Características de carcaça e carne de novilhos de diferentes predominâncias genéticas alimentados com dietas contendo níveis de substituição do grão de milho pelo grão de milheto

Silva, Rodrigo Medeiros da; Restle, João; Missio, Régis Luís; Bilego, Ubirajara Oliveira; Pacheco, Paulo Santana; Rezende, Pedro Leonardo de Paula; Fernandes, Juliano José de Resende; Silva, Alexey Heronville Heronville Gonçalves da; Pádua, João Teodoro

doi:10.5433/1679-0359.2015v36n2p943

Cited by 8 publications

(13 citation statements)

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“…The lack of variation for average daily gain, final body weight, and hot carcass weight between steers fed pearl millet-and corn-based diets (Table 7) was consistent with those observed in other studies (Gonçalves et al, 2010;Silva et al, 2014;Silva et al, 2015); in fact, most studies have demonstrated similar productive performance of animals fed diets containing corn grain and diets containing pearl millet grain. Moreover, the variation in feed conversion reflects the variation in the DM intake with increasing concentration of dietary BMB, which was also reported by Miotto et al (2013).…”

Section: Discussionsupporting

confidence: 79%

Feeding behavior and productive performance of steers fed pearl millet grain-based diets containing proportions of babassu mesocarp bran

et al. 2015

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-The objective of this study was to evaluate the feeding behavior and feedlot productive performance of dairy-origin steers fed for 84 days ground pearl millet grain-based diets with 0, 120, 240, 360, and 480 g kg -1 of babassu mesocarp bran (BMB) and a standard diet based on ground corn. Thirty Holstein-Zebu steers with average initial body weight of 371.02±27 kg were used. The experimental design was completely randomized, with five replications. Dry matter intake showed better fit with the quadratic regression equation with the inclusion of BMB, reaching a maximum value in diets with 360 g of this by-product. There was no difference for dry matter intake between pearl millet-and corn-based diets. There was no difference in total digestible nutrients intake between diets. The digestibility coefficient of organic matter decreased linearly with the increase in the dietary level of BMB. The digestibility coefficient of organic matter was not different between corn and millet diets. There was no difference in feeding time between diets. Total requirement of metabolizable energy increased linearly with inclusion of BMB. However, total requirements of metabolizable energy did not differ between the corn-and pearl millet-based diets. Average daily gain decreased linearly with the increase in BMB, with adjustment forced by the sharp decline of this variable in diets with 480 g of BMB. There was no difference in average daily gain between corn-and pearl millet-based diets. The inclusion of levels above 360 g of babassu mesocarp bran in pearl millet-based diets reduces the supply of metabolizable energy and the productive performance of feedlot dairy steers.

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Section: Discussionsupporting

confidence: 79%

Feeding behavior and productive performance of steers fed pearl millet grain-based diets containing proportions of babassu mesocarp bran

et al. 2015

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“…The results of this study were similar to those obtained by Miotto et al (2012a), who found a carcass muscular reduction from the reduction of cushion thickness to the increment of BMB level in the diet, but found no differences in longissimus dorsi area and carcass conformation. The results were also consistent with those obtained by Silva et al (2015), who found no change in conformation, longissimus dorsi area and thickness of bovine carcass fed with diets containing corn replacement levels for millet.…”

Section: Resultssupporting

confidence: 91%

“…From the results obtained and presented in the literature (MIOTTO et al, 2012a;CRUZ et al, 2015a), it is assumed that in addition to the BMB level in the diet, food nutritional characteristics (notably the energy content) replaced by BMB in the diet are keys factors affecting body development and consequently carcass weight of feedlot cattle. Further, the results obtained between corn-or millet-based diets for the cold carcass weight are consistent with those obtained by Silva et al (2015), who found no change in cattle carcass weight fed with varying millet levels (0, 33, 66, and 100%) replacing corn. Carcass yield was unchanged (P > 0.05) with increasing levels of BMB in the diet.…”

Section: Resultssupporting

confidence: 89%

“…In contrast with the results of Miotto et al (2012b), the results obtained in this study can be justified due to the lower levels of BMB used in diets. However, the results obtained for corn-or millet-based diets were consistent with the results obtained by Silva et al (2015), who despite not having evaluated the tissue composition of the carcass, found that the partial or total replacement of corn by millet did not change the carcass characteristics, which is indicative of the maintenance of body tissue deposition profile. The marbling of the meat was not influenced (P > 0.05) by the BMB level included in the diet, and did not differ among diets with BMB and diets with corn or millet, or between diets based on corn and millet (Table 6).…”

Section: Resultssupporting

confidence: 87%

“…Thereby, there was no effect of the feedlot diets on bone growth and carcass characteristics. Corroborating, Miotto et al (2012a) and Silva et al (2015) who found no change in the metric characteristics of carcasses fed with diets containing levels of BMB and millet, respectively.…”

Section: Resultsmentioning

confidence: 96%

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Carcass and meat characteristics from dairy-origin steers fed with diets based on ground pearl millet grain, containing inclusion levels of babassu mesocarp meal

et al. 2016

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This study aimed to evaluate carcass and meat characteristics of feedlot-finished steers of dairy origin fed with pearl millet grain-based diets, containing inclusion levels of babassu mesocarp bran (BMB) (0, 12, 24, 36 and 48%). A total of 30 Holstein-Zebu crossbred steers with an average initial weight of 371.02 ± 27 kg were randomly divided into six groups fed with different experimental diets (five pearl millet-based diets containing inclusion levels of BMB and one standard corn-based diet). Each diet had five replications. Isonitrogenous diets had a roughage/concentrate ratio of 20/80. BMB inclusion level in the diet reduced slaughter and carcass weight from 488.4 and 242.2 kg to 454.0 and 226.7 kg, respectively. The subcutaneous fat thickness, conformation, and pistol cut weight were also reduced to 38.8, 13.6, and 9%, respectively, as the BMB inclusion level in the diet increased. Meat characteristics were not affected by BMB inclusion levels in the diet. Regarding carcass and meat characteristics, no difference was observed in the analysis of contrasts between BMB diets and corn-or millet-based diets, or between corn-or millet-based diets. The inclusion of BMB in millet-based diets should consider the cost/benefit ratio, as it reduces slaughter and carcass weight, while the main meat characteristics remain unchanged. However, total substitution of corn by millet grains in feedlot diets does not alter caracteristics of carcass and meat of dairy steers. ResumoObjetivou-se avaliar as características da carcaça e carne de novilhos mestiços de origem leiteira terminados em confinamento com dietas a base de grãos de milheto, contendo níveis de inclusão de farelo do mesocarpo do babaçu (0, 12, 24, 36 e 48%). Foram utilizados 30 novilhos mestiços Holandês-Zebu com peso inicial médio de 371,02 ± 27 kg distribuídos aleatoriamente em seis dietas experimentais (cinco dietas a base de milho contendo níveis de inclusão de farelo do mesocarpo do babaçu e uma dieta padrão a base de milho), cada uma com cinco repetições. As dietas isonitrogenadas apresentam relação volumoso/concentrado de 20/80. O aumento do nível de inclusão do FMB na dieta reduziu o peso de abate e de carcaça de 488,4 e 242,2 kg para 454,0 e 226,7 kg, respectivamente. A espessura de gordura subcutânea, conformação e peso do traseiro especial reduziram, respectivamente, 38,8; 13,6 e 9% pelo aumento do nível de farelo do mesocarpo de babaçu na dieta. As características da carne não foram alteradas pelos níveis de inclusão de farelo do mesocarpo de babaçu na dieta. Não foi verificada diferença, pela análise de contrastes, entre as dietas com farelo do mesocarpo do babaçu e as dietas com milho ou milheto, ou entre as dietas a base de milho ou milheto para as características de carcaça e carne avaliadas. A inclusão de farelo do mesocarpo do babaçu em dietas a base de grão de milheto deve considerar a relação custo/benefício, pois promove queda do peso de abate e de carcaça apesar de não alterar as principais características da carne. A substituição...

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Economic analysis of the risk of replacing corn grains (Zea mays) with pearl millet grains (Pennisetum glaucum) in the diet of feedlot cattle

et al. 2020

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The goal of the present study was to assess the economic viability relating to the risk of replacing corn with pearl millet in diets with 80% concentration for feedlot cattle confined for 89 days. Replacement levels were: 0, 33, 66, and 100%. The risk was estimated using Monte Carlo simulation, Spearman’s rank correlation test between input variables, stochastic dominance, and analysis of sensitivity. The expected average values ± standard deviation for net present value (R$/animal) were ± 71.74 ± 283.32, 91.23 ± 285.18, 196.05 ± 273.79, and 223.80 ± 267.96 for diets containing 0, 33, 66, and 100% of pearl millet, respectively. The probability of ≥0 net present value was 63.4, 66.1, 78.4, and 82.4%, respectively. The net present values were statistically different (P<0.05), and the higher levels dominated the lower values. The items that most influenced the net present values were, in descending order, prices of unfinished and finished cattle, initial and final weights, prices of concentrate and forage, concentrate and forage consumption. Based on the results of the simulation, diet of 100% pearl millet exhibited the best economic viability.

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Características de carcaça e carne de novilhos de diferentes predominâncias genéticas alimentados com dietas contendo níveis de substituição do grão de milho pelo grão de milheto

Cited by 8 publications

References 12 publications

Feeding behavior and productive performance of steers fed pearl millet grain-based diets containing proportions of babassu mesocarp bran

Feeding behavior and productive performance of steers fed pearl millet grain-based diets containing proportions of babassu mesocarp bran

Carcass and meat characteristics from dairy-origin steers fed with diets based on ground pearl millet grain, containing inclusion levels of babassu mesocarp meal

Economic analysis of the risk of replacing corn grains (Zea mays) with pearl millet grains (Pennisetum glaucum) in the diet of feedlot cattle

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