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| Registros recuperados: 163 | |
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| Lopes, Claudia da Costa; Universidade Federal Rural de Pernambuco; Rabello, Carlos Bôa-Viagem; Universidade Federal Rural de Pernambuco; Silva Júnior, Valdemiro Amaro da; Universidade Federal Rural de Pernambuco; Holanda, Mônica Calixto Ribeiro de; Universidade Federal Rural de Pernambuco; Arruda, Emmanuele Maria Florêncio de; Universidade Federal Rural de Pernambuco; Silva, Jaqueline de Cássia Ramos da; Universidade Federal Rural de Pernambuco. |
| Objetivou-se avaliar o desempenho, a digestibilidade das dietas, a retenção corporal de nutrientes e o desenvolvimento da mucosa intestinal de pintos de corte de 1 a 8 dias de idade, alimentados com dietas contendo níveis crescentes de levedura de cana-de-açúcar. Utilizou-se 300 pintos de corte, com um dia de idade, distribuídos em delineamento inteiramente casualizado, composto de cinco tratamentos e seis repetições de 10 aves. Os tratamentos consistiram de níveis crescentes de 0; 1,25; 2,5; 3,75 e 5,0% de inclusão de levedura. Não houve efeito da levedura sobre o desempenho zootécnico. Houve redução no coeficiente de metabolizabilidade da energia bruta, na energia metabolizável aparente e a aparente corrigida com os níveis crescentes. O nível de 2,09%... |
| Tipo: Pesquisa de campo; análise laboratorial |
Palavras-chave: 5.04.00.00-2 avaliação nutricional; Frango de corte; Vilosidades intestinais; Retenção de nutrientes; Saccharomyces cerevisiae nutritional evaluation; Broiler; Intestinal villi; Nutrient retention; Saccharomyces cerevisiae. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10787 |
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| Moftakharzadeh, Seyed Adel; Moravej, Hossein; Shivazad, Mahmud. |
| In this study, we have evaluated the effect of three multi-enzymes nutrient matrix values and compared the results with that fed barley and the corn diets without enzyme. In entire period, addition of all enzymes to the barley-based diet significantly (p < 0.05) increased feed intake (FI) and the highest intake was for birds that fed enzyme A (p < 0.05). Overall, from 0 to 42 days, average daily gain (ADG) was significantly (p < 0.05) increased by enzyme and birds fed enzyme A had the highest body weight (p < 0.05). Generally, from 0 to 42 d of age, feed conversion ratio (FCR) was significantly (p < 0.05) improved when enzyme added to barley-based diet, but there were no significant differences among diets containing enzymes A and C and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal and poultry Science carbohydrase; Broiler; Performance; Nutrient matrix value. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/33070 |
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| Ebrahimi, Sajjad; Mesri Gundoshmian, Tarahom; Abdi, Reza; Raei Jadidi, Mehri. |
| The goal of this study was to evaluate the sustainability and efficiency of broiler production with regard to energy consumption in Ardabil province, Iran. To reach the goal, linear programming model and Data Envelopment Analysis (DEA) were employed. Data were collected from the farmers using a face–to–face questionnaire performed in September–December 2014 period. The DEA application results showed that the average values of technical, pure technical and scale efficiency scores of producers were 0.949, 0.988 and 0.960, respectively. Also, energy saving target ratio for broiler production was calculated as 8.33%, indicating that by following the recommendations resulted from this study, about 12316.85 MJ/(1000 bird) of total input energy could be saved... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy efficiency; Data Envelopment Analysis; Linear programming; Technical efficiency; Broiler. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3562 |
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| Oliveira,M.C.; Rodrigues,E.A.; Marques,R.H.; Gravena,R.A.; Guandolini,G.C.; Moraes,V.M.B.. |
| The performance and the morphology of intestinal mucosa of broilers fed mannan-oligosaccharides (MOS) and enzymes (E) from one to 21-day-old were evaluated using 750 one-day-old chicks, assigned to a 2 x 2 + 1 factorial design - two levels of MOS (0 and 0.1%), two levels of E (0 and 0.05%) plus an antibiotic positive control diet - performing five treatments of five replications each one. MOS x E interaction was significant for both duodenal (P<0.002 and P<0.002) and ileal (P<0.04 and P<0.05) perimeters and heights of villi, being the values lower in the mucosa of birds fed non-supplemented diets. MOS based-diet determined an increase on perimeter of jejunal villi (P<0.05). Compared with antibiotic treatment group, villi perimeter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Nutrition; Enzymes; Prebiotic. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000200025 |
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| Lara,L.J.C.; Baião,N.C.; Cançado,S.V.; Teixeira,J.L.; López,C.A.A.; Duarte,F.D.; Michalsky,V.B.. |
| The influence of weight classes (light, medium and heavy) of Ross chicks on performance and carcass yield and main cuts, was studied using a completely randomized design with six replicates of 30 males and 30 females each. The chicks were fed on the same diets during the growing period (1-43 days). The live weight, feed intake, feed:weight gain ratio, viability, carcass yield and main cuts (breast, whole leg, wing and back) and percentages of giblets (gizzard, liver, heart and guts) were analyzed. The heavy weight class chicks were heavier (P<0.05) than the light weight class chicks, during all the growing period and showed higher feed consumption (P<0.05) than the light and medium classes chicks. No differences among weight classes chicks concerning... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Initial body weight; Performance; Yield. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600015 |
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| Costa,C.A.F.; Guidoni,A.L.; Paiva,D.P.; Ávila,V.S.. |
| The effects of age, litter reutilization, and anticoccidial programs were studied in broilers. The oocyst counts increased with litter reutilization up to third use, and T1 (no anticoccidial drug over the entire 42-day-period) and T4 (anticoccidial medication starting from the first day) showed the highest counts. The scores for Eimeria acervulina increased up to third use of litter and declined by the fourth use. The scores for E. maxima increased from first to second litter use, and from this to third and fourth use. The scores for E. tenella increased from first and second litter use to third litter use, and declined on fourth use. With high coccidial contamination, as in third use litter, the anticoccidial medication starting from the 1st, 7th (T3) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Coccidiosis; Anticoccidial program; Performance. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000200010 |
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| Lara,L.J.C.; Baião,N.C.; Aguilar,C.A.L.; Cançado,S.V.; Fiuza,M.A.; Ribeiro,B.R.C.. |
| A completely randomized design with six replicates of 30 birds per experimental unit was used to evaluate the effect of five fat sources of diets (soybean oil, poultry fat, acidulated soybean oil soapstock and a mix of soybean oil plus poultry fat and soybean oil plus acidulated soybean oil soapstock) on the performance of male Ross broilers, during the growing period (1-45 days of age). The diets for each phase were isonutritional. Broilers fed on soybean oil showed higher weight gain in comparison to the birds fed on diets containing acidulated soybean oil soapstock (P<0.05), but no differences were observed among the other treatments. The feed intake of birds fed on soybean oil was higher compared to the birds fed on acidulated soybean soapstock diet... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Performance; Soybean oil; Acidulated soybean; Oil; Poultry fat oil. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600014 |
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| Rezende,M.J.M.; Veloso,J.A.F.; Turchetti-Maia,R.M.M.. |
| The cyclic adenosine 3, 5-monophosphate (cAMP) production was evaluated in liver thin sections of broiler chicks fed on a experimental diet containing bicalcium phosphate or Araxá rock phosphate (ARP) as source of P, with a high content of fluorine, at different ages: from the first to the 42nd and from the 21st to the 42nd day of age. The intake of the ARP formulated diet starting from birth elicited an increase of cAMP production in broiler liver. However, when this diet was offered after the 21st day of age, the hepatic cAMP production in broilers was not significantly (P>0.05) affected, suggesting that the effect of high fluorine present in Araxá rock phosphate, on hepatic cAMP of broiler chicks depends on the age in which the experimental diet is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fluorine; Cyclic-adenosine monophosphate; Broiler. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09351999000500014 |
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| Oliveira,R.P.; Ducatti,C.; Carrijo,A.S.; Pezzato,A.C.; Denadai,J.C.; Sartori,J.R.; Cruz,V.C.. |
| The inclusion of poultry viscera meal (VM) in broiler diets to possibly replace it with strictly vegetable diet (VE) and vice-versa, using the technique of carbon and nitrogen stable isotopes in different tissues was traced. One hundred ninety-two one-day-old chicks that had been distributed randomly were used in twelve experimental treatments with four replications of four chicks each. The treatments consisted of vegetable diet (VG) for diets containing FV going after a certain age or the reverse, in which the birds began feeding VM on diet and then switched to VE diet. At 42 days of age, samples of pectoral muscle (Pectoralis major), keel and tibia were collected, with later determination of isotopic ratios (13C/12C and 15N/14N). The stable isotopes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Poultry viscera meal; Stable isotopes; Carbon-13; Nitrogen-15. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000500033 |
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| 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 |
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| Rios,R.L.; Marin,S.Y.; Gomes,A.M.; Resende,J.S.; Bonfim,M.R.Q.; Gomes,A.D.; Resende,F.M.S.; Horta,R.S.; Resende,M.; Martins,N.R.S.. |
| Fifty-four fecal samples taken from broiler chickens from 1 to 45 days of age, and of pullets from 10 to 13 weeks of age, original from eight different poultry regions in the state of Minas Gerais, Brazil, were collected from March 2008 to January 2010 for avian Orthoreovirus (ARV) and avian Rotavirus (AvRV) analyses. For the assay of ARV, RNA was immediately extracted (Trizolâ) and transcribed into cDNA for assaying in a nested-PCR with ARV-specific primers. For AvRV, polyacrylamide gel electrophoresis (PAGE) was performed with RNA extracts obtained by phenol-chloroform extraction. CAV was additionally investigated through a nested-PCR of thymus and spleen. Results found 5.55% positive for ARV and 9.25% for AvRV. Also, CAV and ARV genomes were detected in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Layer; Chicken anemia virus; CAV; Avian reovirus; ARV; Avian rotavirus; AvRV; Nested-PCR; PAGE. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000600030 |
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| Zanini,S.F.; Vicente,E.; Colnago,G.L.; Pessotti,B.M.S.; Silva,M.A.. |
| The effect of dietary conjugated linoleic acid (CLA) in association with two vegetable oil sources on the fatty acids of meat and giblets of broiler chickens was evaluated. Two hundred 21-day-old broiler chickens were distributed in a completely randomized factorial design 2 x 5 (two oil sources, soybean or canola oil; and five levels of CLA, 0.0, 2.5, 5.0, 7.5, and 10.0g/kg). The addition of CLA to the diet resulted in an increase (P<0.05) in CLA deposition in the analyzed tissues. CLA supplementation also reduced (P<0.05) the rate of polyunsaturated to saturated fatty acids in thigh, breast, heart, and gizzard. There was interaction of CLA x oil source (P<0.05). The intake of soybean oil, associated with increasing CLA, resulted in an increase... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Conjugated linoleic acid; Canola oil; Soybean oil; Meat. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000600013 |
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| Mirhosseini,Seyed Ziaeddin; Seidavi,Alireza; Shivazad,Mahmoud; Chamani,Mohammad; Sadeghi,Ali Asghar; Pourseify,Reza. |
| The objective of this study was to establish a specific, sensitive and rapid PCR approach for the detection of Clostridium sp. at the genus level. Clostridium sp. in the duodenum, jejunum, ileum and cecum of broiler chickens were analyzed by 16S rRNA genes. The PCR detected the presence of Clostridium spp. in naturally contaminated intestinal samples. For the total gastrointestinal segments, 53.125, 65.625 and 59.375% samples were positive for naturally occurring Clostridium spp. at the ages 4, 14 and 30d, respectively. Analysis of the microbial contents indicated that Clostridium sp. was not consistently detected in all intestinal segments. These results can put in evidence the hypothesis that Clostridium spp. may be interfering in health and performance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clostridium spp.; Broiler; Gastrointestinal; Age; 16S rRNA genes. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100009 |
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| 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 |
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| 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 |
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| González-Hein,Gisela; Huaracán,Bernardo; García,Patricia; Figueroa,Guillermo. |
| Campylobacter jejuni isolates of different origins (bovine, broiler meat, human) were screened by polymerase chain reaction for the presence of 4 genes cdtB, cst-II, ggt, and virB11, previously linked to virulence such as adherence, invasion, colonization, molecular mimicry, and cytotoxin production. In addition, the isolates were screened for the presence of the global gene regulator csrA linked to oxidative stress responses, biofilms formation, and cell adhesion. All the C. jejuni isolates were positive for cdtB gene. The csrA gene was detected in 100% and 92% of C. jejuni isolates from human and animal origin and the virB11 gene was detected in 7.3% and 3.6% isolates from chicken and human respectively. All isolates from bovine were negative for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campylobacter jejuni; Virulence; Guillain Barré syndrome; Broiler; Bovine. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400028 |
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| 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 |
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| Registros recuperados: 163 | |
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