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| Abreu,Paulo Giovanni de; Abreu,Valéria Maria Nascimento; Coldebella,Arlei; Jaenisch,Fátima Regina Ferreira; Paiva,Doralice Pedroso de. |
| The objective of this study was to evaluate environmental thermal conditions in broiler houses with two different ventilation systems and two different litter materials. The experiment was carried out in four 12 m × 10 m broiler houses, internally divided in 4 boxes/poultry house, with 200 birds/pen for four consecutive flocks, each one with a duration of 42 days with 15 days of downtime between flocks. Treatments tested were two ventilation systems (stationary or oscillating fans), and two types of litter materials (soybean straw or rice husks). It was collected in the center of each pen and in the external enviroment, dry and wet bulb temperatures, black globe temperature, and air velocity. These data were collected at 3-hour intervals from 8:00 a.m. to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Oscillating ventilation; Rice husks; Soybean straw; Stationary ventilation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000600026 |
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| Abreu,Paulo Giovanni de; Abreu,Valéria Maria Nascimento; Coldebella,Arlei; Jaenisch,Fátima Regina Ferreira; Paiva,Doralice Pedroso de. |
| The objective of this study was to evaluate the thermal comfort of broilers reared under two lighting programs (almost continuous and intermittent) in broiler houses with yellow or blue lateral curtains. The experiment was carried out from June 24, 2004 until May 12, 2005. Six consecutive flocks were housed in four 12 × 10 m broilers houses internally divided into four pens of 200 birds each. Six flocks were raised on the same litter. The registration of data was accomplished at 3-hour intervals, for 24 hours twice a week. In the center of each pen and outside the house, dry and wet bulb temperatures, black globe temperature, and air velocity were collected. Based on the data collected at each time, air temperature (AT) (ºC), black globe humidity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal environment; Poultry house; Thermal index. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900025 |
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| Abreu,Valéria Maria Nascimento; Abreu,Paulo Giovanni de; Coldebella,Arlei; Jaenisch,Fátima Regina Ferreira; Santos Filho,Jonas Irineu dos; Paiva,Doralice Pedroso de. |
| The objective of the present study was to evaluate mortality and performance, darkling beetle population (Alphitobius diaperinus), light intensity, electrical energy consumption and economic efficiency of broilers reared under two lighting programs (nearly continuous or intermittent) and two curtain colors (yellow or blue). The experiment was conducted between June, 2004 and May, 2005. Six flocks were sequentially housed in four 12 × 10 m broiler houses divided into 4 pens with 200 birds each. Litter was reused six times or until flock 6. Body weight and feed conversion were determined on days 21, 35, and 42 of each flock. Mortality was recorded daily. Electrical energy consumption was recorded at the end of the grow-out of each flock (every 42 days). A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alphitobius diaperinus; Economic analysis; Electric energy; Intermittent; Lighting intensity; Semi-continuous. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900026 |
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| Abreu,Valéria Maria Nascimento; Abreu,Paulo Giovanni de; Coldebella,Arlei; Jaenisch,Fátima Regina Ferreira; Paiva,Doralice Pedroso de. |
| The objective of the present study was to evaluate carcass and parts' yield, abdominal fat deposition and breast and foot pad blisters of broilers reared under two lighting programs (nearly continuous or intermittent) in broilers houses with yellow and blue curtains. The experiment was conducted between June, 2004 and May, 2005. Six flocks were sequentially housed in four 12 × 10 m broiler houses divided into 4 pens with 200 birds each. The litter was reused six times or until flock 6. A completely randomized design in a 6 × 2 × 2 factorial arrangement (flocks, lighting programs, curtains) with four replicates per treatment was applied. A total of 288 birds were evaluated for carcass yield. Curtain color did not affect carcass or parts' yield. The effect... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breast blister; Breast yield; Foot pad blister; Intermittent; Leg yield; Nearly continuous. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900027 |
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