Farelo da raiz integral de mandioca em dietas de frangos de corte tipo caipira
The aim this work was to evaluate cassava root meal inclusion levels in diets of free-range broiler chickens on performance, carcass yield, parts yield and functional properties of the meat. 384 male chickens of ISA S757-N strain (naked neck) were distributed in a completely randomized design with f...
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Published in: | Archivos de zootecnia Vol. 60; no. 231; pp. 489 - 499 |
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Main Authors: | , , , , , , |
Format: | Journal Article |
Language: | Portuguese |
Published: |
2011
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Abstract | The aim this work was to evaluate cassava
root meal inclusion levels in diets of free-range
broiler chickens on performance, carcass yield,
parts yield and functional properties of the meat.
384 male chickens of ISA S757-N strain (naked neck) were distributed in a completely randomized
design with four treatment and four replicates of
24 birds each. The treatments were 0%, 20%,
40% and 60% of FRIM (cassava root meal) in the
total ration. The trial period was divided into three
rearing phases: initial (1 to 28 days of age), growth
(29 to 56 days of age) and fattening (57 to 84 days
of age). Final body weight (PF), weight gain (WG),
feed intake, feed conversion and liveability were
evaluated. At 84 th day, carcass, breast, thigh +
upper thigh, wing, back and abdominal fat yield
were obtained. Breast meat was used to determi-
ne the pH, water holding capacity (CRA) and
cooking loss (PPC) too. The shank and breast skin
color scores were determined by visual
comparison. The results were submitted to analysis
of variance, analysis of regression and averages
were compared by Tukey’s test to 5% of probability.
The analysis of variance found a significant
difference between treatments for BW and WG,
only at the phase of 1 to 28 days of age. There was
a linear increased in BW and WG when the CRM
inclusion level increased in feed. There were no
significant differences between the treatments
for the variables of carcass yield, cuts yield, pH,
CRA and PPC. The use of FRIM in the diets of free-
range broiler chickens promoted linear reduction
in the shank and breast skin colors with the
increase of the inclusion level of this ingredient in the feed. The FRIM can be used in the diets of free-
range broiler chickens in the proportion of 60% of
total ration without resulting in worst performan-
ce, carcass yield, cuts yield and functional
properties of the meat, however it promotes shank
and breast skin no coloration.
O objetivo do trabalho foi avaliar níveis de
inclusão de farelo da raiz integral de mandioca, em
dietas de frangos de corte tipo caipira, sobre o
desempenho, os rendimentos de carcaça, de
cortes e as propriedades funcionais da carne.
Foram distribuídos 384 pintainhos machos da
linhagem ISA S757-N (pescoço pelado) em um
delineamento inteiramente casualizado com quatro
tratamentos e quatro repetições de 24 aves cada.
Os tratamentos foram 0%, 20%, 40% e 60% de
FRIM (farelo da raiz integral de mandioca) na ração
total. O período experimental foi dividido em três
fases de criação: inicial (1 a 28 dias de idade),
crescimento (29 a 56 dias de idade) e engorda (57
a 84 dias de idade). Foram obtidos o peso corporal
final (PF), o ganho de peso (GP), consumo de
ração, conversão alimentar e viabilidade. Aos 84
dias foram obtidos os rendimentos de carcaça,
peito, coxa+sobrecoxa, asa, dorso gordura abdo-
minal e das carnes de peito das aves foram
determinados o pH, capacidade de retenção de
água (CRA) e perda de peso por cozimento (PPC).Por comparação visual, foram determinados os
escores para as cores de pele de canela e de
peito. Os resultados foram submetidos à análise
de variância, à análise de regressão e as médias foram comparadas pelo teste de Tukey a 5% de
probabilidade. A análise de variância detectou
diferença significativa entre os tratamentos para
PF e GP, somente na fase de 1 a 28 dias de idade.
Foi verificado aumento linear para PF e GP à
medida que se aumentou o nível de inclusão de
FRIM na ração. Não existiram diferenças significa-
tivas entre os tratamentos para as variáveis de
rendimento de carcaça, de cortes, pH, CRA e PPC.
A utilização do FRIM nas dietas de frangos de
corte tipo caipira promoveu redução linear na
coloração das peles da canela e do peito das aves
com o aumento do nível de inclusão desse ingre-
diente nas rações. O farelo da raiz integral de
mandioca pode ser utilizado nas dietas de frangos
de corte tipo caipira na proporção de 60% da ração
total sem prejudicar o desempenho, os rendimentos
de carcaça, de corte e as propriedades funcionais
da carne, no entanto promove descoloração das
peles de canela e peito. |
---|---|
AbstractList | The aim this work was to evaluate cassava
root meal inclusion levels in diets of free-range
broiler chickens on performance, carcass yield,
parts yield and functional properties of the meat.
384 male chickens of ISA S757-N strain (naked neck) were distributed in a completely randomized
design with four treatment and four replicates of
24 birds each. The treatments were 0%, 20%,
40% and 60% of FRIM (cassava root meal) in the
total ration. The trial period was divided into three
rearing phases: initial (1 to 28 days of age), growth
(29 to 56 days of age) and fattening (57 to 84 days
of age). Final body weight (PF), weight gain (WG),
feed intake, feed conversion and liveability were
evaluated. At 84 th day, carcass, breast, thigh +
upper thigh, wing, back and abdominal fat yield
were obtained. Breast meat was used to determi-
ne the pH, water holding capacity (CRA) and
cooking loss (PPC) too. The shank and breast skin
color scores were determined by visual
comparison. The results were submitted to analysis
of variance, analysis of regression and averages
were compared by Tukey’s test to 5% of probability.
The analysis of variance found a significant
difference between treatments for BW and WG,
only at the phase of 1 to 28 days of age. There was
a linear increased in BW and WG when the CRM
inclusion level increased in feed. There were no
significant differences between the treatments
for the variables of carcass yield, cuts yield, pH,
CRA and PPC. The use of FRIM in the diets of free-
range broiler chickens promoted linear reduction
in the shank and breast skin colors with the
increase of the inclusion level of this ingredient in the feed. The FRIM can be used in the diets of free-
range broiler chickens in the proportion of 60% of
total ration without resulting in worst performan-
ce, carcass yield, cuts yield and functional
properties of the meat, however it promotes shank
and breast skin no coloration.
O objetivo do trabalho foi avaliar níveis de
inclusão de farelo da raiz integral de mandioca, em
dietas de frangos de corte tipo caipira, sobre o
desempenho, os rendimentos de carcaça, de
cortes e as propriedades funcionais da carne.
Foram distribuídos 384 pintainhos machos da
linhagem ISA S757-N (pescoço pelado) em um
delineamento inteiramente casualizado com quatro
tratamentos e quatro repetições de 24 aves cada.
Os tratamentos foram 0%, 20%, 40% e 60% de
FRIM (farelo da raiz integral de mandioca) na ração
total. O período experimental foi dividido em três
fases de criação: inicial (1 a 28 dias de idade),
crescimento (29 a 56 dias de idade) e engorda (57
a 84 dias de idade). Foram obtidos o peso corporal
final (PF), o ganho de peso (GP), consumo de
ração, conversão alimentar e viabilidade. Aos 84
dias foram obtidos os rendimentos de carcaça,
peito, coxa+sobrecoxa, asa, dorso gordura abdo-
minal e das carnes de peito das aves foram
determinados o pH, capacidade de retenção de
água (CRA) e perda de peso por cozimento (PPC).Por comparação visual, foram determinados os
escores para as cores de pele de canela e de
peito. Os resultados foram submetidos à análise
de variância, à análise de regressão e as médias foram comparadas pelo teste de Tukey a 5% de
probabilidade. A análise de variância detectou
diferença significativa entre os tratamentos para
PF e GP, somente na fase de 1 a 28 dias de idade.
Foi verificado aumento linear para PF e GP à
medida que se aumentou o nível de inclusão de
FRIM na ração. Não existiram diferenças significa-
tivas entre os tratamentos para as variáveis de
rendimento de carcaça, de cortes, pH, CRA e PPC.
A utilização do FRIM nas dietas de frangos de
corte tipo caipira promoveu redução linear na
coloração das peles da canela e do peito das aves
com o aumento do nível de inclusão desse ingre-
diente nas rações. O farelo da raiz integral de
mandioca pode ser utilizado nas dietas de frangos
de corte tipo caipira na proporção de 60% da ração
total sem prejudicar o desempenho, os rendimentos
de carcaça, de corte e as propriedades funcionais
da carne, no entanto promove descoloração das
peles de canela e peito. |
Author | García, A.M.L Carrijo, A.S Kiefer, C Falco, A.L Manvailer, G.V Fascina, V.B Souza, K.M.R |
Author_xml | – sequence: 1 fullname: Falco, A.L – sequence: 1 fullname: Fascina, V.B – sequence: 1 fullname: Souza, K.M.R – sequence: 1 fullname: García, A.M.L – sequence: 1 fullname: Carrijo, A.S – sequence: 1 fullname: Kiefer, C – sequence: 1 fullname: Manvailer, G.V |
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ContentType | Journal Article |
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root meal inclusion levels in diets of free-range
broiler chickens on performance, carcass yield,
parts yield and... |
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SubjectTerms | Color of skin Cor de pele Ganho de peso Meat functional properties Naked neck Pescoço pelado Propriedades funcionais da carne Rearing system Rendimento de carcaça Sistema de criação Weight gain Yield of carcass |
Title | Farelo da raiz integral de mandioca em dietas de frangos de corte tipo caipira |
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