DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4995/wrs.2014.1501 http://hdl.handle.net/11449/112368 |
Resumo: | Two experiments were conducted to evaluate the use of cassava root meal (891 g dry matter [DM]/kg, 639 g starch/kg, 74.1 g neutral detergent fibre [NDF]/kg, and 26.6 g crude protein [CP]/kg) in diets for growing rabbits. In the first experiment, a basal diet (419 g NDF/kg and 181 g CF/kg) and a test diet, in which cassava replaced 25% of the DM of the reference diet, were used. Twenty 50-d-old New Zealand White rabbits weighing 1474 +/- 10 g were randomly assigned to the 2 treatments, and digestibility of DM and gross energy (GE) were determined. The inclusion of cassava root meal in the diet increased DM digestibility (67.0 +/- 0.80 vs. 58.0 +/- 1.12%, P<0.01) and digestible energy (DE) content (11.86 +/- 0.16 vs. 10.45 +/- 0.22 MJ/kg, P<0.01). Digestible DM and DE contents of the unpeeled cassava root meal, obtained by the substitution method, were 943.3 +/- 15.8 g/kg and 15.28 +/- 0.32 MJ/kg. In the second experiment, 5 experimental diets were formulated to contain 150 g CF/kg, 184 g acid detergent fibre/kg and 10.9 MJ DE/kg, and increasing levels (0, 7, 14, 21 and 28%) of unpeeled cassava root meal, mainly in substitution of corn. A growth trial was carried out using 90 rabbits from the Botucatu genetic group from weaning (35 d, weighing 951 13 g) up to 71 d of age. The rabbits were housed in pairs, and randomly assigned to the 5 treatments (9 replicates/ treatment). No effect of the substitution of corn with cassava root meal was detected on growth performance (growth rate, feed intake and feed conversion ratio, on ay. 44.6 +/- 0.50 g/d, 132 +/- 1.4 g/d and 2.97 +/- 0.028 g/g, respectively). The level of inclusion of cassava root meal had a quadratic effect (P=0.005) on the dressing out percentage, showing a minimal value (51.2%) for inclusion of 139 g/kg. No other effect was observed on slaughter and reference carcass weights (2383 19 and 1238 11 g, respectively). Unpeeled cassava root meal may be used to completely replace corn in the diet, supporting high performance in growing rabbits, but its effects on carcass traits should be investigated further. |
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DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITSdigestibilitygrowth performanceManihot esculentaTwo experiments were conducted to evaluate the use of cassava root meal (891 g dry matter [DM]/kg, 639 g starch/kg, 74.1 g neutral detergent fibre [NDF]/kg, and 26.6 g crude protein [CP]/kg) in diets for growing rabbits. In the first experiment, a basal diet (419 g NDF/kg and 181 g CF/kg) and a test diet, in which cassava replaced 25% of the DM of the reference diet, were used. Twenty 50-d-old New Zealand White rabbits weighing 1474 +/- 10 g were randomly assigned to the 2 treatments, and digestibility of DM and gross energy (GE) were determined. The inclusion of cassava root meal in the diet increased DM digestibility (67.0 +/- 0.80 vs. 58.0 +/- 1.12%, P<0.01) and digestible energy (DE) content (11.86 +/- 0.16 vs. 10.45 +/- 0.22 MJ/kg, P<0.01). Digestible DM and DE contents of the unpeeled cassava root meal, obtained by the substitution method, were 943.3 +/- 15.8 g/kg and 15.28 +/- 0.32 MJ/kg. In the second experiment, 5 experimental diets were formulated to contain 150 g CF/kg, 184 g acid detergent fibre/kg and 10.9 MJ DE/kg, and increasing levels (0, 7, 14, 21 and 28%) of unpeeled cassava root meal, mainly in substitution of corn. A growth trial was carried out using 90 rabbits from the Botucatu genetic group from weaning (35 d, weighing 951 13 g) up to 71 d of age. The rabbits were housed in pairs, and randomly assigned to the 5 treatments (9 replicates/ treatment). No effect of the substitution of corn with cassava root meal was detected on growth performance (growth rate, feed intake and feed conversion ratio, on ay. 44.6 +/- 0.50 g/d, 132 +/- 1.4 g/d and 2.97 +/- 0.028 g/g, respectively). The level of inclusion of cassava root meal had a quadratic effect (P=0.005) on the dressing out percentage, showing a minimal value (51.2%) for inclusion of 139 g/kg. No other effect was observed on slaughter and reference carcass weights (2383 19 and 1238 11 g, respectively). Unpeeled cassava root meal may be used to completely replace corn in the diet, supporting high performance in growing rabbits, but its effects on carcass traits should be investigated further.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Inst Ciencia Anim, San Jose De Las Lajas, Mayabeque, CubaUniv Estadual Paulista, UNESP, Fac Med Vet & Zootecnia, Dept Anim Prod, BR-18618970 Botucatu, SP, BrazilUniv Estadual Maringa, Dept Zootecnia, BR-87020900 Maringa, Parana, BrazilUniv Estadual Paulista, UNESP, Ctr Raizes & Amidos Tropicais, BR-18610307 Botucatu, SP, BrazilUniv Estadual Paulista, UNESP, Fac Med Vet & Zootecnia, Dept Anim Prod, BR-18618970 Botucatu, SP, BrazilUniv Estadual Paulista, UNESP, Ctr Raizes & Amidos Tropicais, BR-18610307 Botucatu, SP, BrazilCAPES: 107/10 CAPES/MES-CubaUniv Politecnica ValenciaInst Ciencia AnimUniversidade Estadual Paulista (Unesp)Univ Estadual MaringaMora, L. M.Moura, Ana Silvia Alves Meira Tavares [UNESP]Scapinello, C.Bicudo, S. J. [UNESP]Araujo, I. G.Curcelli, F. [UNESP]Barros, T. F. M. [UNESP]2014-12-03T13:10:39Z2014-12-03T13:10:39Z2014-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article105-111application/pdfhttp://dx.doi.org/10.4995/wrs.2014.1501World Rabbit Science. Valencia: Univ Politecnica Valencia, v. 22, n. 2, p. 105-111, 2014.1257-5011http://hdl.handle.net/11449/11236810.4995/wrs.2014.1501WOS:000337719000002WOS000337719000002.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengWorld Rabbit Science0.6610,433info:eu-repo/semantics/openAccess2024-09-09T13:01:50Zoai:repositorio.unesp.br:11449/112368Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T13:01:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
title |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
spellingShingle |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS Mora, L. M. digestibility growth performance Manihot esculenta |
title_short |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
title_full |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
title_fullStr |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
title_full_unstemmed |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
title_sort |
DIGESTIBLE ENERGY OF UNPEELED CASSAVA ROOT MEAL AND ITS EFFECT ON GROWTH PERFORMANCE AND CARCASS TRAITS IN RABBITS |
author |
Mora, L. M. |
author_facet |
Mora, L. M. Moura, Ana Silvia Alves Meira Tavares [UNESP] Scapinello, C. Bicudo, S. J. [UNESP] Araujo, I. G. Curcelli, F. [UNESP] Barros, T. F. M. [UNESP] |
author_role |
author |
author2 |
Moura, Ana Silvia Alves Meira Tavares [UNESP] Scapinello, C. Bicudo, S. J. [UNESP] Araujo, I. G. Curcelli, F. [UNESP] Barros, T. F. M. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Inst Ciencia Anim Universidade Estadual Paulista (Unesp) Univ Estadual Maringa |
dc.contributor.author.fl_str_mv |
Mora, L. M. Moura, Ana Silvia Alves Meira Tavares [UNESP] Scapinello, C. Bicudo, S. J. [UNESP] Araujo, I. G. Curcelli, F. [UNESP] Barros, T. F. M. [UNESP] |
dc.subject.por.fl_str_mv |
digestibility growth performance Manihot esculenta |
topic |
digestibility growth performance Manihot esculenta |
description |
Two experiments were conducted to evaluate the use of cassava root meal (891 g dry matter [DM]/kg, 639 g starch/kg, 74.1 g neutral detergent fibre [NDF]/kg, and 26.6 g crude protein [CP]/kg) in diets for growing rabbits. In the first experiment, a basal diet (419 g NDF/kg and 181 g CF/kg) and a test diet, in which cassava replaced 25% of the DM of the reference diet, were used. Twenty 50-d-old New Zealand White rabbits weighing 1474 +/- 10 g were randomly assigned to the 2 treatments, and digestibility of DM and gross energy (GE) were determined. The inclusion of cassava root meal in the diet increased DM digestibility (67.0 +/- 0.80 vs. 58.0 +/- 1.12%, P<0.01) and digestible energy (DE) content (11.86 +/- 0.16 vs. 10.45 +/- 0.22 MJ/kg, P<0.01). Digestible DM and DE contents of the unpeeled cassava root meal, obtained by the substitution method, were 943.3 +/- 15.8 g/kg and 15.28 +/- 0.32 MJ/kg. In the second experiment, 5 experimental diets were formulated to contain 150 g CF/kg, 184 g acid detergent fibre/kg and 10.9 MJ DE/kg, and increasing levels (0, 7, 14, 21 and 28%) of unpeeled cassava root meal, mainly in substitution of corn. A growth trial was carried out using 90 rabbits from the Botucatu genetic group from weaning (35 d, weighing 951 13 g) up to 71 d of age. The rabbits were housed in pairs, and randomly assigned to the 5 treatments (9 replicates/ treatment). No effect of the substitution of corn with cassava root meal was detected on growth performance (growth rate, feed intake and feed conversion ratio, on ay. 44.6 +/- 0.50 g/d, 132 +/- 1.4 g/d and 2.97 +/- 0.028 g/g, respectively). The level of inclusion of cassava root meal had a quadratic effect (P=0.005) on the dressing out percentage, showing a minimal value (51.2%) for inclusion of 139 g/kg. No other effect was observed on slaughter and reference carcass weights (2383 19 and 1238 11 g, respectively). Unpeeled cassava root meal may be used to completely replace corn in the diet, supporting high performance in growing rabbits, but its effects on carcass traits should be investigated further. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-03T13:10:39Z 2014-12-03T13:10:39Z 2014-04-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4995/wrs.2014.1501 World Rabbit Science. Valencia: Univ Politecnica Valencia, v. 22, n. 2, p. 105-111, 2014. 1257-5011 http://hdl.handle.net/11449/112368 10.4995/wrs.2014.1501 WOS:000337719000002 WOS000337719000002.pdf |
url |
http://dx.doi.org/10.4995/wrs.2014.1501 http://hdl.handle.net/11449/112368 |
identifier_str_mv |
World Rabbit Science. Valencia: Univ Politecnica Valencia, v. 22, n. 2, p. 105-111, 2014. 1257-5011 10.4995/wrs.2014.1501 WOS:000337719000002 WOS000337719000002.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
World Rabbit Science 0.661 0,433 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
105-111 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Politecnica Valencia |
publisher.none.fl_str_mv |
Univ Politecnica Valencia |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
repositoriounesp@unesp.br |
_version_ |
1810021347573628928 |