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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
11/12/2012 |
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Data da última atualização: |
18/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NAKAJIMA, V. M.; COSTA, N. M. B.; MARTINO, H. S. D.; QUEIROZ, V. A. V.; GUIMARAES, P. E. de O.; OLIVEIRA, P. V. |
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Afiliação: |
VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS. |
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Título: |
Iron bioavailability of different maize genotypes developed in a breeding program: in vitro and in vivo studies. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Archivos Latinoamericanos de Nutrición, Caracas, v. 62, n. 2, p. 103-111, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate iron bioavailability of maize genotypes, and analyze the correlation between in vitro and in vivo methods. Dialysable iron was analyzed in 13 genotypes from which 5 were selected for the biological assay. Mean iron content of the genotypes (n=13) was 17.93±2.93 mg kg-1. Phytate varied from 0.77% to 1.03%; phytate: iron molar ratio from 30.64 to 55.41; and soluble iron from 13.17 to 39.63%. The highest value for dialysable iron was 19.14%. In the biological assay, the control group, that received ferrous sulphate, did not present significant difference between the genotypes for Hb gain, Hb gain per gram of iron consumed and HRE. Hb gain did not present a significant correlation with in vitro assay. However, there were positive correlations varying from 0.653 to 0.809. The maize genotypes evaluated presented a good bioavailability since the genotypes showed the same result in hemoglobin gain than control group. |
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Palavras-Chave: |
Biodisponibilidade de ferro; Ensaio biológico; Método de diálise. |
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Thesagro: |
Zea mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01718naa a2200229 a 4500
001 1941980
005 2017-05-18
008 2012 bl uuuu u00u1 u #d
100 1 $aNAKAJIMA, V. M.
245 $aIron bioavailability of different maize genotypes developed in a breeding program$bin vitro and in vivo studies.$h[electronic resource]
260 $c2012
520 $aThe objective of this study was to evaluate iron bioavailability of maize genotypes, and analyze the correlation between in vitro and in vivo methods. Dialysable iron was analyzed in 13 genotypes from which 5 were selected for the biological assay. Mean iron content of the genotypes (n=13) was 17.93±2.93 mg kg-1. Phytate varied from 0.77% to 1.03%; phytate: iron molar ratio from 30.64 to 55.41; and soluble iron from 13.17 to 39.63%. The highest value for dialysable iron was 19.14%. In the biological assay, the control group, that received ferrous sulphate, did not present significant difference between the genotypes for Hb gain, Hb gain per gram of iron consumed and HRE. Hb gain did not present a significant correlation with in vitro assay. However, there were positive correlations varying from 0.653 to 0.809. The maize genotypes evaluated presented a good bioavailability since the genotypes showed the same result in hemoglobin gain than control group.
650 $aZea mays
653 $aBiodisponibilidade de ferro
653 $aEnsaio biológico
653 $aMétodo de diálise
700 1 $aCOSTA, N. M. B.
700 1 $aMARTINO, H. S. D.
700 1 $aQUEIROZ, V. A. V.
700 1 $aGUIMARAES, P. E. de O.
700 1 $aOLIVEIRA, P. V.
773 $tArchivos Latinoamericanos de Nutrición, Caracas$gv. 62, n. 2, p. 103-111, 2012.
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Embrapa Milho e Sorgo (CNPMS) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
07/03/2016 |
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Data da última atualização: |
04/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
KEAMBOU, T. C.; KANA, J. R.; NGAH, A. M.; TEDONGMO, A. M. Y.; JULIANO, R. S.; LISITA, F. O.; MANJELI, Y. |
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Afiliação: |
T. C. KEAMBOU, UNIVERSITY OF BUEA; J. R. KANA, UNIVERSITY OF BUEA; A. M. NGAH, UNIVERSITY OF DSCHANG; A. M. Y. TEDONGMO, UNIVERSITY OF DSCHANG; RAQUEL SOARES JULIANO, CPAP; FREDERICO OLIVIERI LISITA, CPAP; Y. MANJELI, UNIVERSITY OF DSCHANG. |
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Título: |
Socio-economic, technical characteristics and challenges to local chicken production in the Western Highlands of Cameroon. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Livestock Research for Rural Development , v. 28, n. 3, 2016. |
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Páginas: |
não paginado. |
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ISSN: |
0121-3784 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to gain understanding of local chicken farming system from the Western Highlands of Cameroonian. Interviews and structure questionnaire were applied to 156 household.
The main results showed that local chickens are bred by all the tribes in the area. Chicken farming is practiced by 58.3% of women, aged 30 to 50 years (51.3%) who provide 100% of the manpower. Farmers are from all religions, literacy level is relatively high (74.4%) although about 91% of farmers have never been trained in poultry farming, and 14.7% of them have been rearing local chickens for more than 20 years. Local chicken rearing has multiple purposes in 84.6% of farmers (self-consumption, markets, gift and savings). Local chickens farming contribute annually by more than 100.000F CFA to household income. Chicken farming is associated with small ruminants (26.3%), cattle (3.8%), pigs (3.2%) and other animal species (43.1%; dog, cat, commercial chicken broilers, ducks, rabbits guinea pigs). Farmers identified four main genetic types of local chicken, namely normal feathered chickens (98%), crested chickens (44%), naked-neck chickens (26.9%), feathered tarsus chickens (22 %) and frizzle chickens (4.5%). The size of the flocks varied from 7 to 70 with an average of 16 chickens per farm. The structure consists of 8.85% cocks, 23.35% adult hens, 22.1% growers and 45.6%chicks. Chickens were generally raised under free-range and extensive system (96.1%). They were kept overnight in kitchens (50.6%), locally made poultry houses (16.7%), huts (12.2%), abandoned houses (4.5%) while 16% of chickens slept on trees. Kitchen waste (98.7%), free scavenging (96.8%) and cereals (76.9%) were the main sources of feed. The average number of eggs produced in a year varied from 38 to 45 with a hatching rate of 79.6%. The main challenges in chicken farming were diseases (51.9%), predation (48.7%), financial issues for inputs acquisition and lack of equipment (44.2%), feed (41.02%), housing (33.9%), lack of improved genetic material (30.8%) and stock theft were the main constraints. Despite these challenges, most of local poultry farmers were planning to increase their flock size, improve housing, and acquire improved genetic material. This study suggest that more technical support to local chicken farmers could booster the productivity. MenosThe aim of this study was to gain understanding of local chicken farming system from the Western Highlands of Cameroonian. Interviews and structure questionnaire were applied to 156 household.
The main results showed that local chickens are bred by all the tribes in the area. Chicken farming is practiced by 58.3% of women, aged 30 to 50 years (51.3%) who provide 100% of the manpower. Farmers are from all religions, literacy level is relatively high (74.4%) although about 91% of farmers have never been trained in poultry farming, and 14.7% of them have been rearing local chickens for more than 20 years. Local chicken rearing has multiple purposes in 84.6% of farmers (self-consumption, markets, gift and savings). Local chickens farming contribute annually by more than 100.000F CFA to household income. Chicken farming is associated with small ruminants (26.3%), cattle (3.8%), pigs (3.2%) and other animal species (43.1%; dog, cat, commercial chicken broilers, ducks, rabbits guinea pigs). Farmers identified four main genetic types of local chicken, namely normal feathered chickens (98%), crested chickens (44%), naked-neck chickens (26.9%), feathered tarsus chickens (22 %) and frizzle chickens (4.5%). The size of the flocks varied from 7 to 70 with an average of 16 chickens per farm. The structure consists of 8.85% cocks, 23.35% adult hens, 22.1% growers and 45.6%chicks. Chickens were generally raised under free-range and extensive system (96.1%). They were kept overnight in kitch... Mostrar Tudo |
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Palavras-Chave: |
Family poultry; Production systems. |
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Thesagro: |
Frango. |
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Thesaurus NAL: |
Poultry; Poultry production. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03141naa a2200277 a 4500
001 2039971
005 2016-11-04
008 2016 bl --- 0-- u #d
022 $a0121-3784
100 1 $aKEAMBOU, T. C.
245 $aSocio-economic, technical characteristics and challenges to local chicken production in the Western Highlands of Cameroon.
260 $c2016
300 $anão paginado.
520 $aThe aim of this study was to gain understanding of local chicken farming system from the Western Highlands of Cameroonian. Interviews and structure questionnaire were applied to 156 household. The main results showed that local chickens are bred by all the tribes in the area. Chicken farming is practiced by 58.3% of women, aged 30 to 50 years (51.3%) who provide 100% of the manpower. Farmers are from all religions, literacy level is relatively high (74.4%) although about 91% of farmers have never been trained in poultry farming, and 14.7% of them have been rearing local chickens for more than 20 years. Local chicken rearing has multiple purposes in 84.6% of farmers (self-consumption, markets, gift and savings). Local chickens farming contribute annually by more than 100.000F CFA to household income. Chicken farming is associated with small ruminants (26.3%), cattle (3.8%), pigs (3.2%) and other animal species (43.1%; dog, cat, commercial chicken broilers, ducks, rabbits guinea pigs). Farmers identified four main genetic types of local chicken, namely normal feathered chickens (98%), crested chickens (44%), naked-neck chickens (26.9%), feathered tarsus chickens (22 %) and frizzle chickens (4.5%). The size of the flocks varied from 7 to 70 with an average of 16 chickens per farm. The structure consists of 8.85% cocks, 23.35% adult hens, 22.1% growers and 45.6%chicks. Chickens were generally raised under free-range and extensive system (96.1%). They were kept overnight in kitchens (50.6%), locally made poultry houses (16.7%), huts (12.2%), abandoned houses (4.5%) while 16% of chickens slept on trees. Kitchen waste (98.7%), free scavenging (96.8%) and cereals (76.9%) were the main sources of feed. The average number of eggs produced in a year varied from 38 to 45 with a hatching rate of 79.6%. The main challenges in chicken farming were diseases (51.9%), predation (48.7%), financial issues for inputs acquisition and lack of equipment (44.2%), feed (41.02%), housing (33.9%), lack of improved genetic material (30.8%) and stock theft were the main constraints. Despite these challenges, most of local poultry farmers were planning to increase their flock size, improve housing, and acquire improved genetic material. This study suggest that more technical support to local chicken farmers could booster the productivity.
650 $aPoultry
650 $aPoultry production
650 $aFrango
653 $aFamily poultry
653 $aProduction systems
700 1 $aKANA, J. R.
700 1 $aNGAH, A. M.
700 1 $aTEDONGMO, A. M. Y.
700 1 $aJULIANO, R. S.
700 1 $aLISITA, F. O.
700 1 $aMANJELI, Y.
773 $tLivestock Research for Rural Development$gv. 28, n. 3, 2016.
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