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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
07/10/2015 |
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Data da última atualização: |
07/10/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
HENN, J. D.; BOCKOR, L.; BORILLE, R.; COLDEBELLA, A.; RIBEIRO, A. M. L.; KESSLER, A. M. |
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Afiliação: |
JOAO DIONISIO HENN, CNPSA; LUCIANE BOCKOR, UFRGS/Faculdade de Agronomia/Departamento de Zootecnia; RODRIGO BORILLE, UFRGS/Faculdade de Agronomia/Departamento de Zootecnia; ARLEI COLDEBELLA, CNPSA; ANDRÉA MACHADO LEAL RIBEIRO, UFRGS/Faculdade de Agronomia/Departamento de Zootecnia; ALEXANDRE MELLO KESSLER, UFRGS/Faculdade de Agronomia/Departamento de Zootecnia. |
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Título: |
Determination of the equation parameters of carbon flow curves and estimated carbon flow and CO2 emissions from broiler production. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Poultry Science, v. 94, n. 9, p. 2303-2312, 2015. |
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DOI: |
10.3382/ps/pev178 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to determine the equation parameters of carbon (i.e., C) flow curves and to estimate C flow and carbon dioxide (i.e., CO2) emissions from the production of 1- to 49-dayold broilers from different genetic strains. In total, 384 1-day-old chicks were used, distributed into 4 groups: high-performance males (Cobb-M) and females (Cobb- F), and intermediate-performance males (C44-M) and females (C44-F), with 6 replicates/treatment according to a completely randomized study design. Carbon intake and retention were calculated based on diet and body C composition, and expired C was stoichiometrically estimated as digestible C intake − C retention − C in the urine. Litter C emission was estimated as initial litter C + C in the excreta − final litter C. Carbon flow curves were determined fitting data by nonlinear regression using the Gompertz function. Expired CO2 was calculated based on expired C. The applied nonlinear model presented goodness-of-fit for all responses (R2 > 0.99). Carbon dioxide production was highly correlated with growth rate. At 42 d age, CO2 expiration (g/bird) was 3,384.4 for Cobb-M, 2,947.9 for Cobb-F, 2,512.5 for C44-M, and 2185.1 for C44-F. Age also significantly affected CO2 production: to achieve 2.0 kg BW, CO2 expiration (g/bird) was 1,794.3 for Cobb-M, 2,016.5 for Cobb-F, 2617.7 for C44-M, and 3,092.3 for C44-F. The obtained equations present high predictability to estimate individual CO2 emissions in strains of Cobb and C44 broilers of any weight, or age, reared between 1 and 49 d age. MenosThe objective of this study was to determine the equation parameters of carbon (i.e., C) flow curves and to estimate C flow and carbon dioxide (i.e., CO2) emissions from the production of 1- to 49-dayold broilers from different genetic strains. In total, 384 1-day-old chicks were used, distributed into 4 groups: high-performance males (Cobb-M) and females (Cobb- F), and intermediate-performance males (C44-M) and females (C44-F), with 6 replicates/treatment according to a completely randomized study design. Carbon intake and retention were calculated based on diet and body C composition, and expired C was stoichiometrically estimated as digestible C intake − C retention − C in the urine. Litter C emission was estimated as initial litter C + C in the excreta − final litter C. Carbon flow curves were determined fitting data by nonlinear regression using the Gompertz function. Expired CO2 was calculated based on expired C. The applied nonlinear model presented goodness-of-fit for all responses (R2 > 0.99). Carbon dioxide production was highly correlated with growth rate. At 42 d age, CO2 expiration (g/bird) was 3,384.4 for Cobb-M, 2,947.9 for Cobb-F, 2,512.5 for C44-M, and 2185.1 for C44-F. Age also significantly affected CO2 production: to achieve 2.0 kg BW, CO2 expiration (g/bird) was 1,794.3 for Cobb-M, 2,016.5 for Cobb-F, 2617.7 for C44-M, and 3,092.3 for C44-F. The obtained equations present high predictability to estimate individual CO2 emissions in strai... Mostrar Tudo |
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Palavras-Chave: |
Emissão de gases; Poutry production. |
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Thesagro: |
Avicultura; Produção animal. |
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Thesaurus NAL: |
Gas emissions; Growth factors. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02387naa a2200265 a 4500
001 2026017
005 2015-10-07
008 2015 bl uuuu u00u1 u #d
024 7 $a10.3382/ps/pev178$2DOI
100 1 $aHENN, J. D.
245 $aDetermination of the equation parameters of carbon flow curves and estimated carbon flow and CO2 emissions from broiler production.$h[electronic resource]
260 $c2015
520 $aThe objective of this study was to determine the equation parameters of carbon (i.e., C) flow curves and to estimate C flow and carbon dioxide (i.e., CO2) emissions from the production of 1- to 49-dayold broilers from different genetic strains. In total, 384 1-day-old chicks were used, distributed into 4 groups: high-performance males (Cobb-M) and females (Cobb- F), and intermediate-performance males (C44-M) and females (C44-F), with 6 replicates/treatment according to a completely randomized study design. Carbon intake and retention were calculated based on diet and body C composition, and expired C was stoichiometrically estimated as digestible C intake − C retention − C in the urine. Litter C emission was estimated as initial litter C + C in the excreta − final litter C. Carbon flow curves were determined fitting data by nonlinear regression using the Gompertz function. Expired CO2 was calculated based on expired C. The applied nonlinear model presented goodness-of-fit for all responses (R2 > 0.99). Carbon dioxide production was highly correlated with growth rate. At 42 d age, CO2 expiration (g/bird) was 3,384.4 for Cobb-M, 2,947.9 for Cobb-F, 2,512.5 for C44-M, and 2185.1 for C44-F. Age also significantly affected CO2 production: to achieve 2.0 kg BW, CO2 expiration (g/bird) was 1,794.3 for Cobb-M, 2,016.5 for Cobb-F, 2617.7 for C44-M, and 3,092.3 for C44-F. The obtained equations present high predictability to estimate individual CO2 emissions in strains of Cobb and C44 broilers of any weight, or age, reared between 1 and 49 d age.
650 $aGas emissions
650 $aGrowth factors
650 $aAvicultura
650 $aProdução animal
653 $aEmissão de gases
653 $aPoutry production
700 1 $aBOCKOR, L.
700 1 $aBORILLE, R.
700 1 $aCOLDEBELLA, A.
700 1 $aRIBEIRO, A. M. L.
700 1 $aKESSLER, A. M.
773 $tPoultry Science$gv. 94, n. 9, p. 2303-2312, 2015.
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