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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/06/2001 |
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Data da última atualização: |
25/01/2024 |
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Autoria: |
BIANCHI, G.; BURGUENO, J.; FERNANDEZ ABELLA, D.; GARIBOTTO, G.; CACERES, R.; CESAR, R.; JONES, G. |
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Título: |
Post weaning feeding management and performance of Merino ewes grazing on natural and improved pastures at mating season. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Ciência Rural, v. 31, n. 1, p. 105-110, fev. 2001. |
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DOI: |
http://dx.doi.org/10.1590/S0103-84782001000100017 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: In the uruguayan Basalt region, the reproductive performance of 300 Merino ewes and the effect of 3 post-weaning feeding managements (PWFM: I: 1.2 cm height of available forage and 16 ewes/ha; II: 2.03 cm height of available forage and 5 ewes/ha; III: 2.5cm height of available forage and 1 ewe/ha) as well as 2 feeding levels before and during the breeding season (FLM: native pastures: green DM/ha: 883kg, CP: 114g/kg DM, NDF: 781g/kg DM and improved pastures: DM /ha: 1270kg, CP: 194g/kg DM, NDF: 598g/kg DM) were studied with a factorial arrangement of treatments. The PWFM extended for 70 days, ewes were mated in the period from 13/4/96 to 13/5/96 and FLM were applied for 30 days, starting 15 days before beginning of breeding. There were not differences on the ovulation rate (P>0.05); however, the P values might indicate some effect of the treatments. The number of born lambs/ewe served increased with the ovulation rate because the higher number of ovulations balanced their less viability, individually considered. Actually, the number of born lambs/ewe served was higher with animals coming from PWFM III (1.18, 1.11 and 0.96, PWFM III, II and I, respectively; P = 0.02) and with the animals grazing on improved pastures at mating period (1.13 and 1.03, improved pastures and natural pastures, respectively; P = 0.10), were those which showed slight higher ovulation rate. [Manejo alimentar pós-desmame e performance de ovelhas merino em pastagens naturais e artificiais na época de encarneiramento]. Resumo: Na região de solos de Basalto (Salto, Uruguai: 32.5º de latitude sul e 58º de longitude oeste), estudou-se, em um delineamento em blocos casualizados com arranjo fatorial, o efeito de 3 manejos alimentares pos-desmame (MAPD: I : 1,2cm de altura da forragem disponível e 16 ovelhas/ha; II: 2,03cm de altura da forragem disponível e 5 ovelhas/ha; III: 2,5cm de altura da forragem disponível e 1 ovelha/ha) e 2 níveis de alimentacão no período de encarneiramento (NAE: campo natural: 883kg MS verde/ha, PB: 114g/kg MS e FDN: 781g/kg MS; pastagem artificial: 1270kg MS/ha, PB: 194g/kg MS e FDN: 598g/kg MS), no desempenho reprodutivo de 300 ovelhas Merino. O MAPD estendeu-se por 70 dias. O período de encarneiramento foi de 13/4-13/5/96 e os NAE foram aplicados por 30 dias, iniciando-se 15 dias antes do início do período de cobertura. O número de cordeiros nascidos/ovelha cobertas incrementou-se ao aumentar a taxa ovulatória devido ao fato de o maior número de óvulos liberados compensar a menor viabilidade destes. O número de cordeiros nascidos/ovelha coberta foi maior nas ovelhas provenientes do MAPD III (1,18, 1,11 e 0,96, MAPD III, II e I, respectivamente, P = 0,02) e naquelas que foram submetidas às pastagens artificiais durante o período de encarneiramento (1,13 e 1,03, pastagem artificial e natural, respectivamente, P = 0,10). Essas foram as que apresentaram uma tendência de valores superiores em taxa ovulatória. MenosAbstract: In the uruguayan Basalt region, the reproductive performance of 300 Merino ewes and the effect of 3 post-weaning feeding managements (PWFM: I: 1.2 cm height of available forage and 16 ewes/ha; II: 2.03 cm height of available forage and 5 ewes/ha; III: 2.5cm height of available forage and 1 ewe/ha) as well as 2 feeding levels before and during the breeding season (FLM: native pastures: green DM/ha: 883kg, CP: 114g/kg DM, NDF: 781g/kg DM and improved pastures: DM /ha: 1270kg, CP: 194g/kg DM, NDF: 598g/kg DM) were studied with a factorial arrangement of treatments. The PWFM extended for 70 days, ewes were mated in the period from 13/4/96 to 13/5/96 and FLM were applied for 30 days, starting 15 days before beginning of breeding. There were not differences on the ovulation rate (P>0.05); however, the P values might indicate some effect of the treatments. The number of born lambs/ewe served increased with the ovulation rate because the higher number of ovulations balanced their less viability, individually considered. Actually, the number of born lambs/ewe served was higher with animals coming from PWFM III (1.18, 1.11 and 0.96, PWFM III, II and I, respectively; P = 0.02) and with the animals grazing on improved pastures at mating period (1.13 and 1.03, improved pastures and natural pastures, respectively; P = 0.10), were those which showed slight higher ovulation rate. [Manejo alimentar pós-desmame e performance de ovelhas merino em pastagens naturais e artificiais na é... Mostrar Tudo |
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Palavras-Chave: |
Body conduction; Epoca de casalamento; Mating; Uruguai. |
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Thesagro: |
Nutrição; Ovino. |
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Thesaurus Nal: |
reproductive performance; sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03879naa a2200301 a 4500
001 1519375
005 2024-01-25
008 2001 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S0103-84782001000100017$2DOI
100 1 $aBIANCHI, G.
245 $aPost weaning feeding management and performance of Merino ewes grazing on natural and improved pastures at mating season.$h[electronic resource]
260 $c2001
520 $aAbstract: In the uruguayan Basalt region, the reproductive performance of 300 Merino ewes and the effect of 3 post-weaning feeding managements (PWFM: I: 1.2 cm height of available forage and 16 ewes/ha; II: 2.03 cm height of available forage and 5 ewes/ha; III: 2.5cm height of available forage and 1 ewe/ha) as well as 2 feeding levels before and during the breeding season (FLM: native pastures: green DM/ha: 883kg, CP: 114g/kg DM, NDF: 781g/kg DM and improved pastures: DM /ha: 1270kg, CP: 194g/kg DM, NDF: 598g/kg DM) were studied with a factorial arrangement of treatments. The PWFM extended for 70 days, ewes were mated in the period from 13/4/96 to 13/5/96 and FLM were applied for 30 days, starting 15 days before beginning of breeding. There were not differences on the ovulation rate (P>0.05); however, the P values might indicate some effect of the treatments. The number of born lambs/ewe served increased with the ovulation rate because the higher number of ovulations balanced their less viability, individually considered. Actually, the number of born lambs/ewe served was higher with animals coming from PWFM III (1.18, 1.11 and 0.96, PWFM III, II and I, respectively; P = 0.02) and with the animals grazing on improved pastures at mating period (1.13 and 1.03, improved pastures and natural pastures, respectively; P = 0.10), were those which showed slight higher ovulation rate. [Manejo alimentar pós-desmame e performance de ovelhas merino em pastagens naturais e artificiais na época de encarneiramento]. Resumo: Na região de solos de Basalto (Salto, Uruguai: 32.5º de latitude sul e 58º de longitude oeste), estudou-se, em um delineamento em blocos casualizados com arranjo fatorial, o efeito de 3 manejos alimentares pos-desmame (MAPD: I : 1,2cm de altura da forragem disponível e 16 ovelhas/ha; II: 2,03cm de altura da forragem disponível e 5 ovelhas/ha; III: 2,5cm de altura da forragem disponível e 1 ovelha/ha) e 2 níveis de alimentacão no período de encarneiramento (NAE: campo natural: 883kg MS verde/ha, PB: 114g/kg MS e FDN: 781g/kg MS; pastagem artificial: 1270kg MS/ha, PB: 194g/kg MS e FDN: 598g/kg MS), no desempenho reprodutivo de 300 ovelhas Merino. O MAPD estendeu-se por 70 dias. O período de encarneiramento foi de 13/4-13/5/96 e os NAE foram aplicados por 30 dias, iniciando-se 15 dias antes do início do período de cobertura. O número de cordeiros nascidos/ovelha cobertas incrementou-se ao aumentar a taxa ovulatória devido ao fato de o maior número de óvulos liberados compensar a menor viabilidade destes. O número de cordeiros nascidos/ovelha coberta foi maior nas ovelhas provenientes do MAPD III (1,18, 1,11 e 0,96, MAPD III, II e I, respectivamente, P = 0,02) e naquelas que foram submetidas às pastagens artificiais durante o período de encarneiramento (1,13 e 1,03, pastagem artificial e natural, respectivamente, P = 0,10). Essas foram as que apresentaram uma tendência de valores superiores em taxa ovulatória.
650 $areproductive performance
650 $asheep
650 $aNutrição
650 $aOvino
653 $aBody conduction
653 $aEpoca de casalamento
653 $aMating
653 $aUruguai
700 1 $aBURGUENO, J.
700 1 $aFERNANDEZ ABELLA, D.
700 1 $aGARIBOTTO, G.
700 1 $aCACERES, R.
700 1 $aCESAR, R.
700 1 $aJONES, G.
773 $tCiência Rural$gv. 31, n. 1, p. 105-110, fev. 2001.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Solos; Embrapa Suínos e Aves. |
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Data corrente: |
22/11/2022 |
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Data da última atualização: |
01/12/2022 |
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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: |
FEDDERN, V.; SCHEUERMANN, G. N.; COLDEBELLA, A.; GRESSLER, V.; BEDENDO, G. C.; CARON, L.; PEDROSO, A. C.; BACILA, D. M.; CUNHA JUNIOR, A. |
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Afiliação: |
VIVIAN FEDDERN, CNPSA; GERSON NEUDI SCHEUERMANN, CNPSA; ARLEI COLDEBELLA, CNPSA; VANESSA GRESSLER, CNPSA; GIZELLE CRISTINA BEDENDO, CNPS; LUIZINHO CARON, CNPSA; ANTONIO C. PEDROSO, Instituto Federal Catarinense/Campus Concórdia; DANNIELE M. BACILA, Universidade Federal do Paraná; ANILDO CUNHA JUNIOR, CNPSA. |
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Título: |
Nicarbazin residue in tissues from broilers reared on reused litter conditions. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Animals, v. 12, n. 3107, 2022. |
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DOI: |
https://doi.org/10.3390/ani12223107 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Nicarbazin (NCZ) is a worldwide used anticoccidial in poultry farming to avoid coccidiosis disease when chickens are reared on conventional poultry litter. If proper dosage and withdrawal time are not followed, the component dinitrocarbanilide (DNC) of NCZ may be present in chicken tissues, therefore posing a risk to consumers if the residues are above 200 ?g/kg. Litter reuse is a common and important practice in commercial chicken production. Literature is lacking about the influence of litter reuse on DNC deposition in chicken tissues and its impact on food safety. We aimed to evaluate DNC residues in breast and liver by LC?MS/MS from broilers from an experiment with 10 consecutive flocks during 2 years. The experiment included three treatments containing NCZ in the diet (T1 = 125 mg/kg, 1?21 d; T2 = 125 mg/kg, 1?32 d; T3 = 40 mg/kg, 1?32 d). DNC residues in chicken breast at 21 d in T1 ranged from 648.8?926 ?g/kg, at 32 d in T2 and T3 varied, respectively, from 232?667 ?g/kg and 52?189 ?g/kg. Regarding liver, DNC residues at 21 days in T1 ranged from 11,754?15,281 ?g/kg, at 32 days in T2 and T3 varied, respectively, from 10,168?15,021 ?g/kg and 2899?4573 ?g/kg. When NCZ was withdrawn from feed, DNC residues dropped to
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Palavras-Chave: |
Chicken breast fillet; Chicken liver; Dinitrocarbazina; DNC residues; File de peito de frango; Nic; Poultry farming; Resíduos de tecidos. |
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Thesagro: |
Avicultura; Fígado; Frango de Corte; Segurança Alimentar. |
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Thesaurus NAL: |
Aviculture; Chemical residues; Liquid chromatography; Nicarbazin. |
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Categoria do assunto: |
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E Economia e Indústria Agrícola |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148557/1/final9929.pdf
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Marc: |
LEADER 02593naa a2200421 a 4500
001 2148557
005 2022-12-01
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/ani12223107$2DOI
100 1 $aFEDDERN, V.
245 $aNicarbazin residue in tissues from broilers reared on reused litter conditions.$h[electronic resource]
260 $c2022
520 $aAbstract: Nicarbazin (NCZ) is a worldwide used anticoccidial in poultry farming to avoid coccidiosis disease when chickens are reared on conventional poultry litter. If proper dosage and withdrawal time are not followed, the component dinitrocarbanilide (DNC) of NCZ may be present in chicken tissues, therefore posing a risk to consumers if the residues are above 200 ?g/kg. Litter reuse is a common and important practice in commercial chicken production. Literature is lacking about the influence of litter reuse on DNC deposition in chicken tissues and its impact on food safety. We aimed to evaluate DNC residues in breast and liver by LC?MS/MS from broilers from an experiment with 10 consecutive flocks during 2 years. The experiment included three treatments containing NCZ in the diet (T1 = 125 mg/kg, 1?21 d; T2 = 125 mg/kg, 1?32 d; T3 = 40 mg/kg, 1?32 d). DNC residues in chicken breast at 21 d in T1 ranged from 648.8?926 ?g/kg, at 32 d in T2 and T3 varied, respectively, from 232?667 ?g/kg and 52?189 ?g/kg. Regarding liver, DNC residues at 21 days in T1 ranged from 11,754?15,281 ?g/kg, at 32 days in T2 and T3 varied, respectively, from 10,168?15,021 ?g/kg and 2899?4573 ?g/kg. When NCZ was withdrawn from feed, DNC residues dropped to <LOQ at 42 d in all treatments. Therefore, the reuse of poultry litter does not compromise food safety regarding DNC residues in chicken tissues, as shown herein up to 10 flocks.
650 $aAviculture
650 $aChemical residues
650 $aLiquid chromatography
650 $aNicarbazin
650 $aAvicultura
650 $aFígado
650 $aFrango de Corte
650 $aSegurança Alimentar
653 $aChicken breast fillet
653 $aChicken liver
653 $aDinitrocarbazina
653 $aDNC residues
653 $aFile de peito de frango
653 $aNic
653 $aPoultry farming
653 $aResíduos de tecidos
700 1 $aSCHEUERMANN, G. N.
700 1 $aCOLDEBELLA, A.
700 1 $aGRESSLER, V.
700 1 $aBEDENDO, G. C.
700 1 $aCARON, L.
700 1 $aPEDROSO, A. C.
700 1 $aBACILA, D. M.
700 1 $aCUNHA JUNIOR, A.
773 $tAnimals$gv. 12, n. 3107, 2022.
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