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Xylanase for meat-type quails from 15 to 35 days old R. Bras. Zootec.
Grecco,Érica Travaini; Marcato,Simara Márcia; Oliveira-Bruxel,Taciana Maria de; Stanquevis,Caroline Espejo; Grieser,Daiane de Oliveira; Finco,Eline Maria; Zancanela,Vittor; Ferreira,Mariana Fátima Zanon.
ABSTRACT The objective of this study was to evaluate the effect of the supplementation of two xylanases in the diet of meat-type quail on performance, morphology of the intestinal mucosa, metabolization of nutrients, and carcass yield. The experimental design was a completely randomized 2×3+1 factorial arrangement [two metabolisable energy reductions (70 and 140 kcal/kg), with or without the inclusion of two xylanases (A and B), plus a control treatment without xylanase), totalling seven treatments with five replicates and 42 quail each. Total excreta were collected at 28 days of age to determine the metabolisable coefficients of dry matter, crude protein (CP), neutral detergent fibre (NDF), and gross energy (GE). There was no interaction between the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbohydrases; Carcass yield; Energy; Enzymes; Quail production.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100509
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Estimation of growth parameters of body weight and body nutrient deposition in males and females of meat- and laying-type quail using the Gompertz model R. Bras. Zootec.
Grieser,Daiane de Oliveira; Marcato,Simara Márcia; Furlan,Antonio Claudio; Zancanela,Vittor; Vesco,Ana Paula Del; Batista,Eliany; Ton,Ana Paula Silva; Perine,Taynara Prestes.
ABSTRACT The objective of this study was to estimate the growth parameters of body weight and body nutrient deposition in males and females of one meat- (Coturnix coturnix coturnix) and two laying-type quail strains (Coturnix coturnix japonica), designated either yellow or red, using the Gompertz model. A total of 1350 quail from 1 to 42 days of age were used and they were distributed in a completely randomized design, with five replications for each strain. The parameters of body weight and body composition of the quail were analyzed weekly and evaluated using the Gompertz equation; growth rates and body nutrient deposition were evaluated through derivative equations. The three strains evaluated showed differences in their potential, growth rates, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body protein; Development of birds; Maturity rate; Nonlinear model; Weight at maturity.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100504
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Adjustment of nonlinear models and growth parameters and body nutrient deposition in meat-type and laying quail R. Bras. Zootec.
Grieser,Daiane de Oliveira; Marcato,Simara Márcia; Furlan,Antonio Claudio; Zancanela,Vittor; Gasparino,Eliane; Vesco,Ana Paula Del; Lima,Nayara Cristine Freitas; Pozza,Paulo Cesar.
ABSTRACT The objective of this study was to determine the adjustment quality of non-linear models and estimate the growth parameters and body chemical composition of a meat-type quail strain (Coturnix coturnix coturnix) and two laying quail strains (Coturnix coturnix japonica), designated yellow and red. The study used 1500 quail, not sexed, distributed in a completely randomized design with three treatments and five repetitions. The experimental period was from 1-42 days of age. The birds were raised in a conventional system and fed ad libitum with a diet formulated to meet their nutritional requirements. Quail were weighed weekly, and a representative sample was slaughtered to evaluate their body chemical composition. The adjustment quality of the models...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body chemical deposition; Gompertz curve; Iterations; Residual mean square; Square sum of the regression residual.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100543
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Adjustment of four growth models through Bayesian inference on weight and body nutrient depositions in laying quail R. Bras. Zootec.
Finco,Eline Maria; Marcato,Simara Márcia; Furlan,Antonio Claudio; Rossi,Robson Marcelo; Grieser,Daiane de Oliveira; Zancanela,Vittor; Oliveira,Taciana Maria Moraes de; Stanquevis,Caroline Espejo.
ABSTRACT An experiment was conducted to estimate the parameters of the Gompertz, Brody, Logistic, and Von Bertalanffy equations through Bayesian inference and evaluate the potential for growth in terms of weight and body composition of laying female quail (Coturnix coturnix japonica). The weights and body compositions of the birds were obtained weekly (1-119 days), allowing the adjustment of the four equations by Bayesian inference. The parameters mature weight (β1), integration constant (β2), maturity rate (β3), and their credibility intervals in four models on body weight and body components were properly estimated by Bayesian inference to describe the body growth in laying quail. The inflection point was determined by the 1st and 2nd derivatives of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adjust quality; Development; Maturity rate; Nonlinear models; Weight at maturity.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200737
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Calcium requirement and vitamin D supplementation in meat-type quail at second stage of growth R. Bras. Zootec.
Perine,Taynara Prestes; Marcato,Simara Márcia; Furlan,Antonio Claudio; Grieser,Daiane de Oliveira; Zancanela,Vittor; Stanquevis,Caroline Espejo; Benites,Mariani Ireni; Euzébio,Tainara Ciuffi.
ABSTRACT An experiment was conducted to determine the required levels of supplementary vitamin D and calcium in meat-type quail (Coturnix coturnix sp) between 15 and 35 days old. The experiment was a 4 × 4 factorial design with four levels of calcium: 0.42, 0.58, 0.74, and 0.90% and four levels of vitamin D: 1,000; 2,000; 3,000; and 4,000 IU. Body weight and body weight gain increased linearly and feed conversion showed some linear improvement due to increased levels of Ca and vitamin D. The increased vitamin D levels resulted in a linear increase in feed intake. Calcium and vitamin D requirements in meat-type quail between 15 and 35 days of age is greater or equal to 0.90% Ca and greater or equal to 4,000 IU of vitamin D, probably because the experiment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone resistance; Nutritional requirement; Quail nutrition.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001100655
Registros recuperados: 5
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