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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
07/04/2015 |
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Data da última atualização: |
08/04/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERTECHINI, A. G.; MAZZUCO, H.; RODRIGUES, E. C.; RAMOS, E. M. |
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Afiliação: |
ANTONIO GILBERTO BERTECHINI, UFL; HELENICE MAZZUCO, CNPSA; ERIKA CRISTINA RODRIGUES; EDUARDO MENDES RAMOS, UFL. |
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Título: |
Study of the utilization of light egg-type males: A proposal for the sustainability of the egg industry |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Poultry Science, v. 93, p. 755-761, 2014. |
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DOI: |
10.3382/ps.2013-03462 |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated the performance and viability of light egg-type males, usually euthanized at the hatcheries, from White and Brown Leghorn laying hen lines. One-day-old male chicks, half from each hen line, were raised in floor pens until they were 42 d of age. The birds were distributed into 48 floor pens, furnished with tube feeders and nipple drinkers, and submitted to 24 h of continuous light, 3 feeding phases (1-7, 8-21, and 22-42 d) and diets composed of corn and soybean meal as the main ingredients. A completely randomized design was used in a 4 × 2 factorial arrangement (phase levels of ME dietary treatments × strain) of 6 replicates of 40 birds each. The variables evaluated were bird performance, carcass quality, and yield at 42 d of age. Mortality and cannibalism were not observed during the entire experimental period, although the birds' beaks were not trimmed. The brown males line showed higher feed consumption and BW gain and better feed conversion compared with the white male line (P< 0.05). Metabolizable energy (kcal/kg) levels of 3,200 (1 to 7 d), 3,050 (8 to 21 d), and 3,200 (22 to 42 d) provided better performance (P< 0.05) in both lines. The carcass yields were similar (P> 0.05) between the 2 lines; males from the white line showed higher breast yield, and the brown line males showed higher yield of thighs and drumstick (P< 0.05). The treatments had no effect on meat quality (P > 0.05). Overall, the results suggest that there is great viability for the use of male chicks from laying hens of both leghorn lines as a high quality protein source for human consumption. MenosThis study evaluated the performance and viability of light egg-type males, usually euthanized at the hatcheries, from White and Brown Leghorn laying hen lines. One-day-old male chicks, half from each hen line, were raised in floor pens until they were 42 d of age. The birds were distributed into 48 floor pens, furnished with tube feeders and nipple drinkers, and submitted to 24 h of continuous light, 3 feeding phases (1-7, 8-21, and 22-42 d) and diets composed of corn and soybean meal as the main ingredients. A completely randomized design was used in a 4 × 2 factorial arrangement (phase levels of ME dietary treatments × strain) of 6 replicates of 40 birds each. The variables evaluated were bird performance, carcass quality, and yield at 42 d of age. Mortality and cannibalism were not observed during the entire experimental period, although the birds' beaks were not trimmed. The brown males line showed higher feed consumption and BW gain and better feed conversion compared with the white male line (P< 0.05). Metabolizable energy (kcal/kg) levels of 3,200 (1 to 7 d), 3,050 (8 to 21 d), and 3,200 (22 to 42 d) provided better performance (P< 0.05) in both lines. The carcass yields were similar (P> 0.05) between the 2 lines; males from the white line showed higher breast yield, and the brown line males showed higher yield of thighs and drumstick (P< 0.05). The treatments had no effect on meat quality (P > 0.05). Overall, the results suggest that there is great viability for the... Mostrar Tudo |
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Palavras-Chave: |
Qualidade da carne; Qualidade do ovo; Sustentabilidade. |
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Thesagro: |
Industrialização. |
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Thesaurus Nal: |
Egg industry; Egg quality; Environmental sustainability; Meat quality. |
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Categoria do assunto: |
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Marc: |
LEADER 02420naa a2200265 a 4500
001 2012932
005 2015-04-08
008 2014 bl uuuu u00u1 u #d
024 7 $a10.3382/ps.2013-03462$2DOI
100 1 $aBERTECHINI, A. G.
245 $aStudy of the utilization of light egg-type males$bA proposal for the sustainability of the egg industry$h[electronic resource]
260 $c2014
520 $aThis study evaluated the performance and viability of light egg-type males, usually euthanized at the hatcheries, from White and Brown Leghorn laying hen lines. One-day-old male chicks, half from each hen line, were raised in floor pens until they were 42 d of age. The birds were distributed into 48 floor pens, furnished with tube feeders and nipple drinkers, and submitted to 24 h of continuous light, 3 feeding phases (1-7, 8-21, and 22-42 d) and diets composed of corn and soybean meal as the main ingredients. A completely randomized design was used in a 4 × 2 factorial arrangement (phase levels of ME dietary treatments × strain) of 6 replicates of 40 birds each. The variables evaluated were bird performance, carcass quality, and yield at 42 d of age. Mortality and cannibalism were not observed during the entire experimental period, although the birds' beaks were not trimmed. The brown males line showed higher feed consumption and BW gain and better feed conversion compared with the white male line (P< 0.05). Metabolizable energy (kcal/kg) levels of 3,200 (1 to 7 d), 3,050 (8 to 21 d), and 3,200 (22 to 42 d) provided better performance (P< 0.05) in both lines. The carcass yields were similar (P> 0.05) between the 2 lines; males from the white line showed higher breast yield, and the brown line males showed higher yield of thighs and drumstick (P< 0.05). The treatments had no effect on meat quality (P > 0.05). Overall, the results suggest that there is great viability for the use of male chicks from laying hens of both leghorn lines as a high quality protein source for human consumption.
650 $aEgg industry
650 $aEgg quality
650 $aEnvironmental sustainability
650 $aMeat quality
650 $aIndustrialização
653 $aQualidade da carne
653 $aQualidade do ovo
653 $aSustentabilidade
700 1 $aMAZZUCO, H.
700 1 $aRODRIGUES, E. C.
700 1 $aRAMOS, E. M.
773 $tPoultry Science$gv. 93, p. 755-761, 2014.
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
27/01/2021 |
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Data da última atualização: |
27/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
SILVA, J. O. da C. e; BRUCKNER, C. H.; CARNEIRO, P. C. S.; RESENDE, M. D. V. de; ALVES, R. S.; MATIAS, R. G. P. |
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Afiliação: |
JOSÉ OSMAR DA COSTA E SILVA, UFV; CLAUDIO HORST BRUCKNER, UFV; PEDRO CRESCÊNCIO SOUZA CARNEIRO, UFV; MARCOS DEON VILELA DE RESENDE, CNPCa; RODRIGO SILVA ALVES, UFV; ROSANA GONÇALVES PIRES MATIAS, UFV. |
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Título: |
Estimates of genetic parameters and repeatability coefficients in S2 peach genotypes grown in a subtropical environment. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Functional Plant Breeding Journal, v. 2, n. 1, 2020. p. 25-33. |
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DOI: |
http://dx.doi.org/10.35418/2526-4117/v2n1a3 |
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Idioma: |
Inglês |
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Conteúdo: |
Estimates of genetic parameters and repeatability coefficients in peach breeding are scarce. In view of this, the present study was carried out to estimate genetic parameters for plant and fruit traits and repeatability coefficients for fruit traits in S2 peach genotypes grown in a subtropical environment. A total of 434 individuals from 55 full-sib families of five populations were used in the study. The following plant traits were evaluated: trunk diameter at 10 cm above soil level (TD10), trunk diameter at 130 cm above soil level (TD130), plant height (PH), rate of budding on mixed branches (RB), rate of blind nodes on mixed branches (RBN), fruit number (FN) and harvest time (HT). In the fruit, the following traits were measured: weight (FW), diameter (FD), length (FL), diameter/length ratio (FD/FL), percentage of red in the epidermis (PRE), apex prominence (AP), suture line prominence (SLP), total soluble solids content (TSS), total titratable acidity (TTA) and TSS/TTA ratio (TSS/TTA). Repeated measures were performed for FD, FL, FD/FL, PRE, AP and SLP. Statistical analyses were run through the mixed model methodology. Genetic variability was detected for all traits. Individual narrowsense heritability values of moderate to high magnitude were found for the plant traits and of low to moderate magnitude for the fruit traits. Repeatability coefficients of moderate to high magnitude were obtained for the fruit traits. Except for the SLP trait, the evaluation of six fruits per plant revealed coefficients of determination higher than 80%, indicating high accuracy. MenosEstimates of genetic parameters and repeatability coefficients in peach breeding are scarce. In view of this, the present study was carried out to estimate genetic parameters for plant and fruit traits and repeatability coefficients for fruit traits in S2 peach genotypes grown in a subtropical environment. A total of 434 individuals from 55 full-sib families of five populations were used in the study. The following plant traits were evaluated: trunk diameter at 10 cm above soil level (TD10), trunk diameter at 130 cm above soil level (TD130), plant height (PH), rate of budding on mixed branches (RB), rate of blind nodes on mixed branches (RBN), fruit number (FN) and harvest time (HT). In the fruit, the following traits were measured: weight (FW), diameter (FD), length (FL), diameter/length ratio (FD/FL), percentage of red in the epidermis (PRE), apex prominence (AP), suture line prominence (SLP), total soluble solids content (TSS), total titratable acidity (TTA) and TSS/TTA ratio (TSS/TTA). Repeated measures were performed for FD, FL, FD/FL, PRE, AP and SLP. Statistical analyses were run through the mixed model methodology. Genetic variability was detected for all traits. Individual narrowsense heritability values of moderate to high magnitude were found for the plant traits and of low to moderate magnitude for the fruit traits. Repeatability coefficients of moderate to high magnitude were obtained for the fruit traits. Except for the SLP trait, the evaluation of six fruits p... Mostrar Tudo |
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Thesagro: |
Melhoramento Genético Vegetal; Pêssego. |
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Thesaurus NAL: |
Fruits; Peaches; Prunus persica var. nucipersica; Selection methods. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220698/1/ESTIMATES-OF-GENETIC-PARAMETERS.pdf
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Marc: |
LEADER 02457naa a2200265 a 4500
001 2129617
005 2021-01-27
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.35418/2526-4117/v2n1a3$2DOI
100 1 $aSILVA, J. O. da C. e
245 $aEstimates of genetic parameters and repeatability coefficients in S2 peach genotypes grown in a subtropical environment.$h[electronic resource]
260 $c2020
520 $aEstimates of genetic parameters and repeatability coefficients in peach breeding are scarce. In view of this, the present study was carried out to estimate genetic parameters for plant and fruit traits and repeatability coefficients for fruit traits in S2 peach genotypes grown in a subtropical environment. A total of 434 individuals from 55 full-sib families of five populations were used in the study. The following plant traits were evaluated: trunk diameter at 10 cm above soil level (TD10), trunk diameter at 130 cm above soil level (TD130), plant height (PH), rate of budding on mixed branches (RB), rate of blind nodes on mixed branches (RBN), fruit number (FN) and harvest time (HT). In the fruit, the following traits were measured: weight (FW), diameter (FD), length (FL), diameter/length ratio (FD/FL), percentage of red in the epidermis (PRE), apex prominence (AP), suture line prominence (SLP), total soluble solids content (TSS), total titratable acidity (TTA) and TSS/TTA ratio (TSS/TTA). Repeated measures were performed for FD, FL, FD/FL, PRE, AP and SLP. Statistical analyses were run through the mixed model methodology. Genetic variability was detected for all traits. Individual narrowsense heritability values of moderate to high magnitude were found for the plant traits and of low to moderate magnitude for the fruit traits. Repeatability coefficients of moderate to high magnitude were obtained for the fruit traits. Except for the SLP trait, the evaluation of six fruits per plant revealed coefficients of determination higher than 80%, indicating high accuracy.
650 $aFruits
650 $aPeaches
650 $aPrunus persica var. nucipersica
650 $aSelection methods
650 $aMelhoramento Genético Vegetal
650 $aPêssego
700 1 $aBRUCKNER, C. H.
700 1 $aCARNEIRO, P. C. S.
700 1 $aRESENDE, M. D. V. de
700 1 $aALVES, R. S.
700 1 $aMATIAS, R. G. P.
773 $tFunctional Plant Breeding Journal$gv. 2, n. 1, 2020. p. 25-33.
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Embrapa Café (CNPCa) |
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