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Petrini,Juliana; Dias,Raphael Antonio Prado; Pertile,Simone Fernanda Nedel; Eler,Joanir Pereira; Ferraz,José Bento Sterman; Mourão,Gerson Barreto. |
The objective of this work was to assess the degree of multicollinearity and to identify the variables involved in linear dependence relations in additive-dominant models. Data of birth weight (n=141,567), yearling weight (n=58,124), and scrotal circumference (n=20,371) of Montana Tropical composite cattle were used. Diagnosis of multicollinearity was based on the variance inflation factor (VIF) and on the evaluation of the condition indexes and eigenvalues from the correlation matrix among explanatory variables. The first model studied (RM) included the fixed effect of dam age class at calving and the covariates associated to the direct and maternal additive and non-additive effects. The second model (R) included all the effects of the RM model except the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bos taurus x Bos indicus; Animal breeding; Beef cattle; Correlation matrix; Crossbreeding; Variance inflation factor. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012001200010 |
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Rego,Fabíola Cristine de Almeida; Belan,Laís; Pertile,Simone Fernanda Nedel; Lima,Lisiane Dorneles de; Ludovico,Agostinho; Zundt,Marilice; Lopes,Flávio Guiselli; Porto,Petrônio Pinheiro. |
ABSTRACT: This study aimed to evaluate the effects of replacing oat hay with coffee husk in the diet of lambs on the intake and apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), non-fiber carbohydrate (NFC), neutral detergent fiber (NDF), and acid detergent fiber (ADF). The experimental design was 4×4 Latin square with four levels of replacement of oat hay with coffee husk (0, 7.5, 15, and 22.5%) with four individually housed Texel sheep. Intake and apparent digestibility coefficients were measured at four periods of 12 days. All orts and feces were collected, weighed, homogenized, and sampled. The use of coffee husk at up to 22.5% of the total DM in the diet of lambs improved the intake of nutrients.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Byproduct; Dry matter; Fiber; Protein; Sheep. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100655 |
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