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A collaborative research initiative for the environmental management of ostrich production Rev. Bras. Ciênc. Avic.
Rodrigues,GS; Buschinelli,CC de A; Rodrigues,IA; Medeiros,CB.
A collaborative research initiative was proposed by the Federation of Cooperatives of Ostrich Producers of Southeastern Brazil (FECOAVESTRUZ-Sudeste) and Embrapa Environment to training technicians and to develop environmental management procedures in order to establish criteria for the definition of 'Terms of Reference' for sustainable ostrich production for FECOAVESTRUZ associates. Eight farms with different scales of operation were selected by FECOAVESTRUZ-Sudeste for the application of 'integrated environmental indicator systems', designed to develop Environmental Management Reports and to propose best management practices in the farms. The results showed that, in general, indicators relative to Use of inputs and resources, Use of veterinary inputs and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: APOIA-NovoRural; Eco-cert.Rural; Environmental impact assessment; Ostrich; Scientific cooperation; Sustainability indicators.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000400003
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A hybrid model of uniform design and artificial neural network for the optimization of dietary metabolizable energy, digestible lysine, and methionine in quail chicks Rev. Bras. Ciênc. Avic.
Mehri,M; Ghazaghi,M.
A uniform design (UD) was used to construct models to explain the growth response of Japanese quails to dietary metabolizable energy (ME), and digestible methionine (dMet) and lysine (dLys) under tropical condition. In total, 100 floor pens with seven birds each were fed 25 UD different diets containing 25 ME (2808-3092 kcal/kg), dMet (0.31-0.49% of diet), and dLys (0.91-1.39% of diet) levels from 7 to 14 d of age. A platform of artificial neural network based on UD (ANN-UD) was generated to describe the growth response of the birds to dietary inputs using random search. Artificial neural networks of body weight gain (BWG) and feed conversion ratio (FCR) were optimized using random search algorithm. The optimization the ANN-UD results showed that maximum...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Quail chick; Nutritional requirement; Uniform design; Neural network.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300013
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A morphometric method of sexing white layer eggs Rev. Bras. Ciênc. Avic.
Yilmaz-Dikmen,B; Dikmen,S.
The present study was carried out to determine the sex of the fertilized white layer eggs with using morphological measurements. A total of 300 Super Nick White Layer (54 wks of age) eggs were incubated and sexed in the end of incubation period. Before incubation egg length, width and weight were measured. The egg volume and shape index were estimated with using these measurements for each egg. The effect of egg weight and replicate number was not significant on the sex of the hatching chick (p &gt; 0.05). The effects of egg shape index (p = 0.001), egg length (p = 0.0018), egg width (p < 0.01) and volume (p = 0.004) of the egg had significant effect on the sex of hatching chick. According to the results of the current study, morphological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Morphometric measurements; Pre-incubation; Sexing; Layer.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300006
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A Novel Polymorphism of VLDLR Signal Peptide Coding Region and Its Association with Growth and Abdominal Fat Traits of Gaoyou Domestic Ducks Rev. Bras. Ciênc. Avic.
Ming-liang,C; Cong,W; Xuan,D; Lu,L; Tang-jie,Z.
ABSTRACT The VLDLR gene plays important roles in the growth and adiposity in humans and mice. The purpose of this study was to investigate the relationship between VLDLR gene genetic polymorphisms and growth and abdominal fat traits of the Gaoyou domestic duck. A total of 267 Gaoyou ducks were employed for testing. A 18bp deletion was identified in VLDLR signal peptide coding region. The results of c2 test suggested that the genotype frequencies of VLDLR signal peptide coding region were not in Hardy-Weinberg equilibrium. Least squares analysis showed that body weight (BW) of -18bp/-18bp genotype ducks was significantly higher than those of other genotypes from six (BW6) (p<0.05) to ten weeks of age (BW10) (p<0.01). The association analysis was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polymorphism; VLDLR; Abdominal fat trait; Growth; Duck.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400577
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A Review of Approaches Targeting the Replacement of Coccidiostat Application in Poultry Production Rev. Bras. Ciênc. Avic.
Barbour,EK; Ayyash,DB; Iyer,A; Harakeh,S; Kumosani,T.
ABSTRACT The classical and the most commonly used approach for the prevention of coccidiosis in chickens is the incorporation of synthetic coccidiostats into their feed during the first weeks of their life. This approach has been challenged by consumers, objecting against residual antimicrobials and drug resistant microorganisms that may contaminate poultry products. Moreover, the coccidiostat application approach has been challenged in the last decade by the emerging regulations in the developed world, targeting the cessation of such a practice. The pressures from the consumers as well as from regulation agencies resulted in a great need for alternative methods to reduce, or completely replace the use of coccidiostats in modern chicken production. This...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coccidiostat replacement; New approaches.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400405
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Ação Isolada ou Combinada de Ácidos Orgânicos e Promotor de Crescimento em Rações de Frangos de Corte Rev. Bras. Ciênc. Avic.
Garcia,RG; Ariki,J; Moraes,VMB; Kronka,SN; Borges,SA; Murata,LS; Campos,VA.
O experimento teve como objetivo verificar a ação da apramicina (10 ppm) e dos ácidos fórmico + propiônico (0,0; 0,1 e 0,2%) no desempenho de frangos de corte sexados. A mistura dos ácidos orgânicos foi de 1:1. O delineamento foi inteiramente casualizado, em esquema fatorial 2 x 3 x 2 (apramicina x ácidos orgânicos x sexos), com 4 repetições de 45 aves por parcela, totalizando 2.160 pintos Cobb de 1 dia. As aves receberam ração à vontade. Na fase inicial, a adição da apramicina (10 ppm) e 0,1% dos ácidos orgânicos, isoladamente, melhorou o ganho de peso das aves. A adição conjunta dos produtos não promoveu ganho acumulado. Na presença da apramicina, a adição dos ácidos orgânicos piorou a conversão alimentar. Nas fases final e total, os dados de desempenho...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ácido propiônico; Ácido fórmico; Apramicina; Frangos de corte; Promotor de crescimento.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000200004
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Accuracy of Nonlinear Formulation of Broiler Diets: Maximizing Profits Rev. Bras. Ciênc. Avic.
Gonçalves,CA; de Almeida,MA; Faria-Júnior,MJA; Pinto,MF; Garcia-Neto,M.
Nutritionists need to make commercial decisions about the optimal nutrient content broiler feeds. In order to demonstrate that broiler prices may influence dietary nutrient density, this study developed quadratic feed intake and weight gain equations, according to broiler sex and feeding phase, to be applied in a nonlinear feed formulation model. Four hundred and eighty Cobb broilers were allotted to a completely randomized experimental with six treatments, each with four replicates of 10 birds each, from 1 to 56 days old. Treatments consisted of diets containing 2800, 2900, 3000, 3100, 3200, or 3300 kcal metabolizable energy (ME)/kg and constant nutrient to ME ratio. A nonlinear version of the PPFR feed formulation software (http://www.fmva.unesp.br/ppfr)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy; Excel; Mathematical modeling; Nutrition; Response surface.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200173
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Action of Antimicrobial Copper on Bacteria and Fungi Isolated from Commercial Poultry Hatcheries Rev. Bras. Ciênc. Avic.
Depner,RFR; Pontin,KP; Depner,RA; Flores Neto,A; Lucca,V; Lovato,M.
ABSTRACT Since 2008, when the US Environmental Protection Agency (EPA) registered copper and its alloys as an antimicrobial agent for contact surfaces, research has demonstrated their antimicrobial activity. The aim of this study was to evaluate the efficacy of antimicrobial copper against bacteria and fungi isolated from commercial poultry hatcheries in order to develop a microbiological control alternative in these environments. Samples were collected from the surfaces of hatcher baskets from two hatcheries. Mesophilic microorganisms and fungi/yeasts were isolated and standardized in concentration of 105 cells/mL. Four copper plates and four stainless steel plates were completely immersed for one minute in bacteria and fungi/yeasts solutions and left to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial copper; Hatchery; Stainless steel; Copper surfaces.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600095
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Activities and Ergonomics of Workers in Broiler Hatcheries Rev. Bras. Ciênc. Avic.
Carvalho,CCS; Souza,C de F; Tinôco,I de FF; Santos,LV; Minette,LJ; Silva,EP da.
The objective this study was to assess ergonomic factors, posture and biomechanics of workers of a broiler egg hatchery. The analysis of ergonomic factors was based on physical work load, thermal environment, and exposure to light and noise. The posture of workers was analyzed using photographic records which were evaluated by the software program OWAS (Ovako Working Posture Analysing System). A biomechanics analysis was also performed based on the photographs taken of the employee at various angles, which were used as inputs to the Michigan two-dimensional biomechanical model software program. The results show that certain activities can be considered unhealthy due to the exposure of employees to physical and thermal overload. The continuous noise levels...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chicken production; Ergonomics; Egg hatching; Workplace safety.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200123
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ACTIVITY OF SOME BRAZILIAN ISOLATES OF ENTOMOPATHOGENIC FUNGI AGAINST THE POULTRY RED MITE DERMANYSSUS GALLINAE DE GEER (ACARI: DERMANYSSIDAE) Rev. Bras. Ciênc. Avic.
Kasburg,CR; Alves,LFA; Oliveira,DGP; Rohde,C.
ABSTRACT Poultry red mite Dermanyssus gallinae is a cosmopolitan and hematophagous species commonly found in layer houses around the world. Poultry mite infestations may cause anemia, stress, low body weight and egg production, and mortality. Mite control is typically based on chemical products, but they are not effective and leave residues in eggs; therefore, alternative control methods, such as entomopathogenic fungi, need to researched. This study aimed at evaluating, in the laboratory, the activity of Brazilian isolates of entomopathogenic fungi against D. gallinae. The mites were collected from a commercial layer house and were sprayed with conidial suspensions (1 × 108 conidia/mL) of five isolates of Beauveria bassiana and Metarhizium anisopliae. All...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hematophagous mites; Microbial control; Ectoparasites; Laying hens.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300457
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Adaptação de linhagens de galinhas para corte ao sistema de criação semi-intensivo Rev. Bras. Ciênc. Avic.
Silva,MAN; Hellmeister Filho,P; Rosário,MF; Martins,E; Coelho,AAD; Savino,VJM; Silva,IJO; Menten,JFM.
Aves de quatro linhagens de galinhas para corte foram criadas no sistema semi-intensivo, em 16 boxes, sendo 4 boxes por linhagens, com 4,5 m² de área interna (abrigo) e 35 m² de área de pastejo, com o objetivo de analisar a adaptação dessas linhagens a esse sistema de criação, através de parâmetros ambientais e comportamentais. O período experimental desenvolveu-se entre 35 e 75 dias de idade, durante o qual foram coletados dados relativos à quantidade de aves presentes no pasto, temperatura e umidade relativa nos boxes e no pasto e porcentagem de sombra no pasto. Os parâmetros ambientais monitorados influenciaram o comportamento das aves. A análise bioclimática e a observação do comportamento permitiram diferenciar as linhagens estudadas no que diz...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adaptação; Bem-estar; Comportamento; Sistema semi-intensivo.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000300006
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Adding value to the meat of spent laying hens manufacturing sausages with a healthy appeal Rev. Bras. Ciênc. Avic.
Souza,KMR de; Araujo,RB; Santos,AL dos; Rodrigues,CEC; Faria,DE de; Trindade,MA.
The aim of this study was to evaluate the viability of the use of spent laying hens' meat in the manufacturing of mortadella-type sausages with healthy appeal by using vegetable oil instead of animal fat. 120 Hy-line® layer hens were distributed in a completely randomized design into two treatments of six replicates with ten birds each. The treatments were birds from light Hy-line® W36 and semi-heavy Hy-line® Brown lines. Cold carcass, wing, breast and leg fillets yields were determined. Dry matter, protein, and lipid contents were determined in breast and leg fillets. The breast and legg fillets of three replicates per treatment were used to manufacture mortadella. After processing, sausages were evaluated for proximal composition, objective color,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Color; Microbiology testing; Sensory evaluation; Soybean oil; Spent layers.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000100009
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Addition of Amylase from Aspergillus Awamori to the Diet of Broiler Chickens Rev. Bras. Ciênc. Avic.
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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Advances and Perspectives of the use of the entomopathogenic fungi beauveria bassiana and metarhizium anisopliae for the control of arthropod pests in poultry production Rev. Bras. Ciênc. Avic.
Oliveira,DGP; Alves,LFA; Sosa-Gómez,DR.
Global poultry production is plagued by a wide variety of arthropods. The problems associated with their chemical control have led to an increasing search for control alternatives, and entomopathogenic fungi seem to be a promising strategy. Despite the large number of insects and mites considered as important pests in animal production, studies on the use of entomopathogenic fungi for their control are still scarce compared with agricultural pests, particularly in Brazil. This article reviews some damages and control aspects of the main arthropod pests that affect Brazilian poultry production, including house flies, lesser mealworms, and feather mites, by the use of the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae. Studies published...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal production; Microbial control Musca domestica Alphitobius diaperinus Dermanyssus gallinae.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000100001
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Aggressive behavior in the genus Gallus sp Rev. Bras. Ciênc. Avic.
Queiroz,SA; Cromberg,VU.
The intensification of the production system in the poultry industry and the vertical integration of the poultry agribusiness have brought profound changes in the physical and social environment of domestic fowls in comparison to their ancestors and have modified the expression of aggression and submission. The present review has covered the studies focusing on the different aspects linked to aggressiveness in the genus Gallus. The evaluated studies have shown that aggressiveness and subordination are complex behavioral expressions that involve genetic differences between breeds, strains and individuals, and differences in the cerebral development during growth, in the hormonal metabolism, in the rearing conditions of individuals, including feed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aggressiveness; Behavior; Fighting birds; Gallus sp.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100001
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Albumen foam stability and s-ovalbumin contents in eggs coated with whey protein concentrate Rev. Bras. Ciênc. Avic.
Alleoni,ACC; Antunes,AJ.
Food products such as breads, cakes, crackers, meringues, ice creams and several bakery items depend on air incorporation to maintain their texture and structure during or after processing. Proteins are utilized in the food industry since they improve texture attributes through their ability to encapsulate and retain air. The objectives of this work were to quantify s-ovalbumin contents in albumen and to determine alterations in egg white foam stability in fresh eggs, and in eggs coated and non-coated with a whey protein-based concentrate film (WPC), stored at 25°C for 28 days. The volume of drained liquid was higher in non-coated eggs than in coated eggs stored at 25°C at all storage periods. The difference on the third day of storage was in the order of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Albumen foam; Albumen proteins; S-ovalbumin; Protein coating.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000200006
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Alimentação de Codornas com Milho Moído e Ração de Postura no Período Pós-jejum Durante a Muda Forçada e Seus Efeitos Sobre o Desempenho Rev. Bras. Ciênc. Avic.
Garcia,EA; Mendes,AA; Pizzolante,CC; Veiga,N; Mattos,TK.
O experimento foi realizado com o objetivo de avaliar o desempenho de codornas poedeiras alimentadas por diferentes períodos com milho moído ou ração de postura durante sete dias após três dias de jejum, método de muda utilizado. Após esse período, as aves foram alimentadas com ração de postura durante as 20 semanas do período experimental. Utilizou-se um delineamento inteiramente ao acaso com três tratamentos (ração de postura por sete dias, ração de postura por três dias e milho moído por quatro dias e milho moído por sete dias), e quatro repetições de 24 aves por parcela. Os resultados mostraram que aves alimentadas apenas com ração de postura nos sete primeiros dias após o jejum apresentaram maior produção de ovos nas seis primeiras semanas do período...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Codornas; Muda forçada; Produção de ovos.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200004
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Alterações Morfólogicas de Codornas Poedeiras Submetidas a Muda Forçada Rev. Bras. Ciênc. Avic.
Garcia,EA; Mendes,AA; Pizzolante,CC; Veiga,N.
Objetivou-se avaliar as alterações físicas, produção de ovos e mortalidade de codornas poedeiras submetidas a muda forçada, durante um período de jejum. Utilizou-se um delineamento inteiramente ao acaso, com quatro tratamentos (0, 1, 2, e 3) dias de jejum, com três repetições de 36 aves por parcela. No início e ao final do período de jejum 2 aves por parcela foram abatidas, pesadas individualmente e sacrificadas para retirada e avaliação do ovário, oviduto, e fígado. Os resultados mostraram que no período de jejum de três dias houve uma redução de 25,64% no peso vivo, a produção de ovos caiu a 2,81% e a mortalidade foi de 4,60%.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Codornas; Jejum; Muda forçada; Produção de ovos.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000300009
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Alterações Morfológicas e Desempenho de Cordornas Poedeiras Tratadas com Diferentes Programas de Alimentação no Período de Repouso, da Muda Forçada Rev. Bras. Ciênc. Avic.
Garcia,ES; Mendes,AA; Pizzolante,CC; Veiga,N.
O experimento objetivou avaliar as alterações físicas, produção de ovos e mortalidade de codornas poedeiras alimentadas por diferentes períodos com milho moído após muda forçada. Utilizou-se um delineamento inteiramente ao acaso, com três tratamentos (0, 4 e 7) dias de alimentação com milho moído e quatro repetições de 30 aves por parcela para análise do peso vivo e mortalidade e duas aves por parcela para análise das características físicas. Os resultados mostraram involução do aparelho reprodutivo até o quarto dia após muda forçada. Após sete dias, as aves alimentadas com ração de produção atingiram o peso que possuíam antes da muda forçada, e aos onze dias, as aves alimentadas com milho moído por sete dias não haviam ainda recuperado o peso de aparelho...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Codornas; Muda forçada; Produção de ovos; Programa de alimentação.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000300010
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Alternative calcium source effects on commercial egg production and quality Rev. Bras. Ciênc. Avic.
Pelícia,K; Garcia,EA; Scherer,MRS; Móri,C; Dalanezi,JA; Faitarone,ABG; Molino,AB; Berto,DA.
This study aimed at verifying the possibility of replacing calcitic limestone by marine calcium in the diet of layers. A total number of 321 Hi-sex hens, with 40 weeks of age at the beginning of the experiment, was used. A completely randomized experimental design was applied, with 5 treatments (0, 15, 30, 45, and 60 % of calcitic limestone replacement by marine calcium source) and eight replicates of eight birds each. Treatments significantly affected specific gravity (p<0.05), with the inclusion of 60% marine calcium (T5) presenting the worst result as compared to T1, which included only calcitic limestone as calcium source. It was concluded that marine calcium can replace up to 45% of calcitic limestone with no effects on performance or egg quality.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative calcium source; Eggshell quality; Limestone replacement; Marine algae; Marine calcium.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200005
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