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| Registros recuperados: 159 | |
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| Uddin,Mohammad Mejbah; Islam,Mohammad Saiful; Basu,Joyita; Khan,Md. Zahirul Islam. |
| Gumboro disease is caused by the infectious bursal disease virus (IBDV) which rapidly destroys immature B-lymphocytes of bursa of Fabricious, and causes immune suppression and high mortality in commercial broiler farms in Bangladesh. To investigate the possible effect of IBDV on lymphocytes and its distribution in the major lymphoid organs, bursa of Fabricious including spleen and thymus of naturally Gumboro-infected broilers, a research was conducted in the Department of Anatomy and Histology, collaboration with the Department of Pathology, Bangladesh Agricultural University, Bangladesh. Bursa of Fabricious, spleen and thymus of 21-days-old Gumboro-infected and non-infected broilers of same age (control) were routinely processed and stained by hematoxylin... |
| Tipo: Journal article |
Palavras-chave: Lymphocyte; Gumboro; Lymphoid organs; Broiler. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400050 |
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| Ferraz,Patrícia Ferreira Ponciano; Yanagi Junior,Tadayuki; Lima,Renato Ribeiro de; Ferraz,Gabriel Araújo e Silva; Xin,Hongwei. |
| Abstract: The objective of this work was to evaluate the effect of thermal challenge at different intensities and durations on the production responses of 3 to 21-day-old broiler chickens. Two hundred and ten Cobb chicks were subjected to dry-bulb temperatures (tdb) of 27, 30, 33, or 36°C for the duration of 0, 1, 2, 3, or 4 days from the second day of life onwards. The experiment was carried out in four identical environmentally-controlled wind tunnels. Data on body mass (BM), feed intake (FI), and water intake (WI), all in grams, were monitored daily; and body weight gain (BWG), in grams, and feed conversion (FC) were also calculated. The effect of duration was not statistically significant. Empirical models were adjusted to relate BM, FI, and WI with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Air temperature; Broiler; Carry-over effect; Production responses; Thermal stress.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000200113 |
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| Ferraz,Patricia Ferreira Ponciano; Yanagi Junior,Tadayuki; Hernández Julio,Yamid Fabián; Castro,Jaqueline de Oliveira; Gates,Richard Stephen; Reis,Gregory Murad; Campos,Alessandro Torres. |
| The objective of this work was to develop, validate, and compare 190 artificial intelligence-based models for predicting the body mass of chicks from 2 to 21 days of age subjected to different duration and intensities of thermal challenge. The experiment was conducted inside four climate-controlled wind tunnels using 210 chicks. A database containing 840 datasets (from 2 to 21-day-old chicks) - with the variables dry-bulb air temperature, duration of thermal stress (days), chick age (days), and the daily body mass of chicks - was used for network training, validation, and tests of models based on artificial neural networks (ANNs) and neuro-fuzzy networks (NFNs). The ANNs were most accurate in predicting the body mass of chicks from 2 to 21 days of age... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal welfare; Artificial neural network; Broiler; Modeling; Neuro-fuzzy network; Thermal comfort. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000700559 |
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| Makdisi, Fadi; Marggraf, Rainer. |
| Estimating the value consumers place on farm animal welfare (FAW) can predict the extent to which consumers are ready to support policy changes aimed at improving the welfare of farm animals and developing animal-friendly production systems that can also compete on markets. This study aimed at exploring consumer preferences and willingness-to-pay (WTP) for broiler meat in Germany which is certified as having been produced under a system that caters for FAW. In addition, logistic and linear regression models were estimated to examine the factors affecting consumers’ decision to buy certified FAW products. The data was obtained from a survey of 300 German broiler consumers, which was designed using the contingent valuation methodology. The results showed... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm animal welfare (FAW); Broiler; Contingent valuation method (CVM); Willingness-to-pay (WTP); Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/115359 |
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| Colom, Ale; Gosalvez, M.; Clop-Gallart, M. Merce; Averos, X.; Juarez, L.; Gosalvez, L.. |
| To know the Spanish homes reasons of purchasing broiler meat a survey of 1,000 families, by means of a 13 question interview, was carried out during 2007. After processing the information it was concluded that Spanish families purchase food an average of 2.34 times/week, 95% of which do not exceed 100 € and, with the exception of more than 400 € purchases, in more than 90% of which broiler meat accounts for more than 14% of the spent budget. Broiler meat is bought near home, in butcher’s shops or supermarkets, with purchases via telephone or the internet being marginal. The main declared benefits of consuming broiler meat were the low fat content, being a healthy meat, and being proper in a healthy diet. Surprisingly, 72% of interviewees did not see any... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Home demand; Broiler; Meat Consumption; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety. |
| Ano: 2008 |
URL: http://purl.umn.edu/43545 |
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| 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 |
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| Daneshmand,A; Sadeghi,GH; Karimi,A. |
| A study was conducted to evaluate the combined effects of garlic, oyster mushroom and propolis extract on the growth performance, organ weights, antibody response to Newcastle Disease Virus (NDV), serum lipid concentrations and nutrient digestibility of male broilers. A total of 192 day old chicks (Ross 308) were randomly assigned to 3 treatments with 4 replications (16 birds per replication). Experimental treatments were a maize- soybean based diet as control, control diet supplemented with a combination of garlic (30 g/kg), oyster mushroom (2 g/kg) and propolis extract (0.2 g/kg) known as GMP, and control diet supplemented with Virginamycin (0.25 g/kg) as antibiotic. The inclusion of GMP decreased (p < 0.05) live body weight, average daily gain and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Garlic; Mushroom; Propolis; Performance; Immunity; Broiler. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000200009 |
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| Yildirim,M; Taskin,A. |
| ABSTRACT This study aims to examine the effects of environmental enrichment (EE) practices on some physiological and behavioral parameters of broiler chicks. A total of 280 one-day old Ross 308 mixed-sex broiler chicks with an average initial body weight of 44.5±0.37 g were used in a 42-d trial. Broiler chicks were randomly allocated to 20 pens composed of 14 birds in 1x1.4m sized floor area. Each of the EE treatment consisted of 5 replicate pens (70 chickens per treatment). The treatments were 1) control; 2) perch for EE; 3) ball for EE; 4) mirror for EE; and 5) dust for EE. Final body weights, tonic immobility test results, and rectal temperatures were recorded. Spleen, liver, and bursa fabricius weights were measured. The blood biochemistry of birds was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavior; Broiler; Environmental enrichment; Tonic immobility. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000200355 |
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| Vieira,SL; Stefanello,C; Rios,HV; Serafini,N; Hermes,RG; Sorbara,JOB. |
| A trial was conducted to evaluate the effects of adding an exogenous α-amylase-β-glucanase complex produced from Bacillus amyloliquefaciens on the growth performance, carcass yield, and relative AME bioequivalence in broilers fed corn-soy diets from 1 to 40 d of age. One thousand seven hundred and fifty one-day-old Cobb x Cobb 500 slow-feathering male broilers were randomly allotted to seven treatments with 10 replicates of 25 birds each as follows: control diet (C); C diet with reduction of 60 (C-60), 90 (C-90), or 120 (C-120) kcal AME/kg; C diet with reduction of 120 kcal AME/kg and supplemented with 200 (C-120-200), 300 (C-120-300), or 400 (C-120-400) mg of the enzyme complex/kg. Each g of the enzyme complex corresponded to 200 kilo-Novo α-amylase and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Α-amylase; Β-glucanase; Broiler; Carbohydrases; Enzyme. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200227 |
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| Vieira,SL; Favero,A; Berres,J; Freitas,DM; Martinez,JEP; Mayorga,ME; Coneglian,JLB. |
| A study was conducted with the objective of evaluating the combined application of tiamulin (TIA) and salinomycin (SAL) in broiler diets fed from 1 to 42 d of age. One thousand and two hundred Cobb x Cobb 500 male broilers were housed in 48 floor pens and fed corn-soybean meal diets containing 66 ppm of SAL combined or not with TIA at 30 or 20 and 20 or 15 ppm, respectively, in the starter (1-21 d) and grower feeds (22-42 d); however, TIA was withdrawn from the feeds 7 days before slaughter. The experimental design was completely randomized with 3 treatments and 16 replicates of 25 birds each. Broilers were weekly evaluated for live performance whereas carcass yield, abdominal fat and commercial cuts were assessed at 42 d using 6 birds randomly taken from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibiotic; Broiler; Ionophores; Salinomycin; Tiamulin. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100005 |
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| 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 |
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| Fidan,ED; Kaya,M; Nazligul,A; Türkyilmaz,MK. |
| ABSTRACT The first aim of this study was to investigate the effects of perch cooling and different litter thicknesses on litter quality of the housing facility, welfare criteria (incidence of footpad and hock burns, gait score, plumage cleanliness and damages), heterophil/lymphocyte ratio, growth, and carcass compositions of broilers reared at high ambient temperature. Secondly, the study was conducted to determine whether cooled perches would be preferred by broiler chickens exposed to a hot environment, and subsequently, whether the utilization of these perches would improve the welfare and performance of broilers, beyond those provided by non-cooled perches. A total of 459 1-day-old male broiler chicks were randomly assigned to nine treatment groups... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Cool perch; Footpad dermatitis; Heterophil/lymphocyte ratio; Perching. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300306 |
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| Registros recuperados: 159 | |
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