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| Tizziani,Tarciso; Donzele,Rita Flávia Miranda de Oliveira; Donzele,Juarez Lopes; Balbino,Eric Márcio; Silva,Amanda Dione; Figueiredo,Érika Martins de; Muniz,Jorge Cunha Lima; Jacob,Rodrigo de Freitas. |
| ABSTRACT This study was conducted to evaluate the effect of reduction of the available phosphorus (avP) in diets supplemented with 500 FTU/kg phytase on performance, carcass characteristics, and bone mineralization of broilers aged 22 to 42 days kept in a high-temperature environment. A total of 336 Cobb broilers with an average initial weight of 0.883±0.005 kg were distributed in a completely randomized design with six treatments - a positive control (0.354 and 0.309% avP without addition of bacterial phytase for the phases of 22 to 33 and 34 to 42 days, respectively), and another five diets with inclusion of phytase (500 FTU) and reduction of the level of avP (0.354, 0.294, 0.233, 0.173, and 0.112%; and 0.309, 0.258, 0.207, 0.156, and 0.106% for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone mineralization; Carcass characteristics; Heat stress; Performance; Thermal environment. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200048 |
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| Oliveira,Will Pereira de; Donzele,Rita Flávia Miranda de Oliveira; Donzele,Juarez Lopes; Albino,Luiz Fernando Teixeira; Antunes,Marcus Vinícius de Lima; Campos,Paulo Henrique Reis Furtado; Souza,Matheus Faria de; Pastore,Silvana Marques. |
| The objective of this study was to evaluate the effect of digestible lysine levels in diets with or without supplementation of industrial amino acids on performance, carcass characteristics and nitrogen excretion in broilers of 22 to 42 days of age. Birds were distributed in a completely randomized experimental design in a 4 × 2 factorial arrangement, with four digestible lysine levels (9.0, 10.0, 11.0 and 12.0 g/kg) and two methods to obtain the lysine levels (variation in the proportion of corn and soybean meal, without supplementation; or supplementation of industrial amino acids), eight replicates and 20 birds per replicate. There was an interaction effect on the performance characteristics and on the weights and yields of prime cuts. In both diets,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Ideal protein; Industrial amino acids; Performance. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100579 |
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| Rocha,Gabriel Cipriano; Donzele,Juarez Lopes; Silva,Francisco Carlos de Oliveira; Donzele,Rita Flávia Miranda de Oliveira; Kiefer,Charles; Alebrante,Leandro; Paulino,Pedro Veiga Rodrigues; Serão,Nicola Vergara Lopes. |
| This experiment was conducted to evaluate nutritional plans of digestible lysine (DLys) for growing-finishing gilts. Eighty gilts with 63 days of age and an initial weight of 24.2±1.52 kg were distributed in a completely randomized block design, with five nutritional plans of DLys (9-8-7, 10-9-8, 11-10-9, 12-11-10, and 13-12-11 g/kg, from 63 to 103, 104 to 133, and 134 to 153 days of age, respectively) and eight replicates. Pigs were housed in pairs and fed their respective diets ad libitum throughout the experimental period (90 days). To monitor the animal development along the experiment at 103 and 133 days, gilts were weighed and subjected to analysis of ultrasound for evaluation of loin depth (longissimus dorsi) and backfat thickness. At the end of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid; Carcass; Performance; Phases; Swine. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000900457 |
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| Pereira,Cinthia Maria Carlos; Donzele,Juarez Lopes; Donzele,Rita Flávia Miranda de Oliveira; Kiefer,Charles; Bernardino,Verônica Maria Pereira; Balbino,Eric Marcio; Rocha,Gabriel Cipriano. |
| ABSTRACT: To evaluate inclusion levels and residual effects of diets containing yeast extract (YE) plus blood plasma (BP) on the performance of 36 to 60-days old piglets, 105 piglets were used (8.75±0.72kg), and they were distributed under a randomized block experimental design with five treatments (control - 2.0% BP; 1.0% BP plus 0.0, 1.0, 2.0, or 3.0% YE), seven repetitions, and three animals per experimental unit. Piglets were given experimental diets from 36 to 49 days of age. From 50 to 60 day of age, all piglets received the same diet. No effects from treatments (P>0.10) were observed on the performance variables from 36 to 49 day of age. From 50 to 60 day of age, an effect was observed from YE levels on the daily feed consumption (P<0.03),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Performance; Residual effect; Nutrition; Swines. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601107 |
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