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| Registros recuperados: 11 | |
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| Revolledo,Liliana; Ferreira,Claudete Serrano Astolfi; Ferreira,Antonio José Piantino. |
| The efficacy of three different types of experimental competitive exclusion (CE-A, CE-B and CE-C) cultures against Salmonella Kedougou (SK) NCTC 12173, resistant to nalidixic-acid resistant (NalR), in one-day-old broiler chicks, in four treatments with three replicates in each treatment, was evaluated. The mean logarithmic counts of Salmonella program of feces were 0.4 L in the group treated with CE-A, derived from the whole cecal contents of an adult bird with a mixture of aerobic and anaerobic bacterial cultures; 1.22 in the group treated with CE-B, containing aerobic bacterial culture; 1.00 in the group treated with CE-C, containing anaerobic bacterial culture; and 6.64 in the control group. The percentage of colonized birds varied from 10% to 26.66% in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Competitive exclusion; Salmonella; Broiler chicks. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000400014 |
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| Shahid,I; Sharif,M; Yousaf,M; Ahmad,F; Virk,MR; Bilal,MQ; Anwar,U; Ali,A; Hussain,M; Chishti,MFA; Rahman,MA. |
| ABSTRACT The objective of this experiment was to investigate the effect of supplementation of an exogenous emulsifier (lyso-phospholipid) in the diet of growing broilers on growth performance and digestibility. A total of 1224 Ross-308 ten day old broiler chicks were distributed into two experimental treatments in such a way that each treatment had twelve replicates with fifty-one birds per replicate. Two experimental diets were formulated with and without emulsifier supplementation according to the nutrition standards of Ross 308. Feed intake and body weight gain of the broilers were measured on a daily basis and feed conversion ratio was also calculated. Nutrient digestibility was determined on the 25th day of age. Analysis of variance under completely... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Age; Additivies; Broiler chicks; Carcass; Ross 308. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000100307 |
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| Almeida,JG; Vieira,SL; Reis,RN; Berres,J; Barros,R; Ferreira,AK; Furtado,FVF. |
| This study investigated the hatching distribution of eggs from broiler breeders of different ages in distinct periods of incubation. Eggs were incubated in a single-stage experimental incubator. A number of 3.510 eggs were distributed into 3 treatments with 13 replicates of 90 eggs each. Treatments corresponded to breeder age: young (34 weeks), intermediate-age (44 weeks) and old (72 weeks) breeders. Eggs were transferred to the hatcher at 432 incubation hours, hatching was first checked at 449 hours, after which the number of hatched chicks was counted every 6 hours up to 515 incubation hours. After each count, hatched chicks were removed from the hatcher. Data were submitted to analysis of variance using measures repeated. A significant interaction... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chicks; Embryo mortality; Incubation; Post-hatching management. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200003 |
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| Menegali,Irene; Tinôco,Ilda F. F.; Zolnier,Sérgio; Carvalho,Cinara da C. S.; Guimarães,Maria C. de C. |
| To maintain a competitive development of the Brazilian aviculture, some measures must be taken to enable the identification and reduction of risks to the health of birds, as well as for the physical environment. Therefore, the aim of this study was to evaluate the effectiveness of three different systems of minimum ventilation (positive pressure - SVMP, negative pressure - SVMN and natural ventilation - SVMNat) in the air quality during the first 21 days of life of broiler chicks, during winter. Three points were selected along the length to verify ammonia, carbon monoxide and oxygen concentrations at 3a.m., 9a.m., 3p.m. and 9p.m., by the respiration level of birds and workers. The averages of pollutant gases did not exceed the tolerance levels for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aviculture; Broiler chicks; Gas concentration; Air renovation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600003 |
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| Pires,DL; Malheiros,EB; Boleli,IC. |
| The effects of water and feed fasting for 24, 48 and 72 hours post-hatching on blood parameters (mean corpuscular volume, MCV; red blood-cell, RBC; hematocrit, HCT; hemoglobin, HGB; plasma glucose, CGP; plasma total protein, PP, and differential leukocytes count), and on body, liver, spleen, bursa, and yolk sac weights were analyzed. Erythrogram data were obtained with a blood cell counter. Total plasma protein and plasma glucose were determined by using the Bradford method (1976) and a glucose PAP liquiform kit (Labtest, cat. n. 84), respectively. Specific leukocyte counts were carried out on blood smears stained with Rosenfeld solution. According to the obtained data, water and feed post-hatching fasting reduced MCV values, which also were lower in males... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood parameters; Broiler chicks; Bursa of Fabricius; Post-hatching fasting. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000400005 |
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| Yildirim,F; Tunç,MA. |
| ABSTRACT This study was conducted to investigate the effects of different levels of Tarragon powder on head, chicken feet, some internal organs and carcass characteristics of broiler chickens. One day -old two hundred forty Ross 308 male broilers were randomly allocated into four treatments and six replicates per treatment. At each replicate ten birds were used. All birds at 42 days had ad libitum access to water and feed and were exposed to a 23L:1D lighting program. The diets were set on the basis of corn, soybean and wheat meal, formulated according to the recommendations of the Ross 308 manual (starter days 1-14, grower days 15-37, and finisher days 38-42), and offered as mash. The tarragon plant used in the research was purchased from a vegetable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chicks; Carcass; Internal Organs; Tarragon Powder.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100179 |
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| Vercellino,R do A; Moura,DJ de; Nääs,I de A; Maia,AP de A; Medeiros,BBL; Salgado,DDA; Carvalho,TRM de. |
| Brazilian poultry production is prospering, and negative-pressure broiler houses are increasingly used to improve environmental control. One important issue is the color of the side curtains used in such houses due to the influence of colors on broiler behavior. This study aimed at evaluating the influence of different curtain color on the welfare of 7-day-old broilers, considering luminosity and other environmental parameters. Chicks were housed in three different negative-pressure broiler houses either with black (T1), blue (T2), or yellow (T3) side curtains. House environment (luminosity, dry-bulb temperature, air relative humidity, air velocity, and gas emissions) and the behavior of chicks on day 7 after housing were evaluated in three consecutive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Carbon dioxide; Luminosity; Behavior; Broiler chicks. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300002 |
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| Registros recuperados: 11 | |
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