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Aceite de orégano (Lippia graveolens) como antioxidante en la peroxidación lipídica de la carne de pollos de engorda Colegio de Postgraduados
Zacatula Mier, Heriberto.
En la alimentación humana, la carne es una parte importante de la dieta, representa aproximadamente 11% del total del consumo de alimentos. La carne de pollo, por su alto valor nutrimental, bajo costo y alta disponibilidad, es uno de los productos de origen animal de mayor consumo y aceptación. Lo que ha resultado que a nivel mundial, en los últimos 30 años su producción se haya cuadruplicado, mientras que la de otras especies, como la de cerdo, sólo ha duplicado su volumen (FAO, 2007). En las últimas décadas una parte importante de la investigación en el ámbito de la nutrición animal se ha dirigido a mejorar el valor nutritivo de los alimentos de origen animal, para ofrecer al consumidor un producto de acuerdo a su demanda y necesidades, con...
Tipo: Tesis Palavras-chave: Broiler chickens; Oregano oil; Lipid oxidation; Malondialdehyde; Lippia gravenolus.
Ano: 2009 URL: http://hdl.handle.net/10521/1169
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Aflatoxins and fumonisins in feed from a broiler operation system from São Paulo state, Brazil Ciência Rural
Kobashigawa,Estela; Corassin,Carlos Humberto; Franco,Larissa Tuanny; Uliana,Rômulo Dutra; Oliveira,Carlos Augusto Fernandes de.
ABSTRACT: The aim of the present study was to assess the occurrence of aflatoxins (AFs) and fumonisins (FBs) in feed ingredients (corn and soybean meal) and finishing feed in a broiler operation system, as well was to evaluate their effect on the productivity of 20 batches of broilers produced and the histology status of broilers’ liver after slaughter. Corn samples presented the highest frequencies of AFs and FBs, at mean levels of 29.1 and 2,100µg/kg, respectively. Soybean samples presented mean levels of 1.5 and 70µg/kg for AFs and FBs, respectively. Batches of broilers receiving feed containing FB levels higher than 1,000µg/kg had lower weight gain and higher mortality rates, while those fed rations with AFs equal or above the limit of quantification...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycotoxins; AFB1; FB1; Broiler chickens; Productivity.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200652
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AN APPROACH TO A MICROBIOLOGICAL RISK ASSESSMENT IN THE POULTRY SECTOR IN TRINIDAD AgEcon
Dookeran, Mark M.; Baccus-Taylor, Gail S.H.; Akingbala, John A..
International studies and epidemiological data have revealed a strong association between salmonellosis and chicken meat. This association provides serious challenges for food safety and international trade. Microbiological Risk Assessment is a food safety tool that is used to determine the incidence of food borne illnesses. The procedure identifies a microbiological hazard in the entire food continuum (from farm to fork), and estimates the adverse effects to human health, of ingesting the microbial hazard. The Assessment integrates four steps, hazard identification, hazard characterisation, exposure assessment and risk characterisation, to produce a practical estimate of risk. In each step, knowledge of the prevalence and concentration of the pathogen,...
Tipo: Conference Paper or Presentation Palavras-chave: Broiler chickens; Salmonellosis; Microbiological risk; FAO/WHO; CAREC; CAES; Agribusiness; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; International Development.
Ano: 2007 URL: http://purl.umn.edu/36952
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Artemisia Annua as Phytogenic Feed Additive in the Diet of Broilers (14-35 Days) Reared under Heat Stress (32 ºC) Rev. Bras. Ciênc. Avic.
Saracila,M; Criste,RD; Panaite,TD; Vlaicu,PA; Tabuc,C; Turcu,RP; Olteanu,M.
ABSTRACT The 21 days feeding trial was conducted on 90, Cobb 500 broilers (aged 14 days), assigned to 3 groups (C, E1 and E2) housed in an experimental hall at 32° C constant temperature and 23 h light regimen. During the growth period (14-35 days), the conventional diet (C) had corn and soybean meal as basic ingredients. Unlike the conventional diet formulation (C), the diet formulations for the experimental groups also included 0.005% Artemisia annua oil (E1) and 0.005% Artemisia annua oil plus 1% Artemisia annua powder (E2). Six broilers per group were slaughtered at 35 days of age in order to measure the weight of the carcass and internal organs of broilers, and samples of intestinal and caecal content were collected for bacteriological assessment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Artemisia annua; Broiler chickens; Growth performance; Gut microbiota; Heat stress.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400825
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BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE International Journal of Morphology
Soares da Silva Araújo,Cristiane; Martinez Baraldi Artoni,Silvana; Francelino Araújo,Lúcio; Jeferson Quirino Lousada,Mário; Mack Junqueira,Otto; Roque Rodriguez,Anita Isabel.
Two experiments were conducted in order to evaluate the effects of different dietary amino acid and calcium profiles on the bone characteristics of two chicken strains (Avian Farms and Cobb) during the starter phase. At the end of each experiment, 2 chickens of each replicate were sacrificed and their tibiae were collected for analysis of following bone characteristics: bone measurements (weight, length and thickness of the compact and spongy layers) and bone density (bone densitometry). A total of 540 birds were used in each experiment, divided into fully randomized blocks with a 3 x 2 factorial schemes, i. e., 3 amino acid profiles (methionine, lysine and threonine ­ 100%, 125% and 150% of NRC recommendations, 1994) and 2 calcium levels (75% and...
Tipo: Journal article Palavras-chave: Amino acid; Bone density; Broiler chickens; Calcium.
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200001
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Brain and hepatic Hsp70 protein levels in heat-acclimated broiler chickens during heat stress Rev. Bras. Ciênc. Avic.
Guerreiro,EN; Giachetto,PF; Givisiez,PEN; Ferro,JA; Ferro,MIT; Gabriel,JE; Furlan,RL; Macari,M.
In the present study we have investigated the effects of heat acclimation on brain and hepatic Hsp70 protein levels and body temperature of broiler chickens in response to gradual heat stress. Two groups of broilers were raised up to 47 days of age under distinct temperature conditions: thermoneutral (TN, according to bird age) or hot environmental (HS, 31-33°C). At 46 days of age, the birds reared at high ambient temperature were transferred to thermoneutrality conditions. After 18 h, these birds and the birds reared at thermoneutral temperature were submitted to gradual heat stress in a climatic chamber so that environment temperature was increased from 28 to 40ºC at a rate of 2ºC/h. Colonic temperature was measured using a thermometer sensor probe at...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acclimation; Broiler chickens; Heat shock protein; Heat stress.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000400002
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COMPARATIVE EVALUATION OF THE PROTECTIVE EFFICACY OF DIFFERENT VACCINATION PROGRAMS AGAINST A VIRULENT FIELD STRAIN OF THE NEWCASTLE DISEASE VIRUS IN BROILERS Rev. Bras. Ciênc. Avic.
Sarcheshmei,M; Dadras,H; Mosleh,N; Mehrabanpour,MJ.
ABSTRACT Despite the intensive vaccination programs used for controlling Newcastle disease (ND) in the Iranian poultry industry, outbreaks of ND have been reported in poultry farms. This study was conducted to evaluate the effectiveness of vaccines for the protection against ND infection and virus-shedding period of velogenic Newcastle disease virus (vNDV) field strain after different immunization schemes. Eight groups of commercial broiler chickens were used. Six groups were vaccinated with different vaccination programs using commercial live and inactivated ND vaccines. All groups, except for group 8, were challenged with a virulent field isolate (104EID50/bird) at 28 days of age. Clinical signs, mortality rate and gross lesions were investigated....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Newcastle disease virus; Vaccination program; Virus shedding period.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300363
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Comparison of feeding values among yellow corn, white Hegari sorghum and brown IS 8719 sorghum in broiler rations Thai Agricultural
1 table
Palavras-chave: Broiler chickens; Corn; Maize; Sorghum; Yellow corn; White hegari sorghum; Brown IS 8719; Feeding value; Rations; ข้าวโพด; ข้าวฟ่าง; ข้าวโพดเหลือง; พันธุ์เฮกการี่; คุณค่าทางอาหารสัตว์; ข้าวฟ่างสีน้ำตาล; สูตรอาหาร; ไก่กระทง.
Ano: 1974 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3808
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Concentration of collagen fibers in the musculature of broiler chickens fed with cupuacu seed by-product Arq. Bras. Med. Vet. Zootec.
Silveira,T.B.; Souza,S.F.; Medeiros,L.S.; Freitas,H.J.; Gracci,R.E.; Miglino,M.A.; Carvalho,Y.K..
ABSTRACT In this essay, we quantify the concentration of collagen fibers in broiler chickens exposed to increasing concentrations of cupuacu seed by-product. Collection of material was carried out in five chickens per treatment at 70 days old in the groups: control, 5% and 10% inclusion of cupuacu seed by-product. Fragments of Thoracic Pectoralis (PT) and Iliotibial lateralis (ITL) muscles were prepared for light and electronic microscopy. The amount of collagen fibers in the muscle groups was 1.08±0.61% in the PTC group; 6.24±2.58% in PT5% and 7.30±2.75% in PT10%. In the Iliotibial Lateralis groups, the results were 6.96±3.14% in the ITLC; 7.43±4.22% in the ITL5% and 8.66±2.35% in ITL10%. The amount of collagen fibers in the ITL5% and ITL10% groups showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Collagen; Theobroma grandiflorum.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300791
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Condronecrose bacteriana com osteomielite (BCO): um problema subestimado na avicultura de corte. Infoteca-e
PEIXOTO, J. de O.; IBELLI, A. M. G.; CANTAO, M. E.; LEDUR, M. C..
A Embrapa Suínos e Aves, em uma de suas linhas de pesquisa, vem desenvolvendo estudos em genômica com foco em problemas locomotores, tanto em aves como em suínos. Em aves, a variação genética normal de características de integridade óssea e os fatores genéticos associados à BCO estão sendo investigados.
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Problemas locomotores; Gênomica; Frango de corte; Melhoramento genético animal; Broiler chickens; Livestock breeding; Breeding and Genetic Improvement; Animal genetics.
Ano: 2015 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1031511
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Cryptosporidium spp. in bursa of Fabricius of broiler chickens from Uruguay Ciência Rural
Casanova,Susana; Verdes,José Manuel; Okada,Kosuke.
The presence of Cryptosporidium spp. was detected in broiler chickens of 32-40 days of age, colonizing the bursa of Fabricius. The histologic study with haematoxylin and eosin staining was done on specimens of trachea, complete intestinal tract and bursa. Samples of intestinal content were also studied using Kinyoun staining technique. All birds with signs of illness were positive to the presence of parasite, showing a hypertrophic bursa of Fabricius, filled with caseous content. The bursal epithelial cells were full of different developmental stages of Cryptosporidium spp. This note describing the presence of Cryptosporidium spp. in industrial flocks of broiler chickens, is the first report of this parasite in Uruguay
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cryptosporidium spp.; Broiler chickens; Bursa of Fabricius.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000100064
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Dietary levels of potassium for broiler chickens Rev. Bras. Ciênc. Avic.
Oliveira,JE; Albino,LFT; Rostagno,HS; Páez,LE; Carvalho,DCO.
Three experiments were conducted to determine the nutritional requirements of potassium (K) for male Ross broiler chickens, from 8 to 21, 22 to 42 and 43 to 53 days of age. The following parameters were evaluated: body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR). In each experiment, a completely randomized experimental design was used, with six treatments (K levels), and six, eight and eight numbers of replicates, and eight, five and four birds per pen, respectively. The experimental diets were basal diets deficient in K but supplemented with K carbonate to result in levels of 0.30, 0.44, 0.58, 0.72, 0.86 and 1.00% K. Estimated requirements for BWG were 0.628, 0.714 and 0.798% K, for the periods 8-21, 22-42 and 43-53 d, respectively.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Ion; Mineral; Potassium; Requirement; Weight gain.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100006
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Digestibility of feeds containing sorghum, with and without tannin, for broiler chickens submitted to three room temperatures Rev. Bras. Ciênc. Avic.
Garcia,RG; Mendes,AA; Sartori,JR; Paz,ICLA; Takahashi,SE; Pelícia,K; Komiyama,CM; Quinteiro,RR.
The traditional method of total excreta collection was applied, using 30 to 40 day old male Ross 308 broiler chickens. One hundred and eight broiler chickens were used, randomly assigned to a 3x3 factorial experimental design. The room temperatures were 14 C (cold), 25 °C (thermoneutral) and 32 °C (hot) and the three diets were 100% maize, 100% sorghum with tannin and 100% sorghum without tannin, with four replicates of each. The digestibility coefficients for the dry matter, crude protein, crude fibre, neutral detergent fibre, acid detergent fibre, ether extract, mineral matter and nitrogen-free extract were determined. It was observed that all the digestibility coefficients were higher in the hot chamber and lower in the cold chamber, and that these...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Digestibility; Sorghum; Tannin.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100007
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Does low-protein diet improve broiler performance under heat stress conditions? Rev. Bras. Ciênc. Avic.
Furlan,RL; Faria Filho,DE de; Rosa,PS; Macari,M.
Nutrition for broilers under high temperatures is extremely important for brazilian broiler chicken industry because the amounts of consumed nutrients and environmental temperature have great effects on bird performance and carcass quality. Among diet nutrients, protein has the highest heat increment; thus, during many years, diets with low protein level were recommended in order to reduce heat production in broiler chickens under heat stress. However, reports have shown that low-protein diets have negative effects on broiler performance when environmental temperature is high, because during heat stress, low food intake associated to a low diet protein induce amino acid deficiencies. Other studies have shown that broilers fed low-protein diets increase...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Crude protein; Heat stress; Heat increment; Heat production.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000200001
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Effect of deboning time on the quality of broiler breast meat (Pectoralis major) Rev. Bras. Ciênc. Avic.
Souza,PA; Kodawara,LM; Pelicano,ERL; Souza,HBA; Oba,A; Leonel,FR; Norkus,EA; Lima,TMA.
The present study evaluated the effect of different deboning times on the quality of broiler breast meat. Seventy-two broiler breasts were evaluated. They were distributed in a completely randomized experimental design, with six treatments, six repetitions and two birds per parcel. The treatments were denominated as follows: A - deboning immediately after chilling, B - deboning 1 h after chilling, C - deboning 2 h after chilling, D - deboning 3 h after chilling, E - deboning 4 h after chilling, and F - deboning 24 hours after chilling. Lowest pH values (p<0.05) were seen when deboning was performed 24 h after carcass chilling (pH=6.00) in comparison to deboning at 0 h (6.69) and 1 h (6.42) after chilling. R values were inversely proportional to pH...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Deboning time; Meat quality; R value; Shear force.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200010
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Effect of energy intake on performance and carcass composition of broiler chickens from two different genetic groups Rev. Bras. Ciênc. Avic.
Rosa,PS; Faria Filho,DE; Dahlke,F; Vieira,BS; Macari,M; Furlan,RL.
In order to evaluate the effect of energy intake and broiler genotype on performance, carcass yield, and fat deposition, 600 one-day-old male chicks from two different genetic groups (AgRoss 308 - commercial line and PCLC - Embrapa non-improved line) were fed diets with different metabolizable energy level (2950, 3200 and 3450 kcal/kg). A completely randomized experimental design in a 2X3 factorial arrangement with four replications of 25 birds per treatment was applied. In order to ensure different energy intake among treatments within each strain, feed intake was daily adjusted by pair-feeding schemes. AgRoss 308 broilers had better performance and carcass yield, and presented lower abdominal fat deposition rate. In both genetic groups, the highest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometric growth; Broiler chickens; Carcass composition; Energy intake; Genetic strains.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200007
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Effect of poultry viscera meal inclusion in broiler diets in different rearing periods on performance, carcass and parts yields Rev. Bras. Ciênc. Avic.
Cruz,VC; Ducatti,C; Araújo,PC; Sartori,JR; Piccinin,A.
The objective of the present study was to evaluate the effect of the dietary inclusion of poultry viscera meal (VM) on broiler performance and carcass, parts, and abdominal fat yields in broilers by replacing a diet containing VM with a strictly vegetable diet and vice-versa. A number of 720 one-day-old broiler chicks were randomly distributed in 6 groups: G1-basal diet (BD) - corn and soybean based meal, with no VM from 1 to 42 days of age, G2- 8% VM diet from 1 to 42 days, G3- BD from 1 to 21 and 8% VM diet from 22 to 42 days, G4- BD from 1 to 35 and 8% VM diet from 36 to 42 days, G5- 8% VM diet from 1 to 21 days and BD from 22 to 42 days, G6- 8% VM diet from 1 to 35 and BD from 36 to 42 days. Average body weight, weight gain, feed intake, feed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal byproducts; Broiler chickens; Carcass yield; Performance; Poultry viscera meal.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300006
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Effect of Suwan 1 corn, KU 257 sorghum and new plant protein from roselle seed meal in ration on production performance of broilers Thai Agricultural
Prateap Rachapaetayakom; Supaporn Isariyodom.
4 tables
Palavras-chave: Broiler chickens; Corn; Sorghum; Suwan 1; KU 257; Roselle seed meal; Proteins; Rations; Ingredients; Animal performance; Carcass quality; ข้าวโพด; ข้าวฟ่าง; พันธุ์สุวรรณ 1; พันธุ์เคยู 257; กากเมล็ดกระเจี๊ยบแดง; สูตรอาหาร; ไก่กระทง.
Ano: 1980 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4039
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Effects of 1.25-Dihydroxycholecalciferol and Hydroalcoholic Extract of Withania Coagulans Fruit on Bone Mineralization and Mechanical and Histological Properties of Male Broiler Chickens Rev. Bras. Ciênc. Avic.
Hosseini,SJ; Kermanshahi,H; Nassirimoghaddam,H; Nabipour,A; Mirakzeh,MT; Saleh,H; Kazemifard,M.
Abstract An experiment was conducted to investigate the effects of hydroalcoholic extract of Withania coagulans (WC) fruit and 1.25-dihydroxycholecalciferol (1.25-(OH)2 D3) on bone mineralization, mechanical and histological properties of male broiler chickens at 21 and 42 d of age. A total of six hundred male day-old Ross 308 broiler chickens were randomly distributed according to a completely randomized experimental design in a 2×3×2 factorial arrangement with 12 treatments of five replicates of 10 birds each. Treatments consisted of two basal diets (positive control with adequate Ca level and negative control with 30% less Ca), three levels of WC (0, 100, or 200 mg/kg diet), and two levels of 1.25-(OH)2 D3 (0 or 0.5 µg/kg diet). Birds were housed in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 1.25-dihydroxycholecalciferol; Withania coagulans; Bone; Broiler chickens.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100073
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EFFECTS OF DIETARY FERMENTED GARLIC ON THE GROWTH PERFORMANCE, RELATIVE ORGAN WEIGHTS, INTESTINAL MORPHOLOGY, CECAL MICROFLORA AND SERUM CHARACTERISTICS OF BROILER CHICKENS Rev. Bras. Ciênc. Avic.
Lee,KW; Lee,KC; Kim,GH; Kim,JH; Yeon,JS; Cho,SB; Chang,BJ; Kim,SK.
ABSTRACT The present study was conducted to evaluate the effects of feeding broilers with garlic fermented by Leuconostoc citreum SK2556. A total of 250 male broiler chicks was randomly housed into 25 floor pens. Five dietary treatments with five replicates of 10 chicks each (n=50 chicks/treatment). A corn and soybean meal based diet was used as the control diet (NC). The experimental diets were formulated by mixing the basal diet either with antibiotics (10 ppm; PC) or fermented garlic (FG) at the concentrations of 0.1% (FG1), 0.3% (FG3) or 0.5% (FG5) in diets. Daily weight gain, feed intake, and feed:gain ratio were not affected by any of the dietary treatments. Average daily gain on day 21 linearly increased (p= 0.024) with increasing FG levels. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chickens; Growth performance; Gut morphology; Leuconostoc citreum SK2556.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300511
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