Revista Brasileira de Zootecnia

The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.

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Revista Brasileira de Zootecnia

The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.

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Revista Brasileira de Zootecnia

The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.

  • About
    • History
    • Focus and scope
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    • Editorial board
    • Editorial team
  • Available issues
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    • Instructions to authors
    • Cover letter
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Volume 45, Issue 2, 2016

Analysis of the effect of dietary protected organic acid blend on lactating sows and their piglets

Subramaniam Mohana Devi, Kwang Yong Lee, In Ho Kim

01/Feb/2016

Analysis of the effect of dietary protected organic acid blend on lactating sows and their piglets

Subramaniam Mohana Devi, Kwang Yong Lee, In Ho Kim

DOI: 10.1590/S1806-92902016000200001

The objective of the present study was to evaluate the effects of blends of dietary protected organic acid supplementation on growth performance, nutrient digestibility, blood profiles, faecal microflora, and gas emission on sows and piglets with emphasis on their modes of action to improve pig performance. A total of 12 sows with an average initial body weight (BW) of 252.40±11.7 kg were used in this trial. Growth performance, blood profiles, and nutrient digestibility of sows and piglets fed protected organic […]

Keywords: blood profiles; digestibility; growth performance; noxious gas; pigs

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Available phosphorus levels in diets supplemented with phytase for male broilers aged 22 to 42 days kept in a high-temperature environment

Tarciso Tizziani, Rita Flávia Miranda de Oliveira Donzele, Juarez Lopes Donzele, Eric Márcio Balbino, Amanda Dione Silva, Érika Martins de Figueiredo, [...]

01/Feb/2016

Available phosphorus levels in diets supplemented with phytase for male broilers aged 22 to 42 days kept in a high-temperature environment

Tarciso Tizziani, Rita Flávia Miranda de Oliveira Donzele, Juarez Lopes Donzele, Eric Márcio Balbino, Amanda Dione Silva, Érika Martins de Figueiredo, [...]

DOI: 10.1590/S1806-92902016000200002

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 […]

Keywords: bone mineralization; carcass characteristics; heat stress; performance; thermal environment

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Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids

Rogério Mendes Murta, Cristina Mattos Veloso, Aureliano José Vieira Pires, Fabiano Ferreira da Silva, Gleidson Giordano Pinto de Carvalho, Antônio Eustáquio Filho, [...]

01/Feb/2016

Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids

Rogério Mendes Murta, Cristina Mattos Veloso, Aureliano José Vieira Pires, Fabiano Ferreira da Silva, Gleidson Giordano Pinto de Carvalho, Antônio Eustáquio Filho, [...]

DOI: 10.1590/S1806-92902016000200003

The objective of this study was to evaluate the effect of different sources of lipids in the diets of dairy cows on the intake and digestibility of nutritional fractions, and milk production and composition. The experiment was conducted in a 42-hectare area divided into eight paddocks covered with Brachiaria brizantha. Twelve crossbred Holstein × Zebu cows were distributed into three simultaneous 4 × 4 Latin squares. The treatments consisted of different sources of lipids, as follows: diet with no extra […]

Keywords: cottonseed; dairy cows; fat; performance; ruminant nutrition; soy

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Effects of polymer coated slow-release urea on ruminal fermentation and nutrient total tract digestion of beef steers

Rodrigo Gardinal, Jefferson Rodrigues Gandra, Gustavo Delfino Calomeni, Thiago Henrique Annibale Vendramini, Caio Seiti Takiya, José Esler de Freitas Júnior, [...]

01/Feb/2016

Effects of polymer coated slow-release urea on ruminal fermentation and nutrient total tract digestion of beef steers

Rodrigo Gardinal, Jefferson Rodrigues Gandra, Gustavo Delfino Calomeni, Thiago Henrique Annibale Vendramini, Caio Seiti Takiya, José Esler de Freitas Júnior, [...]

DOI: 10.1590/S1806-92902016000200004

The objective of this study was to evaluate the effects of polymer coated slow-release urea (SRU) in high-forage diets of beef steers on nutrient intake and digestibility, ruminal fermentation, microbial protein synthesis, and energy balance. Eight 24-mo-old rumen-fistulated castrated Nellore steers (average body weight = 418.0±40.0 kg) were used in a replicated 4 × 4 Latin square design. Animals were randomly distributed to receive one of the following diets: no urea inclusion; 1.0% inclusion of feed grade urea in the […]

Keywords: ammonia; digestibility; microbial protein; Nellore; non-protein nitrogen; soybean

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Simulation of diets for dairy goats and growing doelings using nonlinear optimization procedures

Leonardo Siqueira Glória, Matheus Lima Corrêa Abreu, Norberto Silva Rocha, Tadeu Silva de Oliveira, Raphael dos Santos Gomes, Nardele Moreno Rohem Júnior, [...]

01/Feb/2016

Simulation of diets for dairy goats and growing doelings using nonlinear optimization procedures

Leonardo Siqueira Glória, Matheus Lima Corrêa Abreu, Norberto Silva Rocha, Tadeu Silva de Oliveira, Raphael dos Santos Gomes, Nardele Moreno Rohem Júnior, [...]

DOI: 10.1590/S1806-92902016000200005

The objective of this study was to simulate total dry matter intake and cost of diets optimized by nonlinear programming to meet the nutritional requirements of dairy does and growing doelings. The mathematical model was programmed in a Microsoft Excel(r) spreadsheet. Increasing values of body mass and average daily weight gain for growing doelings and increasing body mass values and milk yield for dairy does were used as inputs for optimizations. Three objective functions were considered: minimization of the dietary […]

Keywords: decision support system; diet formulation; diet optimization; goat nutrition

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amino acids beef cattle Brachiaria decumbens carcass dairy cattle digestibility feedlot growth heritability intake Nellore nutrition Pennisetum purpureum performance pH protein sheep swine urea weight gain

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  • About
    • History
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ISSN: 1516-3598 (printed version from 1997 to 2009)

e-ISSN: 1806-9290

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