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A Conjoint Analysis of the U.S. Broiler Complex Location Decision AgEcon
Harrison, R. Wes; Sambidi, Pramod R..
A national survey of broiler industry executives is conducted to analyze site-specific factors related to the broiler-complex location problem. Conjoint analysis is used to analyze the broiler complex location decision. Feed costs, community attitude toward the broiler industry, availability of geographically concentrated growers, unemployment rates, and wage rates were found to be the top five factors affecting broiler company location decisions. The quality of roads between feed mill and growers; electricity, heating, water, and sewage costs; and the number of potential growers in the region were also found to be important.
Tipo: Journal Article Palavras-chave: Broilers; Conjoint analysis; Location; Poultry industry; R12; O18.
Ano: 2004 URL: http://purl.umn.edu/43457
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Anticoccidial efficacy of drinking water soluble diclazuril in the control of Eimeria acervulina oocysts on experimentally-infected broiler chickens Arq. Bras. Med. Vet. Zootec.
Assis,R.C.L.; Cury,M.C.; Luns,F.D.; Assis,R.L..
The experiment was carried out with 150 Cobb broiler chickens divided into 3 groups with 50 birds each. The groups of infected chickens orally received 1ml of inoculum containing 3x103 Eimeria acervulina sporulated oocysts at 12 days of age. Group 1 was kept as a positive control with infected non-medicated birds, group 2 was medicated with diclazuril (1%) with a dose of 1mL/4 L of drinking water for 2 successive days, 5 days after infection, while group 3 was kept as negative control with non-infected and non-medicated birds. Oocysts count per gram of feces, score of macroscopic intestinal lesions and weight gain were evaluated. The group treated with diclazuril showed significant and satisfactory improvement in the assessment criteria when compared to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Eimeria acervulina; Broilers; Coccidiosis; Diclazuril.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000500016
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ASSESSMENT OF BENZOPHENANTHRIDINE AND PROTOPINE ALKALOIDS IN BROILER CHALLENGED AND NOT BY SALMONELLA HEIDELBERG Rev. Bras. Ciênc. Avic.
Previato do Amaral,PFG; Otutumi,LK; Rodrigues,GV; Lima,ET; Fernandes,JIM; Vendrame,A; Mezalira,TS; Suenaga,SS; Sestari,DAO; Cestari,IED; Martins,LA.
ABSTRACT Salmonellosis is a globally important zoonosis, and Salmonella Heidelberg is one of the most prevalent serovars in poultry production worldwide, as well as in food poisoning cases. Antimicrobial drugs were previously widely used to face health challenges in animal production; however, since their ban as performance enhancers, many alternative strategies have been proposed. One of these strategies is the use of plant extracts, such as those containing the alkaloids benzophenanthridine and protopine. These compounds have antimicrobial, anti-inflammatory, immunomodulation, and nutritional effects. The objective of the present study was to evaluate the effects of the supply of a product containing benzophenanthridine and protopine (Sangrovit(r)WS 100...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alkaloids; Broilers; Intestinal morphology; Performance; Sanguinarine.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300525
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ASYMMETRIC PRICE RELATIONSHIPS IN THE U.S. BROILER INDUSTRY AgEcon
Bernard, John C.; Willett, Lois Schertz.
This study presents a testing methodology to analyze potential price asymmetries among the farm, wholesale, and retail levels of the U.S. broiler industry. Lag length, direction of causality and power of the integrators in the industry have allowed the wholesale price to become the center, causal price in the market. Asymmetric price transmissions, however, are limited. While downward movements in the wholesale price are passed on more fully to growers than increases in the wholesale price, only consumers in the North Central region of the U.S. share a larger portion of wholesalers' price increases than price decreases.
Tipo: Journal Article Palavras-chave: Asymmetry; Broilers; Concentration; Granger causality; Price transmission; Demand and Price Analysis; Livestock Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/15125
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Bone densitometry and calcium serum levels in chickens treated with filtered or unfiltered water Rev. Bras. Ciênc. Avic.
Amoroso,L; Baraldi,ASM; Barreiro,FR; Pacheco,MR; Alva,JCR; Soares,NM; Pacheco,LG; Melaré,MC.
The aim of this study was to evaluate whether the drinking water of the School of Agricultural and Veterinary Sciences, UNESP, Jaboticabal, Brazil, affected bone mineral density and serum calcium levels of 14-, 21-, and 45-day-old broilers. Bone mineral density (BMD) of the tibiae was assessed using optical densitometry radiographic technique and serum calcium levels. Tibial BMD increased as broilers aged, and achieved its peak at 45 days of age. It was higher in the distal epiphysis of the birds that ingested filtered water (p<0.05) compared with those supplied with unfiltered water. Therefore, it is concluded that filtered water promoted better bone quality in relative to those ingested unfiltered water.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone mineral density; Broilers; Serum calcium levels; Tibia; Water quality.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400013
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Broiler chicken ileal apparent digestibility of calcium and phosphorus from microalgae spirulina maxima. Repositório Alice
TAVERNARI, F. de C.; SUREK, D.; ROZA, L.; SILVA, M. L. B. da; ALBINO, L..
2016
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Broilers; Microalgae; Digestibility; Calcium; Phosphorus.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1045621
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Broiler Farms' Organization, Management, and Performance AgEcon
Perry, Janet E.; Banker, David E.; Green, Robert C..
This study provides a comprehensive view of the organization, management, and financial performance of U.S. broiler farms. Using data from USDA's Agricultural Resource Management Study (ARMS, formerly known as the Farm Costs and Returns Survey), we examine farm size, financial structure, household income, management practices, and spousal participation in decision-making. We compare broiler operations with other farming enterprises and their earnings with that of the average U.S. household. Because most of the 7 billion broilers produced in the United States in 1995 were raised under contract, we also explore the use of contracts and the effects of contracting on the broiler sector.
Tipo: Report Palavras-chave: Contracting; Broilers; Poultry; Farm characteristics; Farm income; Farm operator characteristics; Risk management strategies; Livestock Production/Industries.
Ano: 1999 URL: http://purl.umn.edu/33739
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Carcass and cut yields and meat qualitative traits of broilers fed diets containing probiotics and prebiotics Rev. Bras. Ciênc. Avic.
Pelicano,ERL; Souza,PA; Souza,HBA; Oba,A; Boiago,MM; Zeola,NMBL; Scatolini,AM; Bertanha,VA; Lima,TMA.
This study evaluated the use of different probiotics, prebiotics and symbiotics on the quality of carcasses and meat of broiler chickens. One hundred and eight day-old Cobb male broilers were used (n=108) in a completely randomized design according to a 3x3 factorial, with 3 probiotics in the diet (no probiotics, probiotics 1, probiotics 2) and 3 prebiotics in the diet (no prebiotics, prebiotics 1, prebiotics 2). There were nine treatments with 4 replicates and 3 birds per replicate. The results showed that the carcass and cut yields, color (L* - lightness, a* - redness, and b* - yellowness), pH, cooking losses, shearing force and sensory analysis were not affected by the use of different growth promoters at 42 days of age. It was concluded that growth...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Carcass yield; Cut yield; Meat quality; Prebiotics; Probiotics.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000300006
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Chicken meat quality as a function of fasting period and water spray Rev. Bras. Ciênc. Avic.
Komiyama,CM; Mendes,AA; Takahashi,SE; Moreira,J; Garcia,RG; Sanfelice,C; Borba,HS; Leonel,FR; Almeida Paz,ICL; Balog,A.
This study aimed at evaluating the effect of different fasting periods and water spray during lairage on the quality of chicken meat. A number of 300 male Ross broilers were reared up to 42 days of age, and submitted to four pre-slaughter fasting periods (4, 8, 12, and 16 hours) and sprayed with water or not during lairage. Deboned breast meat was submitted to the following analysis: pH, color, drip loss, water retention capacity, cooking loss, and shear force. There was a significant effect (p < 0.05) of fasting period on meat luminosity was significantly different, with the highest value obtained for 4-hour fasting, whereas no difference was found among the other fasting periods. Meat pH values were different among fasting periods when birds received...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Color; Meat; PH.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300008
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Committee neural network and weighted multiple regression to predict the energetic values of poultry feedstuffs PAB
Mariano,Flávia Cristina Martins Queiroz; Lima,Renato Ribeiro de; Alvarenga,Renata Ribeiro; Rodrigues,Paulo Borges.
Abstract: The objective of this work was to compare the committee neural network (CNN) and weighted multiple linear regression (WMLR) models, in order to estimate the nitrogen-corrected apparent metabolizable energy (AMEn) of poultry feedstuffs. The prediction equation was adjusted by using a WMLR model and the meta-analysis principle. The models were compared by considering the correct prediction percentages, based on the classic prediction intervals and on the highest-probability density intervals, and by using a comparison test for proportions. The accuracy of the models was evaluated based on the values of the mean squared error, coefficient of determination, mean absolute deviation, mean absolute percentage error, and bias. Data from metabolic trials...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Highest-probability density interval; Meta-analysis; Metabolizable energy; Percentage of success.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2020000103600
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Comparative Study of Three Different ELISA to Measure the Antibodies Against Infectious Bronchitis Virus in Vaccinated and Unvaccinated Broilers Rev. Bras. Ciênc. Avic.
Cardoso,TC; Oliveira,C; Da-Silva,SEL; Ferreira,HL; Pinto,AA.
Broilers were spray-vaccinated (n=150) with H120 serotype at one-day-old, challenged after 28 days with M41 IBV serotype and after bled at day 28, 34 and 46 after challenged. The respective sera were tested by the indirect ELISA (I-ELISA), sandwich ELISA (S-ELISA), liquid phase blocking ELISA (LPB-ELISA) and the standard serum neutralization test (SNT). For this purpose, a total of 300 sera samples, 150 from non vaccinated and 150 from vaccinated broilers were titrated by all the serological methods and the correlation coefficients were determined. The correlation values (r) between LPB-ELISA x SNT, S-ELISA x SNT, I-ELISA x SNT found werer = 0.98, r = 0.79, and r = 0.74, respectively. Nevertheless, the r between LPB-ELISA x S-ELISA, LPB-ELISA x I-ELISA and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: ELISA; Post vaccinal response; Infectious bronchitis virus; Broilers.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100010
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Compensatory water consumption of broilers submitted to water restriction from 1 to 21 days of age Rev. Bras. Ciênc. Avic.
Viola,TH; Ribeiro,AML; Penz Jr.,AM.
A hundred and fifty male Ross 308 broilers were submitted to water restriction (WR) in different levels (0 to 40%) until 21 days of age. The birds received water ad libitum from 22 to 28 days of age and the compensatory consumption of water (CConW) was calculated as the difference in water intake between birds submitted and not submitted to WR. All WR groups showed a compensatory consumption of water, mainly during the first days of the ad libitum period. The water intake in such groups decreased as the birds adapted to the new condition. Higher water intake was observed in birds with 30 and 40% WR than in birds with 10% WR. Furthermore, chickens showed an unusual drinking and feeding behavior during the restriction period.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Compensatory water consumption; Water restriction.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000400008
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Crude protein level of pre-starter diets and nutritive solution for broilers R. Bras. Zootec.
Toledo,Rodrigo Santana; Rostagno,Horacio Santiago; Albino,Luiz Fernando Teixeira; Vargas Junior,José Geraldo de; Carvalho,Débora Cristine de Oliveira.
The objective of the present study was to evaluate the effect of dietary crude protein (CP) levels and the use of a nutritive solution via drinking water on the performance of pre-starter broilers. A total of 1,224 male Avian Farm chicks, from one to 40 days of age were used. Birds were distributed in a completely randomized experimental design with a 3 × 2 × 2 factorial arrangement, consisting of three initial body weights (low: 41 g, standard: 45 g and high: 49 g; two crude protein levels at the pre-starter phase (22 and 25% CP),with or without the addition of a nutritive solution, whose nutritional level was similar to the 25% CP pre-starter diet, at a concentration of 5% of the drinking water. Each treatment included six replicates and 17 chicks per...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Chicks; Nutritional requirements; Performance; Starting phase.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001000020
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Detoxified Castor Seed Cake for Broilers Rev. Bras. Ciênc. Avic.
Faria Filho,DE; Dias,AN; Carneiro,WA; Bueno,CFD; Matos Júnior,JB; Veloso,ALC; Rodrigues,PA.
Abstract The objective of the present study was to evaluate the effect of the dietary detoxified castor seed cake (DCC) inclusion on broiler performance and carcass traits. Two hundred and fifty Cobb-500(r) broilers were distributed according to a completely randomized experimental design consisting of five treatments (dietary inclusion of 0.0, 2.5, 5.0, 7.5, and 10.0% DCC) with five replicates of 10 birds each (five males and five females). Feed intake (FI), body weight gain (WG), and feed conversion ratio (FCR) were evaluated from one to 40 days of age. Carcass yield and the yields of the breast, leg (drumstick+thighs), and wings were determined when broilers were 40 days old. Live performance parameters were influenced by DCC dietary inclusion, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Performance; Carcass yield; Ricinuscommunis L.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100069
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Diet formulation techniques and lysine requirements of 1- to 22-day-old broilers Rev. Bras. Ciênc. Avic.
Siqueira,JC; Sakomura,NK; Dourado,LRB; Ezequiel,JMB; Barbosa,NAA; Fernandes,JBK.
Two experiments were carried out to compare two techniques (amino acid supplementation and dilution) for formulating experimental diets for pre-starter (1 to 8 days) and starter (8 to 22 days) broiler chicks and to estimate digestible lysine requirements using the dose-response method. In each experiment, 1,200 male Cobb 500 chickens were randomly distributed according to a 5x2 factorial arrangement (lysine level x formulation technique) with six replicates of 20 birds each. For the supplemented diet, a basal diet was formulated to meet the nutritional requirements, then L-lysine HCl was added to achieve digestible lysine levels of 0.975, 1.082, 1.189, 1.296 and 1.403% in the pre-starter diets and 0.840, 0.932, 1.024, 1.116 and 1.208% in the starter diets....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Diet formulation; Dose-response; Lysine; Performance.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200008
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Dietary Supplementation of Different Levels of Phytogenic Feed Additive in Broiler Diets: The Dynamics of Growth Performance, Caecal Microbiota, and Intestinal Morphometry Rev. Bras. Ciênc. Avic.
Ahsan,U; Kuter,E; Raza,I; Köksal,BH; Cengiz,Ö; Yıldız,M; Kızanlık,PK; Kaya,M; Tatlı,O; Sevim,Ö.
ABSTRACT The present study was conducted to investigate the influence of different levels of dietary phytogenic feed additive (PFA) on growth performance, caecal microbiota, and intestinal morphology of broilers. A total of 480 Ross-308 one-day-old male broilers chicks (body weight 43±3 g) were randomly assigned to 32 replicate pens of four experimental groups, each experimental group consisting of 8 replicates (each replicate pen consisting of 15 chicks). A basal diet was formulated based on corn and soybean meal that was fed to the control group. Other dietary treatments received a commercial PFA at 100 mg/kg (PFA100), 125 mg/kg (PFA125), and 150 mg/kg (PFA150). Body weight gain, feed intake, and feed conversion rate of broilers were recorded on 1-21,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Intestinal microbiota; Intestinal morphology; Performance; Phytogenic feed additive.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400737
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Different criteria for feed formulation based on digestible amino acids for broilers Rev. Bras. Ciênc. Avic.
Araújo,LF; Junqueira,OM; Araújo,CSS; Laurentiz,AC; Assuena,V; Gomes,GA.
An experiment was carried out to evaluate different criteria in feed formulation based on digestible amino acids for broilers during the grower phase. Diets were formulated according to the recommendations for digestible methionine, methionine + cysteine, lysine, and threonine. A total number of six hundred Cobb 500 male day-old chicks were distributed in a completely randomized experimental design, with three formulation criteria supplying the recommendations established by Baker &amp; Chung (1992), Degussa (1997), and Rostagno et al. (2000), with 4 replicates of 50 birds each. No significant differences were observed for weight gain and feed intake. However, feed conversion ratio improved when birds were fed the diets containing the profiles...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Carcass yield; Digestible amino acids; Performance.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000400005
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Different criteria of feed formulation for broilers aged 43 to 49 days Rev. Bras. Ciênc. Avic.
Araújo,LF; Junqueira,OM; Araújo,CSS; Faria,DE; Andreotti,MO.
An experiment was carried out to evaluate different formulated feeds for broilers from 43 to 49 days of age. Six hundred male Cobb broilers were distributed in a completely at random experimental design with 3 treatments (3 different criteria of feed formulation) and 4 repetitions per treatment, with 50 birds each. Diets were formulated with different criteria of digestible amino acid inclusion (methionine, methionine+cystine, lysine and threonine), according to the profiles recommended by Baker and Chung (1992), Degussa (1997) and Rostagno (2000) Live performance and carcass yield were evaluated in birds fed the different diets from 43 to 49 days of age). The profile established by Degussa (1997) resulted in best live performance. All profiles supplied...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Carcass yield; Digestible amino acids; Performance.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100008
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ECONOMIC ANALYSIS OF BROILER PRODUCTION AT MIANGO PLATEAU STATE, NIGERIA AgEcon
Kalla, D.J.U.; Barrier, G.; Haruna, U.; Abubakar, Mukhtar Aishatu; Hamidu, B.M.; Murtala, N..
This paper evaluate the economics of broiler production at Miango, Plateau State, Nigeria using a – 9 years record (1992 – 2000). During the period, 76 batches of broilers were reared to point of slaughter. The results shows that the enterprise incurred an average total variable cost of N620,6333.31 out of which feeding cost, day old chicks (stock) and mortality cost represents 58.13%, 19.13% and of 9.64% of the total cost of production, respectively. Total revenue within the period was estimated to be N763,969.44 which was mainly generated from the sales of broiler birds. The gross margin was found to be N143,334.13 with N0.23 as the returns per naira invested in the enterprise. Thus the broiler production is a profitable venture in the study area.
Tipo: Report Palavras-chave: Broilers; Income; Investment & Profitability; Livestock Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/54388
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Efecto de arginina y vitamina E en la respuesta inmunitaria de pollos de engorda vacunados e infectados experimentalmente con Eimeria spp. Colegio de Postgraduados
Pérez Carbajal, Carlos.
Este experimento se llevó a cabo para analizar los efectos inmunomodulatorios de arginina (ARG) y vitamina E (VE) en pollos de engorda infectados con coccidias. Un total de 300 pollos, vacunados contra coccidiosis (Coccivac®-B) al primer día de edad, fueron divididos en seis grupos con la finalidad de evaluar tres niveles de ARG en el alimento (NARG, 1.44%; MARG, 1.74%; HARG, 2.04%) y dos niveles de VE (40 u 80 UI / kg de alimento, VE40 y VE80, respectivamente) en un diseño factorial 3 x 2. Los pollos se criaron en piso y se les proporcionó agua y una dieta a base de maíz y pasta de soya ad libitum. Al d 14, todos los pollos se infectaron oralmente con un cultivo de diferentes especies del género Eimeria (E. acervulina, E. maxima y E. tenella). A los 9,...
Palavras-chave: Pollos de engorda; Arginina; Vitamina E; Respuesta inmunitaria; Broilers; Arginine; Vitamin E; Immune response; Maestría; Ganadería.
Ano: 2010 URL: http://hdl.handle.net/10521/63
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