Revista Brasileira de Zootecnia

A Revista Brasileira de Zootecnia é uma publicação dedicada ao amplo campo da Zootecnia. Publicamos pesquisas científicas originais e de alta qualidade que abrangem várias áreas, incluindo aquicultura, biometeorologia e bem-estar animal, forragens e pastagens, melhoramento e genética de plantas forrageiras e animais, reprodução animal, nutrição de ruminantes e não-ruminantes, ciência da carne e biologia muscular, zootecnia de precisão e sistemas de produção animal e agronegócio.

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Revista Brasileira de Zootecnia

A Revista Brasileira de Zootecnia é uma publicação dedicada ao amplo campo da Zootecnia. Publicamos pesquisas científicas originais e de alta qualidade que abrangem várias áreas, incluindo aquicultura, biometeorologia e bem-estar animal, forragens e pastagens, melhoramento e genética de plantas forrageiras e animais, reprodução animal, nutrição de ruminantes e não-ruminantes, ciência da carne e biologia muscular, zootecnia de precisão e sistemas de produção animal e agronegócio.

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Revista Brasileira de Zootecnia

A Revista Brasileira de Zootecnia é uma publicação dedicada ao amplo campo da Zootecnia. Publicamos pesquisas científicas originais e de alta qualidade que abrangem várias áreas, incluindo aquicultura, biometeorologia e bem-estar animal, forragens e pastagens, melhoramento e genética de plantas forrageiras e animais, reprodução animal, nutrição de ruminantes e não-ruminantes, ciência da carne e biologia muscular, zootecnia de precisão e sistemas de produção animal e agronegócio.

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Volume 45, Número 7, 2016

Effects of lines and inoculants on nutritive value and production costs of triticale silages

Ekin Sucu, Esra Aydoğan Çifci

01/jul/2016

Effects of lines and inoculants on nutritive value and production costs of triticale silages

Ekin Sucu, Esra Aydoğan Çifci

DOI: 10.1590/S1806-92902016000700001

The current study was undertaken to investigate the ensilage characteristics in triticale lines treated by inoculants and their interaction on fermentation metabolites and rumen degradability. Costs were estimated for growing and feeding whole-crop triticale lines for animal production. Triticale hybrids were harvested at the dough stage of maturity (38% dry matter, DM). Plants were chopped approximately 2 cm after harvest and then treated with inoculants and were ensiled in 1.5-L mini laboratory silos. Two lactic acid bacterial inoculants with enzymes […]

Palavras-chave: cost; degradability; enzimas; fermentation; enterobactérias; triticale lines

Mais

Semen quality and reproductive performance of boars kept in pens containing conventional coffee husk as a floor covering

Mariele Cristina Teles, Bárbara Azevedo Pereira, Luiz Gustavo Pessoa Rocha, Carla Oliveira Resende, Valéria Vânia Rodrigues, Luciano José Pereira, [...]

01/jul/2016

Semen quality and reproductive performance of boars kept in pens containing conventional coffee husk as a floor covering

Mariele Cristina Teles, Bárbara Azevedo Pereira, Luiz Gustavo Pessoa Rocha, Carla Oliveira Resende, Valéria Vânia Rodrigues, Luciano José Pereira, [...]

DOI: 10.1590/S1806-92902016000700002

The objective of this study was to evaluate the putative effects of the use of coffee husk as floor covering on boar semen quality. Sixteen boars were divided into two groups. The first group was held in a conventional system with a compact floor. The second group was kept on a compact floor covered with coffee pods. The experimental period was 60 days. Levels of caffeine and chlorogenic acid in the insemination doses (ID) before and after 96 h of […]

Palavras-chave: antioxidante; by-product; caffeine; pig; óleo de salmão

Mais

Locomotion of commercial broilers and indigenous chickens

Marília Carvalho Figueiredo Alves, Ibiara Correia de Lima Almeida Paz, Irenilza de Alencar Nääs, Rodrigo Garófallo Garcia, Fabiana Ribeiro Caldara, Grace Alessandra de Araujo Baldo, [...]

01/jul/2016

Locomotion of commercial broilers and indigenous chickens

Marília Carvalho Figueiredo Alves, Ibiara Correia de Lima Almeida Paz, Irenilza de Alencar Nääs, Rodrigo Garófallo Garcia, Fabiana Ribeiro Caldara, Grace Alessandra de Araujo Baldo, [...]

DOI: 10.1590/S1806-92902016000700003

This study aimed to evaluate the relationship between the steadiness of broilers during the stance phase of locomotion, and the primary disorders of the locomotor system and gait. The experimental design was completely randomized, in a factorial arrangement (2 × 2 + 32), indicating two sexes and two genetic commercial strains, with five replications of 53 broilers each, and 32 (16 males and 16 females) indigenous chickens. Gait score and valgus and varus condition were assessed. Pictures of the birds […]

Palavras-chave: bone pathology; postural balance; welfare

Mais

Prediction of egg weight from egg quality characteristics via ridge regression and regression tree methods

Hikmet Orhan, Ecevit Eyduran, Adile Tatliyer, Hasan Saygici

01/jul/2016

Prediction of egg weight from egg quality characteristics via ridge regression and regression tree methods

Hikmet Orhan, Ecevit Eyduran, Adile Tatliyer, Hasan Saygici

DOI: 10.1590/S1806-92902016000700004

This study was conducted on 2049 eggs, collected from commercial white layer hybrids, with the purpose of predicting egg weight (EW) from egg quality characteristics such as shell weight (SW), albumen weight (AW), and yolk weight (YW). In the prediction of EW, ridge regression (RR), multiple linear regression (MLR), and regression tree analysis (RTM) methods were used. Predictive performance of RR and MLR methods was evaluated using the determination coefficient (R2) and variance inflation factor (VIF). R2 (%) coefficients for […]

Palavras-chave: chaid algorithm; encefalopatia espongiforme bovina (BSE); decision tree; multicolinearidade

Mais

Influence of progesterone ear implant on behavior, physiological parameters, and carcass injuries of Nellore females reared in an intensive system

Rafael Alves da Costa Ferro, Aldi Fernandes de Souza França, Emmanuel Arnhold, Cláudia Peixoto Bueno, Diogo Alves da Costa Ferro, Aracele Pinheiro Pales, [...]

01/jul/2016

Influence of progesterone ear implant on behavior, physiological parameters, and carcass injuries of Nellore females reared in an intensive system

Rafael Alves da Costa Ferro, Aldi Fernandes de Souza França, Emmanuel Arnhold, Cláudia Peixoto Bueno, Diogo Alves da Costa Ferro, Aracele Pinheiro Pales, [...]

DOI: 10.1590/S1806-92902016000700005

The objective of this study was to evaluate the influence of a synthetic progesterone ear implant on the behavior, physiological responses, and number of carcass injuries of Nellore females. Twenty-eight Nellore heifers with an average initial weight of 240.89 kg were used in the experiment. All animals received the same dietary management, in an intensive rearing system with mineral salt and water ad libitum. Heifers were distributed in a completely randomized design with two treatments (with and without progesterone ear […]

Palavras-chave: animal performance; ethology; reprodução; norgestomet

Mais

Nutritional value of baled rice straw for ruminant feed

Vanessa Peripolli, Julio Otávio Jardim Barcellos, Ênio Rosa Prates, Concepta McManus, Leila Picolli da Silva, Laion Antunes Stella, [...]

01/jul/2016

Nutritional value of baled rice straw for ruminant feed

Vanessa Peripolli, Julio Otávio Jardim Barcellos, Ênio Rosa Prates, Concepta McManus, Leila Picolli da Silva, Laion Antunes Stella, [...]

DOI: 10.1590/S1806-92902016000700006

The objectives of this study were to evaluate the effects of cultivation and hay making factors on chemical composition, protein fractionation, and digestibility in rice straw, as well as to identify the chemical fractions that contribute to the variation in its nutritional value for ruminants. Statistical procedures were performed in a model that included rice crop cycle, sowing season, baling season, soil classification, fertilizer application, and productivity (kg/ha) as fixed effects and the hay bale as random effect. Chemical composition, […]

Palavras-chave: digestibility; deterioração aeróbia; protein fractionation

Mais

Economic and social structures of water buffalo farming in Muş province of Turkey

Mehmet Işik, Mevlüt Gül

01/jul/2016

Economic and social structures of water buffalo farming in Muş province of Turkey

Mehmet Işik, Mevlüt Gül

DOI: 10.1590/S1806-92902016000700007

The purpose of this study was to analyse the socio-economic structure of water buffalo farming in the province of Muş, in Turkey. The stratified sampling method was used to calculate sample size of buffalo farms in the Central, Korkut, and Hasköy districts of Muş province, where buffalo farming is widespread. Data were collected from the 94 farms by surveys in the 2013 production period. A single budget analysis method was used to calculate production cost and profit for water buffaloes. […]

Palavras-chave: production cost; lucro; número de folhas

Mais

Economic analysis of dairy cattle farms in east Mediterranean region of Turkey

Hilal Yilmaz, Mevlüt Gül, Selcan Akkoyun, Oguz Parlakay, Mehmet Emin Bilgili, Yasemin Vurarak, [...]

01/jul/2016

Economic analysis of dairy cattle farms in east Mediterranean region of Turkey

Hilal Yilmaz, Mevlüt Gül, Selcan Akkoyun, Oguz Parlakay, Mehmet Emin Bilgili, Yasemin Vurarak, [...]

DOI: 10.1590/S1806-92902016000700008

The purpose of this study was to calculate costs of milk production, gross production value, gross margin, absolute profit, and relative profit of dairy cattle farms located in the provinces of east Mediterranean region of Turkey. Primary data were collected from 148 dairy cattle farms designated using the Neyman Stratified Sampling method through surveys. Dairy farms were classified into four groups according to the number of cows. The data belong to the 2012 production season. A single product budget analysis […]

Palavras-chave: margem bruta; milk production cost; lucro; custo variável

Mais

Physicochemical and microbiological parameters of frozen and chilled chicken meat

Raimunda Thyciana Vasconcelos Fernandes, Alex Martins Varela de Arruda, Monik Kelly de Oliveira Costa, Patrícia de Oliveira Lima, Luiz Odonil Gomes dos Santos, Aurora da Silva Melo, [...]

01/jul/2016

Physicochemical and microbiological parameters of frozen and chilled chicken meat

Raimunda Thyciana Vasconcelos Fernandes, Alex Martins Varela de Arruda, Monik Kelly de Oliveira Costa, Patrícia de Oliveira Lima, Luiz Odonil Gomes dos Santos, Aurora da Silva Melo, [...]

DOI: 10.1590/S1806-92902016000700009

With this study we aimed to evaluate and compare physicochemical and microbiological characteristics of frozen and chilled chicken meat. Only the prime cuts (breast, thighs, and drumsticks) were considered for the analysis of chemical composition, pH, color, water-holding capacity (WHC), thawing-cooking loss (TCL), and shear force (SF). For microbiological analysis, mesophilic bacteria, thermotolerant coliforms, and Salmonella spp. were considered. The frozen and chilled chicken meat showed no PSE (pale, soft, and exudative) or DFD (dark, firm, and dry) type of […]

Palavras-chave: ambiência; avaliação de alimentos; subproduto agrícola; microbiologia; pH

Mais

Influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental Heros severus (Heckel, 1840)

Galileu Crovatto Veras, Daércio José de Macedo Ribeiro Paixão, Marcos Ferreira Brabo, Lourdes Marília Oliveira Soares, Abner Dias Sales

01/jul/2016

Influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental Heros severus (Heckel, 1840)

Galileu Crovatto Veras, Daércio José de Macedo Ribeiro Paixão, Marcos Ferreira Brabo, Lourdes Marília Oliveira Soares, Abner Dias Sales

DOI: 10.1590/S1806-92902016000700010

The objective of this work was to evaluate the influence of photoperiod on growth, uniformity, and survival of larvae of the Amazonian ornamental fish severum (Heros severus). A completely randomized study was used with five treatments (0L:24D, 6L:18D, 12L:12D, 18L:6D, 24L:0D) and four replicates, with the aquaria as the experimental unit. Two hundred severum larvae (3.20±0.16 mg and 5.60±0.00 mm) were distributed into 20 aquariums of one litre at a density of 10 larvae per litre. For a period of […]

Palavras-chave: circadian rhythm; hatchery; live food; ornamental fish; severum

Mais

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ISSN: 1516-3598 (versão impressa de 1997 a 2009)

e-ISSN: 1806-9290

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