Componentes de rendimento e características da carne e carcaça de novilhos confinados sob efeito do tamanho de partícula e da altura de colheita das plantas de milho na ensilagem

Neumann, Mikael; Restle, João; Mühlbach, Paulo Roberto Frenzel; Pellegrini, Luiz Giovani de; Falbo, Margarete Kimie; Sandini, Itacir Elói

doi:10.1590/s0103-84782008000200021

Cited by 3 publications

(4 citation statements)

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“…Cattle finished in feedlot and fed with a high protein-rich diet and high energetic density present high carcass weight (Abrahão et al, 2005;Dian et al, 2009;Maggioni et al, 2009). Neumann et al (2008) reported similar rates for feedlot Charolais young steers fed on different corn silage cuttings at two plant heights (15 or 39 cm) during silage. The rates abovementioned corroborate data by Maggioni et al (2009) for crossbred cattle at the same age and with the same genetic grade to those in this experiment and which were fed at a relation of 44% roughage (sorghum silage):56% concentrate.…”

Section: Resultsmentioning

confidence: 72%

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Corn silage with and without enzyme-bacteria inoculants on performance, carcass characteristics and meat quality in feedlot finished crossbred bulls

et al. 2012

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-Two height cuttings of corn silage with or without enzyme inoculants were evaluated for 68 days on performance, carcass characteristics, meat quality and chemical composition of the Longissimus muscle in crossbred bulls (F1 -½ Nellore vs. ½ Angus) finished in feedlot. Thirty-two 20-month-old bulls, with initial average weight of 374±25 kg, were kept in individual pens (10 m 2 ). Diets consisted of 50% roughage and 50% concentrate, with an expected 1.80 kg/day weight gain. The experimental design with four diets and eight replications was completely randomized. Different cutting heights, low (25 cm) and high (45 cm), with or without enzyme inoculants, were studied. Live weight, average daily gain, feed intake, feed efficiency, carcass characteristics, muscle, fat and bone percentages at the 11 th and 12 th ribs, chemical composition of the Longissimus muscle, sum of saturated, mono-unsaturated, poly-unsaturated fatty acids, n-3 fatty acids, n-6 fatty acids, and the poly-unsaturated:saturated and n-6:n-3 relations were determined. Cutting height of silage corn and the use of inoculants did not affect final live weight, average daily gain, feed intake, alimentary efficiency of dry matter, carcass characteristics, meat quality, chemical composition of the Longissimus muscle or fatty acid profile. High cutting of silage corn (45 cm above the ground) and the use of inoculants are not necessary in the case of cattle finished in feedlot, with 1.8 kg daily gain.

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Section: Resultsmentioning

confidence: 72%

“…Neumann et al (2008) failed to register any difference for the same factors for crossbred bulls finished in feedlot and fed on corn silage harvested at heights 15 or 38 cm. The characteristics above are only slightly modified through nutritional management.…”

Section: Resultsmentioning

confidence: 86%

Corn silage with and without enzyme-bacteria inoculants on performance, carcass characteristics and meat quality in feedlot finished crossbred bulls

et al. 2012

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“…Para os outros parâmetros de características de carcaça (espessura de gordura, rendimento e comprimento da carcaça, espessura de coxão, comprimento e perímetro de braço) também não houve variação estatística (p>0,05). Em experimento semelhante, não pode der observado diferença significativa para peso vivo de fazenda e para peso de carcaça quente, e obtiveram apenas diferenças significativas quanto ao perímetro de braço e rendimento de carcaça, em avaliação de silagens de milho em diferentes alturas de corte e tamanho de partículas (NEUMANN et al 2008).…”

Section: Resultsunclassified

“…Em estudo semelhante NEUMANN et al (2008) ao avaliar o uso de silagens de milho em diferentes alturas de corte e tamanho de partículas observaram alteração no peso do rúmen-retículo, sem alteração nos demais componentes não integrantes de carcaça. Segundo esses autores o tamanho dos órgãos vitais está relacionado ao consumo de alimentos, desempenho animal e às exigências energéticas para mantença, ou seja, no que se refere aos tratamentos utilizados no presente experimento, não há condições suficientes para que mudanças bruscas entre tratamentos fossem possíveis, visto que a variância entre dietas era mínima.…”

Section: Resultsunclassified

Dupla vedação em silagem de milho na produção de bovinos confinados

Neumann

Leão

Santos

et al. 2015

Rev. Ciênc. Agrovet.

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RESUMOO sucesso do sistema de produção de bovinos de corte tem como alicerce a produção de volumoso de qualidade, visto que impacta no maior ou menor desempenho produtivo dos animais e, consequentemente, no retorno econômico ao pecuarista. Nesse contexto, o objetivo do presente estudo foi avaliar o desempenho produtivo, comportamento ingestivo e características de carcaça e dos componentes não-carcaça de novilhos confinados recebendo silagem de milho submetida a dois tipos de vedação, sendo: VCsilagem de milho conservada com polietileno tipo dupla face com espessura de 110 μm (vedação convencional) e DVsilagem de milho conservada com polietileno tipo dupla face com espessura de 110 μm sobreposto a outro polietileno translúcido com espessura de 110 μm (dupla vedação). A determinação da relação volumoso concentrado revelou que o sistema com dupla vedação favoreceu a menor participação da fração concentrada neste tratamento (45,4 vs 48,3%) com consequente aumento no consumo de matéria seca diário e em relação ao peso vivo (10,04 vs 9,28 kg), (2,30 vs 2,21%), respectivamente, e aumento no ganho diário de peso vivo (1,810 vs 1,565 kg). Quanto a avaliação comportamental dos novilhos, aqueles que receberam silagem com sistema de dupla vedação passaram menos tempo em alimentação (3,52 vs 4,60 horas dia -1 ) e em ruminação (7,07 vs 7,94 horas dia -1 ) e mais tempo em ócio (13,22 vs 11,28 horas -1 ). Em relação as características de carcaça e os componentes não-integrantes de carcaça, não houve diferença estatística entre os tratamentos. Novilhos que receberam silagem com sistema de dupla vedação apresentaram melhor desempenho produtivo.PALAVRAS-CHAVE: consumo, características de carcaça, avaliação comportamental, ganho médio diário. ABSTRACTSystem production success of beef cattle is based on forage quality, since it impacts in greater or lesser way the performance and, consequently, on the economic return. In this context, the objective of the present study was to evaluate productive performance, ingestive behavior and carcass characteristics and the noncarcass components of confined steers receiving corn silage submitted to two types of sealing strategy: VC -corn silage preserved with polyethylene Double-sided with a thickness of 110 μm (conventional sealing) and DV -preserved corn silage with double-sided polyethylene with a thickness of 110 μm superimposed on another translucent polyethylene with a thickness of 110 μm (double sealing). The determination of forage concentrate ratio revealed that the double-sealed system favored the lower participation of the concentrated fraction in this treatment (45.4 vs 48.3%), with a consequent increase in daily dry matter intake (10,04 vs 9.28 kg), and in relation to live weight (2.30 vs 2.21%), and increase in average daily gain (1.810 vs 1.565 kg). As for behavioral evaluation, animals receiving double-sealing system silage spent less time feeding (3.52 vs 4.60 hours day -1 ) and rumination (7.07 vs 7.94 hours day -1 ), and more leisure time (13.22 vs 11.28 hours -1 ). Regarding...

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Carcass, meat quality traits, and economic analysis of Nellore bulls fed with finishing feedlot diets containing mechanically processed corn silage

Costa

Baldassini

Leal

et al. 2023

Trop Anim Health Prod

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Effects of mechanical processing (MP) of corn silage and its inclusion in feedlot diets on carcass and meat quality traits of Nellore (Bos indicus) were analyzed. Seventy-two bulls aged approximately 18 months and with an initial average body weight of 392.8 ± 22.3 kg were used. The experimental design was a 2 × 2 factorial arrangement, considering the concentrate-roughage (C:R) ratio (40:60 or 20:80), MP of silage and their interactions. After slaughter, hot carcass weight (HCW), pH, temperature, backfat thickness (BFT), and ribeye area (REA), yields of meat cuts (tenderloin, striploin, ribeye steak, neck steak, and sirloin cap), meat quality traits and economic analysis were evaluated. A lower nal pH was found in the carcasses of animals consuming diets containing MP versus unprocessed silage (pH = 5.81 versus 5.93). Carcass variables (HCW, BFT, and REA) and meat cut yields were not affected by treatments. The C:R 20:80 increased the intramuscular fat (IMF) content by approximately 1%, without affecting moisture, ash, and protein contents. Meat/fat color (L*, a* and b*) and Warner-Bratzler shear force (WBSF) were similar among treatments. The results indicated that the MP of corn silage in nishing diets can provide better carcass pH results in Nellore bulls, without negatively in uencing carcass weight, fatness and meat tenderness (WBSF). Better results on IMF content were obtained using a C:R 20:80 and lower total costs per arroba produced (3.5%), daily costs per animal/day (4.2%), and cost per ton of feeds (5.15%) were found with MP silage.

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Componentes de rendimento e características da carne e carcaça de novilhos confinados sob efeito do tamanho de partícula e da altura de colheita das plantas de milho na ensilagem

Cited by 3 publications

References 7 publications

Corn silage with and without enzyme-bacteria inoculants on performance, carcass characteristics and meat quality in feedlot finished crossbred bulls

Corn silage with and without enzyme-bacteria inoculants on performance, carcass characteristics and meat quality in feedlot finished crossbred bulls

Dupla vedação em silagem de milho na produção de bovinos confinados

Carcass, meat quality traits, and economic analysis of Nellore bulls fed with finishing feedlot diets containing mechanically processed corn silage

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