dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorDal-Farra, Rossano André
dc.creatorFries, Luiz Alberto
dc.creatorLobato, José Fernando Piva
dc.date2014-05-27T11:19:37Z
dc.date2016-10-25T18:15:19Z
dc.date2014-05-27T11:19:37Z
dc.date2016-10-25T18:15:19Z
dc.date1998-11-01
dc.date.accessioned2017-04-06T00:52:41Z
dc.date.available2017-04-06T00:52:41Z
dc.identifierRevista Brasileira de Zootecnia, v. 27, n. 6, p. 1092-1096, 1998.
dc.identifier0100-4859
dc.identifierhttp://hdl.handle.net/11449/65547
dc.identifierhttp://acervodigital.unesp.br/handle/11449/65547
dc.identifier2-s2.0-0347204753.pdf
dc.identifier2-s2.0-0347204753
dc.identifierhttp://www.revista.sbz.org.br/artigo/index.php?artigo=2024
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/887262
dc.descriptionThe aim of the study was to estimate adjustment factors to be used in genetic selection programs. Measurement data of scrotal circumference Nellore breed bulls from different herds raised on Brazilian tropical pasture conditions, totalizing 8934 animals of the 346 contemporary groups (CG) were analyzed. The means and standard deviations of real scrotal circumference (PEREAL), age at yearling weight (ISOB) and yearling weight adjusted to 550 days (PPD550), and age-of-dam were, respectively: 28.44 ± 3.35 cm; 589.04 ± 42.66 days; 333.03 ± 36.25 kg and 5.84 ± 3.01 years. The segmented polynomials (Spline functions) were used to estimate the adjustment factors for age and yearling weight, being used 550 days and 330 kg for age and weight, respectively, as standard values. Anticipation scrotal circumference measurements for 520-550 days could increase the selection efficiency for sexual precocity.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languagepor
dc.relationRevista Brasileira de Zootecnia
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectScrotal circumference to weight ratio
dc.subjectSegmented polynomials
dc.subjectSexual precocity
dc.subjectSpline functions
dc.subjectAnimalia
dc.titleFatores de correção do perímetro escrotal para efeitos de idade e peso ao sobreano de tourinhos nelore
dc.typeOtro


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