Desempenho e características de carcaça de três genótipos comerciais de frangos de corte alimentados com diferentes dietas

Silva, M.T.P.; Veloso, R. C.; Pires, Aldrin Vieira; Filho, R. A. Torres; Pinheiro, Sandra Regina Freitas; Winkelstroter, Larissa Kretli; Barros, F.J.M.; Senna, J.A.B.

doi:10.1590/1678-4162-8241

Cited by 6 publications

(6 citation statements)

References 12 publications

(5 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Consequently, the use of DBR provided better WG, with similar FC, among all treatments studied (Table 2). The values found for FC are in agreement with those found by Silva (2013), who, in a study evaluating the productive potential of the Cobb lineage, observed 1,710 kg of feed per kg of chicken, for birds at 42 days of age. This result indicates that the inclusion of DBR, which despite having a high fiber content (NDF and ADF), did not represent a limiting role for the development of the birds, having little interference with the nutritional value of the diet.…”

Section: Resultssupporting

confidence: 90%

Dry brewery residue in broiler chickens feed

Parpinelli

Cella

Savaris

et al. 2018

SCA

View full text Add to dashboard Cite

The residual from the food industry has the potential to replace the traditional ingredients used in animal feed, and the dry brewery residue (DBR) may be an alternative for this purpose. This study aimed to evaluate the use of DBR in the diets of broiler from 22 to 42 days of age. Five hundred and forty-six male broilers were used, with an initial average weight of 865 ± 8 g. The animals were distributed in a completely randomized design, with six levels of DBR inclusion (0, 2, 4, 6, 8, 10%), seven replicates and thirteen animals per experimental unit (EU). Weight gain (WG), average feed intake (AFI) and feed:gain ratio were evaluated. At 42 days of age, blood samples were collected from two broilers of each EU, and one broiler per EU was slaughtered to investigate the intestinal development. DBR interposed the WG and promoted a linear effect in this variable from 22 to 42 days of age. This effect was not observed for AFI. The inclusion of DBR interfered with the serum cholesterol values, showing a quadratic influence at the maximum response for the inclusion of 4.96%. However, the blood parameters of triglycerides, uric acid, creatinine, aspartate aminotransferase, alanine aminotransferase and total protein remained unchanged, regardless of the level of dietary DBR. No changes in villus height and crypt depth were observed by intestinal morphometric evaluation. The inclusion of 10% DBR can be used in a poultry diet, without any damage to the performance, metabolism and development of the broilers. Key words: Alternative feed. Brewery industry. Co-product. Performance. ResumoOs resíduos da indústria alimentícia tem potencial para substituição dos ingredientes tradicionalmente utilizados nas rações animais, neste contexto o resíduo seco de cervejaria (RSC) pode ser uma alternativa para esta finalidade. Este estudo teve o objetivo de avaliar o RSC em rações de frangos de corte dos 22 a 42 dias de idade. Foram utilizados 546 pintos, machos, com peso médio inicial de 865 ± 8 g, distribuídos em um DIC, com 6 níveis de inclusão de RSC (0; 2; 4; 6; 8; 10%), 7 repetições e 13 animais por unidade experimental (UE). Foi realizada avaliação do ganho de peso (GP), consumo médio de ração (CMR) e conversão alimentar (CA). Aos 42 dias foram coletadas amostras de sangue de duas aves por UE, e abatida uma ave por UE, para avaliar o desenvolvimento das vilosidades intestinais. O RSC interferiu no GP promovendo um efeito linear sobre esta variável dos 22 aos 42 dias de idade, efeito este não observado para a CA e o CMR. A inclusão de RSC interferiu nos valores séricos de colesterol, com um efeito quadrático ao ponto máximo de resposta no nível de 4,96% de inclusão. parâmetros sanguíneos de triglicerídeos, ácido úrico, creatinina, aspartato aminotransferase, alanina aminotrasferase e proteína total permaneceram inalterados independente do nível de RSC da dieta. Não foram observadas alterações nas vilosidades e profundidade de criptas pela avaliação morfometrica intestinal. A inclusão de 10% de RSC pode ser realizada sem qu...

show abstract

Section: Resultssupporting

confidence: 90%

Dry brewery residue in broiler chickens feed

Parpinelli

Cella

Savaris

et al. 2018

SCA

View full text Add to dashboard Cite

show abstract

“…Thus, because a greater villus height was found in the treatment with Enzymmix F without an increase in crypt depth (Table 7), it is understood that the product has the potential to improve intestinal quality. However, Silva et al (2011) submitted that the villus/crypt ratio is the best indicator of the digestive capacity of the small intestine, and this parameter did not differ across the treatments tested in the present study.…”

Section: Factormentioning

confidence: 41%

“…The use of the same ingredient base (corn and soybean) for the formulation of the diet as well as the same line of the birds likely contributed to this result. Differences in yields of carcass and cuts are more common when different raw materials (Geron et al, 2015;Frank et al, 2016), lines (Api et al, 2017;Silva et al, 2017) and diet physical forms (Oliveira et al, 2011) are used.…”

Section: Factormentioning

confidence: 99%

Evaluation of the “Enzymmix F” Product as an Additive for Broilers Reared in an Antibiotic-Free System

Pereira¹,

Pereira²,

Filho³

et al. 2018

RBAS

View full text Add to dashboard Cite

This experiment was undertaken to compare the effects of using the Enzymmix F product with a Brazilian enzyme blend in diets with different nutritional levels. A total of 1,080 male broiler chicks were distributed into a randomized-block design with a 3 × 2 factorial arrangement consisting of three enzyme complexes (Enzyme Blend, Enzymmix F, and the combination of both) and two nutritional levels (regular and reduced). We evaluated the birds' performance in the periods of 1 to 21 and 1 to 42 days of age. The yields of carcass and cuts and intestinal integrity were evaluated at 45 days of age. During the analyzed periods, no significant difference was observed for the performance parameters considering the "enzyme" factor. However, the reduction in the nutritional level of the diet resulted in inferior performance in both periods. There was no statistical difference for the yields (%) of carcass and cuts. Enzymmix F provided the greatest villus height in the jejunum segment. The use of the Enzyme Blend in the nutritionally reduced diet led to a lower crypt depth. In conclusion, Enzymmix F increased the weight of wings (g) and the villus height in the jejunum.

show abstract

“…Não houve efeito significativo (P>0,05) entre as linhagens para o índice de viabilidade. Silva et al (2017) compararam a viabilidade criatória de linhagens comerciais e notaram maiores índices nos machos, além de apresentaram melhores desempenhos e características de carcaças do que as fêmeas.…”

Section: Resultsunclassified

Desempenho Zootécnico E Rendimento De Carcaça De Linhagens De Frangos De Corte Criadas Sob Condições Ambientais Da Amazônia Ocidental

Pires¹,

Cordeiro²,

Freitas³

et al. 2019

Enci Bio

View full text Add to dashboard Cite

The aim of this study was to evaluate the effect of microclimate on production performance and carcass yield of two lines of commercial broilers reared in the environmental conditions of western Amazon. A total of 280 hens of the Cobb and Ross lines were distributed in a randomized block design, in which the sex was considered the block factor, with two treatments and seven replicates per treatment. The evaluated parameters were live weight, feed intake, feed conversion, feed efficiency, and viability. At 63 days, 10% of the birds from each plot were selected for an evaluation of carcass yield, prime cuts, abdominal fat content, and edible viscera. During the experimental period, temperature and relative humidity readings were obtained to characterize the microclimate. A large variation was observed in air temperature and relative humidity throughout the experimental period. The Cobb line had a higher live weight than the Ross line from 21 days of age, and lower feed intake after 28 days of age. No effect of lines was detected on the feed conversion, feed efficiency, or viability parameters. There were no significant differences between the lines in terms of carcass yield, edible viscera, prime cuts, or abdominal fat. Low comfort temperatures during the first weeks and high comfort temperatures in the subsequent weeks, associated with a high fluctuation of the air relative humidity, compromised the production performance of the broilers.

show abstract

Desempenho e características de carcaça de três genótipos comerciais de frangos de corte alimentados com diferentes dietas

Cited by 6 publications

References 12 publications

Dry brewery residue in broiler chickens feed

Dry brewery residue in broiler chickens feed

Evaluation of the “Enzymmix F” Product as an Additive for Broilers Reared in an Antibiotic-Free System

Desempenho Zootécnico E Rendimento De Carcaça De Linhagens De Frangos De Corte Criadas Sob Condições Ambientais Da Amazônia Ocidental

Contact Info

Product

Resources

About