|
|
|
| Registros recuperados: 159 | |
|
| |
|
| |
|
|
| Cardoso,W.M.; Gomes,L.P.; Romão,J.M.; Salles,R.P.R.; Teixeira,R.S.C.; Sobral,M.H.N.R.; Câmara,S.R.; Oliveira,W.F.. |
| The experiment was carried out to determine the antibody levels to infectious bronchitis virus (IBV) in 1120 broilers of two broiler flocks, both from the same parental flock and free from previous vaccination. Forty chicks of each line were alloted to the control group and the sera were tested by indirect ELISA. The vaccination program consisted on the administration of commercial vaccines against IBV at 10 and 25 days of age. Chicks with low levels of maternal antibodies (Mab) did not show significant titers to the first vaccinal stimulus. They presented a vaccinal response to the second vaccinal stimulus reaching the top around GMT 1100 at 45 days. Chicks with high Mab titers did not show significant titers to the primary and secondary vaccinal stimuli,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Infections bronchitis; Antibody. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000300007 |
| |
|
|
| Domínguez Martínez, Pablo Alfredo. |
| La oxidación causada por patógenos es un problema de suma importancia en animales. Pollos mixtos, de un día de edad (Cobb 500, n=624) fueron asignados al azar a uno de seis tratamientos. Como testigo se utilizó una dieta base (T; 40 mg de VE kg-1 de alimento y 1.5% de ARG). El segundo tratamiento fue la dieta base + ARG (ARG; + 0.3%). El tercer tratamiento fue la dieta base + ARG + VE (AVE; + 0.3% y + 40 mg kg-1 de alimento). El cuarto tratamiento fue la dieta base + ARG + VC (AVC; + 0.3% + 1 g kg-1 de alimento). El quinto tratamiento fue la dieta base suplementada con VE + VC (VEC; + 40 mg + 1 g kg-1 de alimento). El sexto tratamiento fue la dieta base + ARG + VE + VC (AVEC; + 0.3% + 40 mg + 1 g kg-1 de alimento). Al día 14 todos los pollitos fueron... |
|
Palavras-chave: Arginina; Vitamina E; Vitamina C; Eimeria; Pollo de engorda; Arginine; Vitamin E; Vitamin C; Broiler; Ganadería; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2351 |
| |
|
|
| Peña,JEM; Vieira,SL; López,J; Reis,RN; Barros,R; Furtado,FVF; Silva,PX. |
| The aim of this study was to evaluate the effects of increasing doses of ascorbic acid (AA) and citric flavonoids (quercetin and rutin) on the performance and meat quality characteristics of broilers submitted to cyclic heat stress. Four-hundred one-day-old female Ross 308 were housed in 40 battery cages a in temperature controlled room. Treatments consisted of 0, 250, 500, and 1000 g/ton on of AA + citric flavonoids. Birds were fed ad libitum until 32 day of age. Beginning on day 14 post-hatch until the end of the experiment, in order to simulate cyclic heat stress, the temperature inside the room was increased to 32°C for 5 hours, and decreased until reaching the comfort temperature corresponding to the age of the animals. Birds were slaughtered at 33... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascorbic acid; Broiler; Heat stress; Flavonoids. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200008 |
| |
|
| |
|
| |
|
|
| Villagrá,A; Olivas,I; Althaus,RL; Gómez,EA; Lainez,M; Torres,AG. |
| The aim of this study was to determine the selection of bedding material by broiler chickens during the rearing period and whether the choice was determinant to their performing a specific behavior. To achieve this objective, a choice test was designed. A choice pen was constructed where birds could move freely around the four selected materials (straw, wood shavings, rice hulls and sand). Chickens were introduced in this pen in four groups of eight birds, three days a week for one hour per day and group, for four weeks. The location and the activity performed by each broiler were recorded every five minutes. Results showed a preference for sand compared with the other three substrates. However, differences between the behaviors performed in each bedding... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavior; Broiler; Choice test; Litter; Preference. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000100010 |
| |
|
|
| Ferraz,Patricia F. P.; Yanagi Junior,Tadayuki; Alvarenga,Talita A. C.; Reis,Gregory M.; Campos,Alessandro T.. |
| In the first week of a chick life, broilers are very sensitive to different conditions outside their thermoneutral zone. Thus, the goal of this study was to evaluate the behaviors and productive responses of broilers subjected to conditions of thermal comfort or challenge at different intensities (27, 30, 33 and 36ºC) and durations (1, 2, 3 and 4 days starting on the second day of life). In the experiment, ten minutes of images from each hour of each treatment were analyzed to evaluate the key behaviors of the birds. Similar behavior at different dry-bulb air temperatures were identified by using Ward's method of cluster analysis. These behaviors were grouped by dendograms in which the similarity of these data was qualified. Feed intake, water intake and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Grouping of data; Dendogram; Broiler; Productive responses. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600002 |
| |
|
|
| Borsoi,Anderlise; Santos,Luciana Ruschel do; Rodrigues,Laura Beatriz; Moraes,Hamilton Luiz de Souza; Salle,Carlos Tadeu Pippi; Nascimento,Vladimir Pinheiro do. |
| Over the years, Salmonella Heidelberg (SH) has gained prominence in North America poultry production and in the poultry production of other countries. Salmonella Heidelberg has been isolated and reported from poultry and poultry products in Brazil since 1962, whereas Salmonella Enteritidis (SE) has only emerged as a serious problem in poultry and public health since 1993. These strains of Salmonella can cause intestinal problems in newly hatched chicks, and infection may persist until adulthood. Upon slaughter of chickens, Salmonella can contaminate carcasses, a condition that poses a threat to human health. The aim of this study was to compare the fecal excretion of Salmonella Enteritidis and Salmonella Heidelberg in newly hatched chicks (orally... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella Heidelberg; Salmonella Enteritidis; Fecal Excretion; Villus/crypt ratio; Broiler. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100034 |
| |
|
|
| Martins,Bianca Almeida Brandão; Borgatti,Laura Maria de Oliveira; Souza,Luiz Waldemar de Oliveira; Robassini,Simi Luiza Durante Aflalo; Albuquerque,Ricardo de. |
| Five hundred and four 1-day-old Cobb broiler chickens were randomly allotted to 18 treatments and fed a semi-purified basal diet (4 g/kg total phosphorus) supplemented with 2 levels of supplemental P (0.5 or 1 g/kg) during 21 days to evaluate performance and bone mineralization; to assess the relative bioavailability of P (RBP) in wheat meal (WM) and roasted (RS) or extruded soybean meal (ES), with or without phytase (0 or 750 ftu/kg diet), using dicalcium phosphate (DC) as standard; and to estimate phosphorus excretion. Weight gain (WG), feed intake (FI), feed to gain ratio (FG), and tibia ash weigh (AW) were assessed. For each source, the RBP was calculated by the slope ratio method, when tibia ash weight was regressed on P ingested. Ingested and fecal P... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Available phosphorus; Bone ash; Broiler; Phosphorus excretion; Phytate; Wheat meal. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000300005 |
| |
|
|
| Silva,PRL; Freitas Neto,OC; Laurentiz,AC; Junqueira,OM; Fagliari,JJ. |
| Blood serum samples of HYBRO PG broilers were analyzed, with 30 samples collected from 21-day-old broilers (G1), 30 from 35-day-old birds (G2), and 30 from 42-day-old birds (G3), with the aim of establishing normal values of some blood serum parameters. The activities of the enzymes gamma-glutamyl-transferase (GGT), aspartate aminotransferase (AST), creatine kinase (CK), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH), serum levels of total calcium, calcium ion, phosphorus, sodium, potassium, magnesium, chlorides, creatinine, uric acid, triglycerides, cholesterol, total protein, albumin, total and indirect and direct bilirubin, and electrophoretic profile of serum proteins in acrylamide (SDS-PAGE) and agarose gel were determined. There was no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Serum biochemistry; Serum protein test. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000400004 |
| |
|
|
| Kokoszyński,D; Bernacki,Z; Saleh,M; Stęczny,K; Binkowska,M. |
| ABSTRACT The aim of the study was to determine body weight and dimensions, body conformation, length of the esophagus, length of intestine and its segments, as well as weight of internal organs and their proportions relative the body weight of broiler chickens from three commercial lines - Ross 308, Hubbard Flex and Hubbard F15. At the age of 42 days, Ross 308 chickens had significantly (p≤0.05) shorter trunk, but greater chest circumference and compactness index, as well as shorter esophagus and longer large intestine compared with Hubbard F15. The longest large and total intestine was found in Ross 308 broilers. Chicken genotype had no significant effect on the percentage of the main internal organs, i.e. liver, heart, proventriculus, gizzard, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body dimensions; Broiler; Digestive tract; Genotype; Internal organs. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100047 |
| |
|
|
| Fassani,EJ; Bertechini,AG; Brito,JAG; Kato,RK; Fialho,ET; Geraldo,A. |
| Boron supplementation in broiler feed is not a routine practice. However, some reports suggest a positive effect of boron on performance. This study assessed the effects of boron supplementation on broiler performance. Diets were based on maize and soybean meal, using boric acid P.A. as boron source. Six supplementation levels (0, 30, 60, 90, 120 and 150 ppm) were evaluated using 1,440 one-day old males housed at a density of 30 chickens in each of 48 experimental plots of 3m². A completely randomized block design was used with 8 replicates. Feed intake, weight gain and feed conversion were assessed in the periods from 1 to 7 days, 1 to 21 days and 1 to 42 days of age, and viability was evaluated for the total 42-day rearing period. No performance variable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal nutrition; Boron; Broiler; Chicken; Performance. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000400004 |
| |
|
|
| Maiorka,Alex; Dahlke,Fabiano; Morgulis,Maria Silvia Furquim de Azevedo. |
| In the latest years more attention has been given to mechanisms for bird adaptation at post-hatching period by management of environmental conditions and formulations of diets offered during this period when digestive, immune, and thermo-regulating systems suffer slight changes. In post-hatching period, digestive system is anatomically complete, but its functionality is still immature in relation to adult birds. The chick immunity depends on maternal antibodies transferred to egg just before laying. In addition, variations within thermal comfort zone might affect initial development of chick. For example, high temperatures may induce hyperthermia with dehydration, while low temperatures may lead to hypothermia responsible by pulmonary hypertension... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Digestive system; Immune system; Thermo-regulatory system. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000200057 |
| |
|
|
| Belintani,Rafael; Garcia,Rodrigo Garófallo; Nääs,Irenilza de Alencar; Borille,Rodrigo; Sgavioli,Sarah; Caldara,Fabiana Ribeiro; Lima,Nilsa Duarte da Silva. |
| ABSTRACT This study aimed to identify the influence of climate pattern and rearing conditions on broiler carcass condemnations observed during processing. We evaluated the registered data of 2015 from the federal inspection files in all broiler slaughterhouses located in the state of Mato Grosso do Sul, Midwestern Brazil. The percentages of condemnations by airsacculitis, cellulitis, dermatosis, ascites syndrome, total carcass condemnations, and average broiler weight at 42 days were analyzed. Data were associated with housing systems and season of the year in which each flock was reared. Two-way ANOVA was applied to the data in a completely randomized design 4×3 (four seasons and three houses) and compared by Tukey's test. The results indicated that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Meat; Production system; Slaughterhouse. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100103 |
| |
|
|
| Sonoda,LT; Moura,DJ; Bueno,LGF; Cordeiro,DC; Mendes,AS. |
| Broiler litter reutilization consists in using the same bedding material to cover the house floor for several broiler flocks. This requires the litter to be treated in order to reduce the amount of microorganisms, according to international recommendations. The aim of this study was to evaluate two methods of broiler litter fermentation based on composting concepts and their effect on litter and the air quality during fermentation in small-scale broiler houses. The experiment was carried out in the Environmental Laboratory I of the School of Agricultural Engineering of the State University of Campinas, utilizing six small-scale houses. Litter from the same grow-out (one, two or three) was distributed in two experimental houses, where it was either piled or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation; Nitrogen; Waste treatment; Broiler. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300011 |
| |
|
|
| Gonsalves,Camila Cristina; Borsoi,Anderlise; Perdoncini,Gustavo; Rodrigues,Laura Beatriz; Nascimento,Vladimir Pinheiro do. |
| ABSTRACT Campylobacter spp. cause foodborne illnesses in humans primarily through the consumption of contaminated chicken. The aim of this study was to evaluate the United States Department of Agriculture's (USDA) recommended methodology, protocol MLG 41.02, for the isolation, identification and direct plate counting of Campylobacter jejuni and C. coli samples from the broiler slaughtering process. A plating method using both mCCDA and Campy-Cefex agars is recommended to recover Campylobacter cells. It is also possible to use this method in different matrices (cloacal swabs and water samples). Cloacal swabs, samples from pre-chiller and post-chiller carcasses and samples of pre-chiller, chiller and direct supply water were collected each week for four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campylobacter; Agar plate count; MCCDA; Campy-Cefex; Broiler. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000300764 |
| |
|
|
| Santana,Ângela Patrícia; Murata,Luci Sayori; Freitas,Camila Guimarães de; Delphino,Marina Karina; Pimentel,Concepta Macmanus. |
| The aim of this research was to detect the principal reasons for condemnation of poultry carcasses in two slaughterhouses (A and B); located in the southeastern region of the State of Goiás, Brazil. The data were collected by the federal veterinary inspection services of the Brazilian Ministry of Agriculture between January and April 2007. The principal causes of condemnation observed in both industries were cellulite, contusion/ fractures and bruises, as well as contamination due to gut severance at evisceration. The three main values observed for each of the causes were different between the slaughter houses. In A, cellulite was the main cause of condemnation with 51.20% of all condemnations, followed by 5.67% for contusion/ fractures and bruising and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cellulite; Broiler; Fractures; Lesions; Quality and poultry meat. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000900028 |
| |
|
|
| Vieira,SL. |
| Organic minerals have been subject of an increasing number of investigations recently. These compounds can be considered the most significant event regarding commercial forms of minerals targeting animal supplementation in the last decades. Minerals, especially metals, are usually supplemented in poultry feeds using cheap saline sources and have never required a lot of attention in terms of quality. On the other hand, definitions of organic minerals are very broad and frequently lead to confusion when decision-making becomes necessary. Organic minerals include any mineral bound to organic compounds, regardless of the type of existing bond between mineral and organic molecules. Proteins and carbohydrates are the most frequent candidates in organic mineral... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Chelated mineral; Organic mineral; Poultry. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200001 |
| |
| Registros recuperados: 159 | |
|
|
|
