• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Desempenho de novilhos Nelore confinados alimentados com óleo de linhaça in natura ou protegido

Carvalho, Victor Galli [UNESP] 28 March 2014 (has links) (PDF)
Made available in DSpace on 2015-01-26T13:21:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-03-28Bitstream added on 2015-01-26T13:31:00Z : No. of bitstreams: 1 000802708.pdf: 792571 bytes, checksum: 790670990644774ddc4959f5c4b9fefa (MD5) / Objetivou-se avaliar o desempenho, as características da carcaça, o desenvolvimento corporal, as medidas corporais e ultrassônicas de 35 novilhos Nelore, com 18 meses de idade e 397,74 ± 14,07 kg de peso corporal, alimentados com uma dieta com 60% de concentradoe silagem de milho e com óleo de linhaça protegido (OLiP) da degradação ruminal durante 35, 70 ou 105 dias antes do abate, com esse óleo in natura durante 105 dias ou sem adição de óleo (73% de NDT e 2,9% de EE). As dietas com óleo foram isoenergéticas (76% de NDT e 6,1% de EE), sendoque a adição do óleo in natura e protegido foi de 3,4 e 4,5% da MS, respectivamente. O delineamento experimental foi em blocos ao acaso, e os resultados avaliados por modelo misto, sendo os tratamentos comparados por contrastes não ortogonais;as medidas foram correlacionadas às características de carcaça por análise de Pearson. Não houve diferença entre os tratamentos para eficiência alimentar (0,132 kg MS ingerida/kg ganho de peso), ganho de peso diário (1,24 kg) e peso corporal final (522,71 ± 27,99 kg), rendimentos da carcaça (57%) e de cortes cárneos totais(68,7%).A adição de óleo de linhaça na dieta aumentou(P<0,05) a ingestão de extrato etéreo; peso da gordura renal-pélvica-inguinal,dos cortescupim, alcatra+maminha, picanha, fraldãoe do retalho gordo; rendimento docupim, alcatra+maminha e do retalho gordo; e diminuiu o crescimento diário e o comprimento dorso-lombar finalem relação ao tratamento sem adição de óleo. Comparado ao óleo de linhaça in natura,o OLiPfornecido durante os 105 dias de confinamento proporcionouaos animais (P<0,05)menor ingestão de extrato etéreo e maior rendimento do lagarto, aumento do crescimento diário e do perímetro torácico final. Os diferentes tempos de fornecimento do OLiP aumentaram (P<0,05) a ingestão de extrato etéreo; alteraram opesodos rins, da gordura ... / The objective was to evaluate the performance, carcass characteristics, body growth, measurements of body and ultrasonic of 35 Nellore steers, with 18 month-old, and 397.74 ± 14.07 kg of body weight fed with 60% concentrated and corn silage and with protected linseed oil (PLO) of rumen degradation during 35, 70 or 105 days before slaughter, with oil in natura during 105 days or with no oil (73% of TDN and 2.9% of EE). The diets with oil were isoenergetic (76% of TDN and 3.1% of EE), whereas the addition of in natura and protected oil was 3.4 and 4.5% of DM, respectively. The experimental design was a randomized block, and the results were evaluated by mixed model and treatments were compared by non orthogonal contrasts. The measures were correlated with carcass traits by Pearson’s analysis. There was no difference between treatments for feed efficiency (0.132 kg DM intake/kg weight gain), daily weight gain (1.24 kg), final body weight (522.71 ± 27.99 kg), yields of carcass (57%) and total meat cuts (68.7%). The addition of linseed oil in the diet increased (P<0.05) the ether extract intake, weights of kidney-pelvic-inguinal fat, hump, top sirloin butt + bottom sirloin butt, inner skirt steak cuts and fat trimmings; the yield of hump, top sirloin butt + bottom sirloin butt and fat trimmings; and decreased daily growth and final width of chest, compared with treatment without oil. Compared to in natura linseed oil, the PLO provided during the 105 days of feedlot caused (P<0.05) lower ether extract intake and an increase in eye of round yield, daily growth and final chest girth. The increasing durations of PLO supplementation increased (P<0.05) ether extract intake; altered the weights of the kidneys, kidney-pelvic-inguinal fat, fat trimmings and bones in the carcass; the yields of eye of round and bones; and the final pelvic contour of animals. With the exception of width of chest, all body ...

Page generated in 0.0858 seconds