2008
DOI: 10.1590/s1516-35982008000600007
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Falha na primeira mamada em bezerros Guzerá: fatores predisponentes e parâmetros genéticos

Abstract: RESUMO -Em decorrência da elevada ocorrência (18%) de bezerros Guzerá que não mamaram por conta própria em suas mães (falha na primeira mamada), foram avaliados os fatores associados a estas falhas, sua influência na mortalidade e parâmetros genéticos para falha na primeira mamada (FPM). Dos 1.527 bezerros Guzerá nascidos de 1992 a 2004, 279 apresentaram FPM. Os efeitos fixos foram estudados utilizando o procedimento GENMOD-SAS com função de ligação probit. Parâmetros genéticos para FPM foram estimados por máx… Show more

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Cited by 11 publications
(14 citation statements)
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References 12 publications
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“…We are not able to prove that high LST and LS result in delaying or reducing colostrum intake, and hence immunoglobulines. However, considering the hypothesis that this was the case, the calves' survival might be in danger (Schmidek et al, 2008). The possible delay in colostrum caused by the presence of black vultures could be, in addition to the impact of direct injuries, an important cause of calves reduced welfare and economical problems.…”
Section: Assessment Of Attacks and Injuries From Black Vulturesmentioning
confidence: 99%
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“…We are not able to prove that high LST and LS result in delaying or reducing colostrum intake, and hence immunoglobulines. However, considering the hypothesis that this was the case, the calves' survival might be in danger (Schmidek et al, 2008). The possible delay in colostrum caused by the presence of black vultures could be, in addition to the impact of direct injuries, an important cause of calves reduced welfare and economical problems.…”
Section: Assessment Of Attacks and Injuries From Black Vulturesmentioning
confidence: 99%
“…The first suckling latency is crucial for calves' survival, as it has an important role in their immune capability (Edwards and Broom, 1979;Blum and Hammon, 2000). Hence, the general recommendation is that calves must suckle as early -E-mail: mpcosta@fcav.unesp.br as possible, and no later than 3 (Schmidek et al, 2008) to 6 h after being born Smith, 1993).…”
Section: Introductionmentioning
confidence: 99%
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“…According to Toledo (3) and Schmidek et al (4), an adequate analysis is necessary in order to evaluate the behavioral characteristics related to maternal abilities and a satisfactory lactation. Two aspects are outstanding: the survival of the calf (including the capacity of the cow to wean a calf every year) and the production of milk (considering production and sanitary characteristics).…”
Section: Introductionmentioning
confidence: 99%
“…Baixa produção de colostro pela mãe, manejo inadequado do colostro, ingestão inadequada de colostro pelo recém-nascido em função de morte ou rejeição da mãe, baixo peso ao nascer, prematuridade ao nascer, número de crias são alguns fatores que podem determinar a falha na transferência de imunidade passiva (ARGÜELLO et al, 2004;CASTRO et al, 2005CASTRO et al, , 2009FLAIBAN et al, 2009;ROOKE;BLAND, 2002;SANGILD, 2003;SCHMIDEK et al, 2008).…”
Section: Dados Internacionais De Catalogação Na Publicação Divisão Deunclassified