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| Registros recuperados: 159 | |
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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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| da Silva,ICM; Ribeiro,AML; Canal,CW; Trevizan,L; Macagnan,M; Gonçalves,TA; Hlavac,NRC; de Almeida,LL; Pereira,RA. |
| One to 42-d-old (432) female broilers were fed different levels of inorganic selenium (ISe) and organic selenium (OSe), according to the following treatments: (1) 0.3 mg ISe; (2) 0.3 mg ISe + 0.2 mg OSe; (3) 0.5 mg ISe and (4) 0.3 mg OSe/ kg of feed. All birds were vaccinated against infectious bursal disease (IBD) at 19d of age and three birds/replicate (R) were inoculated with sheep red blood cells (SRBC) at 32d. Three other birds/R received Freund's adjuvant at 37d and avian tuberculin (AT) in the wattle at 47d of age. All birds were submitted to heat stress after 21d. Performance parameters, bursa and spleen weights, lymphocyte bursa depletion, antibody (Ab) production against IBD and SRBC, hematocrit, leukocytes, heterophil/lymphocyte ratio (H/L), and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibody; Broiler; Infectious bursal disease; Performance; Selenium. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000400005 |
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| Viola,TH; Kessler,A de M; Ribeiro,AML; Silva,ICM da; Krás,R. |
| Amino acid requirements can be studied maintaining or not the ratio of the amino acids to lysine and changing or not dietary crude protein level. A third alternative was studied in this study conducted to evaluate broiler performance and weight gain of carcass parts, in response to increasing dietary digestible lysine (dig Lys) levels (0.70, 0.80, 0.90, 1.00, 1.055, 1.11, 1.165, and 1.22%). Two basal diets were formulated to contain 19.0% (diet A) and 20.5% (diet B) crude protein, and Met, Arg and Thr levels were formulated to maintain their ideal ratio to Lys. Three hundred and twenty CobbXCobb500 broilers, from 19 to 40 days of age, were used. Basal diet A was set for the 4 lowest levels of dig Lys, and diet B for the other four levels. Body weight (BW),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid balance; Basal diets; Broiler; Lysine; Protein. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300003 |
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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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| Khan,M; Chand,N; Khan,S; Khan,RU; Sultan,A. |
| ABSTRACT A total of 120 one-day-old broiler chicks (Ross 308) were randomly assigned to 12 pens of 10 birds in a completely randomized design (CRD). In four experimental diets, soya bean meal was replaced with a maggot meal at the rate of 0, 40, 50 and 60% designated as group A, B, C and D respectively. Body weight was significantly higher (p<0.05), whereas feed intake and feed conversion ratio (FCR) were significantly lower in group D than group A and B. Dressing percentage and apparent metabolizable energy were significantly (p<0.05) higher in group D than group A, B and C. Digestibility of dry matter, crude protein, ether extract and ash were significantly (p<0.05) higher, and crude fiber was significantly (p<0.05) lower in group D than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Digestibility; Maggot meal; Protein; Soybean meal.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100009 |
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| Vieira,SL; Viola,ES; Berres,J; Coneglian,JLB; Freitas,DM; Bortolini,TCK. |
| A study was conducted to compare live performance and digestive metabolism of broiler chickens fed all-vegetable diets (All-Veg) compared to a regular diet including animal by-products. Three feeds were formulated and provided to broilers according to the feeding program: pre-starter from 1 to 10 days, starter from 11 to 21 days, and grower from 21 to 35 days. All feeds had corn and soybean meal as major ingredients; however, two of them were all-vegetable diets having either Degummed Soybean Oil (DSO) or Acidulated Soybean Soapstock (ASS) as fat sources. The third diet included poultry by-product and poultry fat. A total number of 360 day-old broiler chicks were allocated to 1m² battery cages, 10 chicks in each, and 12 replicates per treatment. Live... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidulated soybean soapstock; All vegetable diets; Broiler; Metabolizability; Water intake. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300004 |
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| Yasar,Sulhattin; Yegen,Mustafa Kemal. |
| ABSTRACT We investigated the effects of dietary supplementations of yeast (YFA) or non-yeast fermented additives (NYFA) at 5.0 and 10 g kg−1 on the performance parameters and the size of digestive organs of broiler chickens. An isocaloric and isonitrogenous basal diet used as negative control was added with 5.0 or 10.0 g kg−1 of YFA or NYFA. Each of five experimental diets was given to broiler chickens kept in three randomized floor pens, each with 21 birds, from one-day old to 42 days old. Although the feed intake of broiler chickens was not significantly influenced by the diets, there were significant increases in weight gain and improvements in feed conversion ratio and carcass yield in broiler chickens fed the diets supplemented with 5.0 and 10 g kg−1... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Fermentation; Microbial additive; Yeast. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017001000814 |
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| Registros recuperados: 159 | |
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