Data/hora: 01/06/2024 13:35:58

Biblioteca(s): | Embrapa Caprinos e Ovinos; Embrapa Meio-Norte.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 1
Data corrente: | 19/10/2020
Data da última atualização: | 11/12/2020
Autoria: | OLIVEIRA, D. de S.; ALVES, A. A.; ROGERIO, M. C. P.; POMPEU, R. C. F. F.; PEREIRA, E. S.; AZEVEDO, D. M. M. R.; GUEDES, L. F.; COSTA, C. dos S.; MUIR, J. P.
Afiliação: | DELANO DE SOUSA OLIVEIRA, Universidade Federal do Piauí (UFPI) - Teresina, PI, Brazil; ARNAUD AZEVÊDO ALVES, Universidade Federal do Piauí (UFPI) - Teresina, PI, Brazil; MARCOS CLAUDIO PINHEIRO ROGERIO, CNPC; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; ELZÂNIA SALES PEREIRA, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brazil; DANIELLE MARIA MACHADO R AZEVEDO, CPAMN; LUCIANA FREITAS GUEDES, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brazil; CLÉSIO DOS SANTOS COSTA, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brazil; JAMES PIERRE MUIR, Texas A&M Agrilife Research - Stephenville, TX, USA.
Título: | Influence of nutrient restriction on finishing Morada Nova lambs.
Ano de publicação: | 2020
Fonte/Imprenta: | Tropical Animal Health and Production, v. 52, p. 3509-3518, 2020.
DOI: | 10.1007/s11250-020-02385-5
Idioma: | Inglês
Conteúdo: | Abstract: Our objective was to evaluate the effect of 15% crude protein (CP) and total digestible nutrient (TDN) restriction vis-á-vis that recommended by NRC (2007) on feed intake, digestibility, and average daily gain (ADG) of confined Morada Nova lambs. Twenty lambs with 18.8&#8201;±&#8201;2.8 kg liveweight were assigned to a randomized 2&#8201;×&#8201;2 factorial experiment with either early- or late-maturity feed formulation according to ?Nutrient Requirements of Small Ruminants? with or without 15% CP and TDN restriction. The early-maturity diet, independent of restriction, resulted in greater dry matter and organic matter intake and increased rumination efficiency and feed conversion. Early-maturity diets also had the greatest nutrient digestibility as well as ADG and total gains. With late-maturity diets, independent of restriction, there were greater CP and TDN digestibilities as well as neutral detergent fiber (NDF) feed efficiency. However, when 15% of nutrients were restricted for late-maturity lamb diets, there was greater NDF intake and greater ether extract digestibility. Unrestricted early-maturity lamb diets was the better diet for confined Morada Nova lambs. Attention should be given to minimum effective NDF consumed and physically effective for this diet formulation. The use of late-maturity diets as recommended by NRC (2007) allows for 15% restriction of CP and TDN in Morada Nova lambs without negative effects on performance. This restriction should be tested in other tropical breeds to determine wider application.
Palavras-Chave: | Brasil; Diet adjustment; Feed conversion efficiency; Feed restriction; Lamb finishing; Nutritional parameters; Restrição alimentar; Semiárido.
Thesagro: | Cordeiro; Dieta; Digestibilidade; Eficiência Nutricional; Nutrição Animal; Ovino.
Thesaurus Nal: | Animal nutrition; Brazil; Dietary restriction; Early development; Lamb feeding; Nutritional support; Ruminant nutrition; Semiarid zones; Sheep feeding.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Meio-Norte (CPAMN)

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