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| Registros recuperados: 1.268 | |
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| Suzer,B; Petek,M; Tufekci,K; Arican,I; Abdourhamane,IM; Yildiz,H. |
| ABSTRACT This study aimed to compare some morphological and mechanical measurements of four different color female quails to contribute to the formation of the morphological database. Quails are the smallest farmed avian species which are becoming more important for the poultry industry. They are also used as experimental animals and are valuable birds for researches. Genetic factors are important determinants of bone strength. Thus, skeletal disorders may be reduced by breeding selection in quails. Forty female quails with four different feather colors, including wild, white, yellow, and black, were compared at 60 days of age. Each quail group contained ten individuals. A three-point bending test was performed with a custom-made testing machine designed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone strength; Feather mutation; Quail; Tibiotarsus. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000200308 |
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| Morgado,HS; Cysneiros,CSS; Sousa,CM; Stringhini,JH; Ulhoa,CJ; Silva,AS; Fabino Neto,R; Freitas,PVDX; Oliveira,HP; Batista,LHC. |
| ABSTRACT Two experiments were performed to evaluate the hematological and blood biochemistry parameters, biometry of digestive organs, enzyme activities, protein content and absolute weight of the pancreas of broilers fed pre-starter and pre-starter diets supplemented or not with amylase from Aspergillus awamori. In total, 120 male Cobb chicks were housed in heated cages in each experiment. A completely randomized experimental design, with two treatments (feed with and without amylase) and six replicates per treatment of 10 birds each was applied. The data were subjected to analysis of variance using the F-test at 5% probability level. The dietary amylase addition did not affect hematological and blood biochemistry parameters and the biometry of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood; Chickens; Fungi; Nutrition. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400725 |
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| Jácome,IMTD; Rossi,LA; Borille,R. |
| In Brazil, the egg production chain produces fresh eggs for the consumer market and for processing. Layers are housed in battery cage systems. Rearing and development farms are separate from egg-production farms. Considering the recent advance of Brazilian chicken egg production, scientific knowledge on management practices are required to disseminate and to consistently apply this knowledge to improve such practices. Artificial lighting is widely used in poultry reproduction, both in the production of hatchable eggs and of commercial eggs. Light is required for the release of hormones responsible for reproduction; however, the best lighting practices to stimulate laying poultry during the reproductive period still need to be determined, with the aim of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Photostimulation; Lighting programs; Sexual maturity; Egg production. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400001 |
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| Majidi-Mosleh,A; Sadeghi,AA; Mousavi,SN; Chamani,M; Zarei,A. |
| ABSTRACT The objective of the present study was to evaluate the effects of in ovo infusion of probiotic strains (Bacillus subtilis, Enterococcus faecium, and Pediococcus acidilactici ) on jejunal microbial population and mucin gene expression in broiler chicken. In a completely randomized design, 0.5 ml of mediums containing 107 cfu of different probiotic strains, was administered into amniotic fluid of the 480 Cobb fetus (day 18 of incubation), with four treatments, five replicates with twenty four eggs each. For mucin gene expression, samples from the jejunum were taken on day 21 of incubation and day 3 post-hatch. Microbial profile was determined for total lactobacillus and E. coli by sampling jejunal contents on days 1 and 3 of age. Expression of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: In ovo infusion; Jejunum; Microbial population; QPCR; Probiotic. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000500097 |
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| Duarte,KF; Junqueira,OM; Borges,LL; Rodrigues,E; Filardi,R da S; Praes,MFFM; Laurentiz,AC de; Domingues,CH de F. |
| This study was carried out to evaluate the effect of the inclusion of different linseed oil levels (0.0, 3.3, 6.6, or 9.9%) in iso-energy diets fed during the period of 21 to 56 days of age on the performance, carcass traits, and body composition of broilers. A total of 1,600 broilers were distributed according to a completely randomized experimental design consisting of four treatments with eight replicates of 40 birds per experimental unit. In the period of 21-42 days of age, weight gain increased, feed and calorie conversion ratios quadratically improved, and feed and metabolizable energy intakes linearly increased as dietary linseed oil level increased. Considering the entire experimental period, dietary linseed oil linearly increased weight gain and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ether extract; Weight gain; Abdominal fat; Crude protein; Carcass yield. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000100008 |
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| Rosa,PS; Faria Filho,DE; Dahlke,F; Vieira,BS; Macari,M; Furlan,RL. |
| In order to evaluate the effects of broiler genotype and of heat exposure on performance, carcass characteristics, and protein and fat accretion, six hundred one-day-old male broilers were randomly assigned in a 2 x 3 factorial arrangement, according to the following factors: genetic group (selected and non-selected broilers) and pair-feeding scheme (Ad32 - reared under heat stress and fed ad libitum; Ad23 - reared at thermoneutrality and fed ad libitum; Pf23 - reared at thermoneutrality and pair fed with Ad32), with a total of six treatments with four replicates of 25 birds each. Independent of pair-feeding scheme, selected broilers showed better feed conversion, higher carcass yield, and lower abdominal fat deposition rate. However, as compared to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allometric coefficient; Carcass yield; Genetic improvement; Heat stress. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000300007 |
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| Machado,CA; Fernandes,EA; Carvalho,LSS; Litz,FH; Gotardo,LRM; Braga,PFS. |
| ABSTRACT This study aimed to evaluate the effect of maltodextrin on performance of chicks passed through four fasting periods. A completely randomized design was performed, consisting of three treatments (1 - control, 2 - 4% saccharose; 3-4% maltodextrin 20) and four fasting periods after hatching (0, 12, 24 and 36 hours) with four replications, totaling 1920 birds of both sexes. The studied variables were: water intake in the first 12 hours, average food intake, average body weight and real feed conversion. Data was submitted to analysis of variance and means were compared with each other by Dunnett test at 5% significance. The use of additives and imposing of different fasting periods did not influence the performance at 42 days old. Therefore, fasted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Broiler; Productivity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000500009 |
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| Porto,ML; Givisiez,PEN; Saraiva,EP; Costa,FGP; Moreira Filho,ALB; Andrade,MFS; Brandão,PA; Guerra,RR. |
| ABSTRACTThe objective of this study was to evaluate the effects of 1% dietary glutamic acid on the body weight, intestinal morphometry, and anti-Newcastle antibody titers of broiler chickens submitted to heat stress. One-d-old male broiler chicks (n=120) were distributed according to a 2 x 2 factorial design with two environmental temperatures (thermoneutral or heat stress) and two diets (with 0 or 1% glutamic acid). Heat stress temperature was constantly maintained (24h/day) 5 ºC higher than the thermoneutral temperature. Diets supplied the nutritional requirements of broilers in the pre-starter (1 to 7d) and starter (8 to 21d) phases. Birds were vaccinated against Newcastle disease on d 7 via eye drop. On days 5, 10, 15, and 20, individual body weight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid; Duodenum morphology; Environmental temperature; Humoral immunity; Heat stress; Performance.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300355 |
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| Silva,PS da; Batinga,T de B; Sales,TS; Herval,EFG; Ramos,I; Maia,PCC; Fernandes,LMB. |
| This paper describes the identification of an outbreak of fowlpox in backyard chickens in two villages the state of Bahia, the intervention strategy to control the disease by adopting health measures and vaccination, as well as the impact of the intervention. The diagnosis was based in clinical and laboratory data. After the diagnosis was confirmed, control measures and the vaccination of non-infected birds were recommended. Finally, the impact of the intervention on re-incidence of the disease was evaluated. A number of 700 chickens was vaccinated, after which only 9% of the farmers reported the occurrence of new cases, and 70% informed the acquisition of new birds after vaccination. The information reported in this paper can be useful to design strategic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Backyard chickens; Control and prevention; Fowlpox. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000200007 |
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| Guimarães,CC; Silva,AJI; Cruz,FGG; Rufino,JPF; Silva,AF; Costa,VR. |
| ABSTRACT This study aimed at evaluating the effects of the physicochemical and nutritional characteristics of a biological silage meal made of tambaqui waste on dietary nutrient apparent digestibility and energy metabolism of commercial layer diets. Seventy-two 61-week-old Hisex White hens were assigned according to a completely randomized experimental design in two treatments: control diet and diet with 5% tambaqui waste biological silage meal (TWBSM), with six replicates of six birds each. The ensiled biomass presented grey brown color, acid aroma, viscous texture, 5.27±0.016pH, 96.28% dry matter (DM), 33.29% crude protein (CP), 33.65% ether extract (EE), 14.37% ashes, 13.63% non-nitrogen extract (NNE), 65.16 g.kg-1 calcium (Ca), 22.90 g.kg-1 phosphorus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative food; Fish waste; Metabolizable energy; Nutrients; Silage. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300321 |
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| Iafigliola,MC; Menten,JFM; Racanicci,AMC; Gaiotto,JB. |
| Foi realizado um experimento objetivando avaliar os efeitos de promotores de crescimento sobre o desempenho e a temperatura corporal de frangos de corte, no período de 1 a 42 dias de idade. Os tratamentos consistiram de uma ração basal não suplementada (Controle), ou suplementada com 200 mg de Cu/kg de sulfato cúprico pentahidratado (Sulfato), 75 mg de Cu/kg de citrato cúprico anidro (Citrato), 20 mg/kg de virginiamicina (VM), ou a associação Citrato + VM, em um experimento em blocos casualizados com seis repetições de 40 aves, criadas sobre cama reutilizada. Não se observou efeito de tratamentos na fase inicial. Na fase final os tratamentos não afetaram o consumo de ração e o ganho de peso, enquanto a conversão alimentar foi melhor para o VM comparado ao... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Frangos de corte; Desempenho; Cobre; Virginiamicina; Temperatura corporal. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000300002 |
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| Muñoz,JA; Suckeveris,D; Demuner,LF; Saccomani,APO; Silva,AL; Silva,RT; Faria Filho,DE; Faria,DE. |
| ABSTRACT The objective of this study was to evaluate the effects of dietary nutrient levels on performance, carcass yield, commercial cuts, digestibility and economical viability of broilers from 1 to 42 days of age. During the experiment, 180 COBB 500™ chicks were housed in metal batteries and subjected to a completely randomized design in a 2x3 factorial arrangement, of two sexes and three diets (male, female and mixed), totaling 6 treatments and 6 repetitions of 5 birds each. Data were subjected to statistical analysis and the means were compared using the Tukey test, at 5% probability. The results indicate the effect of sex on performance and commercial cuts, except for breast and thigh fillets, in which males and females showed similar results when... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Economic viability; Metabolizability; Nutrition; Nutritional requirement; Poultry.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100053 |
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| Sakamoto,MI; Murakami,AE; Silveira,TGV; Fernandes,JIM; Oliveira,CAL de. |
| This study aimed at evaluating the influence of Glutamine (Gln) and Vitamin E (VE) supplementation on the performance and immune response of broilers. A completely randomizes experimental design with a 2 x 3 (VE x Gln) factorial arrangement was used. VE was supplemented at 10 and 500 mg/kg feed, with or without Gln (1%) addition, and two periods of supplementation in the starter diets (1-7 and 1-14 days of age), with five replicates of 50 birds each. The analyzed parameters were: live performance (weight gain, feed intake, and feed conversion ratio); relative weights of the spleen, bursa, and thymus; antibody titers (with sheep red blood cells suspension - SRBC) and cutaneous basophilic hypersensivity (CBH). Data were submitted to the analysis of variance,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibodies; Sheep red blood cells; Cutaneous basophilic hypersensitivity. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000400007 |
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| Chernaki-Leffer,AM; Biesdorf,SM; Almeida,LM; Leffer,EVB; Vigne,F. |
| O objetivo deste trabalho foi realizar o isolamento de bactérias da família Enterobacteriaceae em adultos de A. diaperinus, buscando uma correlação entre as bactérias presentes no inseto e na cama, em aviários para produção de frangos de corte no oeste do Paraná, Brasil. No primeiro experimento, insetos adultos foram coletados em 14 granjas. No segundo experimento, foram coletados insetos e material da cama de 12 diferentes aviários. Os adultos foram anestesiados com éter, macerados em solução salina e o material da cama colhido por "swab" de arrasto. O enriquecimento não seletivo foi feito com caldo BHI e o seletivo com Rappaport-Vassiliadis e Tetrationato. Os meios de cultivo para plaqueamento foram o ágar MacConkey, ágar Salmonella-Shigella e ágar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alphitobius Diaperinus; Enterobactérias; Granjas avícolas. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000300009 |
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| Pilecco,M; Almeida Paz,IC de L; Tabaldi,LA; Nääs,IA; Garcia,RG; Caldara,FR; Andrela,GO. |
| Carcass quality is one of the main parameters to evaluate broiler welfare, and the presence of back scratches indicates that the birds were submitted to stress. The objective of this study was to identify the best management practices during rearing and catching, taking into consideration broiler genetic differences (genetic lines A and B) and sexes. The survey was carried out in 351 broiler houses belonging to an integrated company and located in the region of Dourados, MS, Brazil. Between January and October, 2010, 2% of broilers of all ages (one to 43 days old) in all flocks were sampled. The sampled flock was evaluated in 21 d intervals. Scratches were classified as present or absent. The results indicated that catching management has the strongest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AHP; Poultry production; Catching; Carcass. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400007 |
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| Junqueira,OM; Araújo,LF; Araújo,CSS; Faria,DE; Laurentiz,AC; Dahlke,F. |
| Um experimento foi conduzido para estudar a adição do ovo em pó na dieta de frangos de corte no período de 1 a 28 dias, sendo dividido em duas fases (1 a 7 e 8 a 28 dias). No período de 1 a 7 dias, as aves receberam dietas contendo 0%, 5%, 10%, 15% e 20% de ovo em pó e de 8 a 28 dias de idade as aves foram distribuídas em um arranjo fatorial 2x5 (2 níveis de ovo em pó - 0% e 5% - e os 5 níveis da fase anterior). No período de 1 a 7 dias as aves do tratamento controle apresentaram melhor ganho de peso e as aves alimentadas com dietas contendo 20% de ovo em pó apresentaram menor ganho de peso e pior conversão alimentar. As aves deste mesmo tratamento apresentaram também menor peso e comprimento do intestino. Na segunda fase (8 a 28 dias) não houve interação... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desempenho; Frangos de corte; Ovo em pó. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100007 |
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| Registros recuperados: 1.268 | |
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