTO, R. M.
700 1 $aDINIZ, J. V. A.
773 $tLivestock Science$gv. 251, 104633, Sept. 2021.
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