Viabilidade econômica do uso da glicerina bruta em dietas para cordeiros terminados em confinamento

Barros, Mauriceia Costa Carvalho; Marqués, Jair de Araújo; Silva, Robério Rodrigues; Silva, Fabyano Fonseca e; Costa, Lucas Teixeira; Guimarães, Gilmara Santos; Silva, Luciano Lemos da; Gusmão, José Joaquim Nunes

doi:10.5433/1679-0359.2015v36n1p443

Cited by 8 publications

(7 citation statements)

References 3 publications

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“…In this activity, confinement is being considered as a viable alternative by allowing an intensification of animal production that is associated with reduced time to produce housing in term of the quantity and quality required by the market and accelerated returns on the capital employed (BARROS et al, 2015;REGO et al, 2015). In this production system, the fact is that conventional food concentrates, such as corn and soybean meal, are crucial for the rise in costs of confinement (XENOFONTE et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Carcass and non-carcass component characteristics of lambs fed with cassava wastewater dregs in replacement of corn

Cardoso

Véras

Carvalho

et al. 2016

SCA

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The objective was to evaluate the effect of the substitution (0, 33, 66 and 100%) of corn by cassava wastewater dregs on carcass characteristics and non-carcass components of crossbred Santa Inês lambs. Forty male sheep, uncastrated with an average initial body weight of 20 ± 1.87 kg and five months of age, were used. These were housed in individual pens in a randomized block design with four treatments and ten repetitions and slaughtered after 70 days of confinement. Quadratic effect (P<0.05) was observed for the empty body weight (EBW), hot carcass weight (HCW) and cold carcass weight (CCW) and carcass compactness index (CCI), with maximum points of 36.14, 19.45, 20.20 and 0.31 kg cm -1 for the replacement level of corn for cassava wastewater dregs, 50.0, 53.84, 54.04 and 45.45% respectively. There was also an effect (P<0.05) on the weights of the rumen and "Buchada", with maximum points of 0.909 and 6.25 kg per replacement level, 49.11 and 51.29% respectively. As for retail cuts, only the efficiency of the leg was altered (P<0.05), having a linear increase while the other variables were not affected. Cassava wastewater dregs can be used in full as an alternative food in the diet of feedlot lambs without harming the main carcass characteristics and non-carcass components. Key words: Alternative food. Meat. Organs. Cassava. Sheep. ResumoObjetivou-se avaliar o efeito da substituição (0, 33, 66 e 100%) do milho pela borra de manipueira sobre as características de carcaça e componentes não-carcaça de cordeiros mestiços Santa Inês. Foram utilizados quarenta ovinos machos não castrados, com peso corporal inicial médio de 20 ± 1,87 kg e cinco meses de idade. Estes foram confinados em baias individuais, em delineamento em blocos ao acaso, com quatro tratamentos e dez repetições, e abatidos após 70 dias de confinamento. Efeito quadrático (p<0,05) foi observado para o peso do corpo vazio (PCV), peso de carcaça quente (PCQ) e fria (PCF) e o índice de compacidade da carcaça (ICC), as mesmas apresentaram pontos de máxima de 36,14; 19,45; 20,20 e 0,31kg cm -1 ao nível de substituição do milho pela borra de manipueira de 50,0; 53,84; 54,04 e 45,45%, respectivamente. Também houve efeito (p<0,05) sobre os pesos do rúmen e da buchada, com ponto de máxima de 0,909 e 6,25 kg ao nível de substituição de 49,11 e 51,29%, respectivamente. Quanto aos cortes comerciais, apenas o rendimento da perna foi alterado (p<0,05) apresentando efeito linear crescente. Enquanto as demais variáveis não foram afetadas. A borra de manipueira pode ser utilizada de forma integral como alternativa alimentar na dieta de cordeiros em confinamento, sem prejudicar as principais características da carcaça e os componentes não-carcaça.

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Section: Introductionmentioning

confidence: 99%

Carcass and non-carcass component characteristics of lambs fed with cassava wastewater dregs in replacement of corn

Cardoso

Véras

Carvalho

et al. 2016

SCA

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“…Food changeover was higher for the confined group with 21% crude glycerin, although its major consumption for weight gain means did not affect the final gross margin (R$34.01 per animal) in this diet (Table 6). Barros et al (2015) also found positive results from the inclusion of glycerin in animals' diet (0, 2.65, 5.33, 8.06 and 10.84%) when they checked the economic feasibility of using it in confined lamb feed. However, these animals did not present satisfying performances, they had less salable meat.…”

Section: Resultsmentioning

confidence: 93%

Development, economic viability and attributes of lamb carcass from confined animals fed on different amounts of crude glycerin

et al. 2015

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The current study aims to assess the effect from crude glycerin inclusion (0, 7, 14, and 21% dry matter) in the diet of slaughtered lamb on their development, nutrient consumption, biometrical measures, diet economic viability and carcass features. Thirty two (32) non-castrated male Texel lambs were used in the study, they presented mean initial weight 15.9 ± 4.1 kilos and were distributed in casual outlining. They were fed with four treatments, with 8 repetitions. Animals were slaughtered when they reached approximately 35 kilos. The mean total weight gain was 20.72 kilos and mean daily weight gain was 260 grams. No changes resulted from glycerin use. The carcass performance was similar among treatments (P>0.05) and the cold carcass performance (CCP) was 44.68%. There were no effects (P>0.05) on the loin eye area (LEA) and on fat thickness (FT); they showed averages of 13.66 cm2 and 0.84 mm, respectively. Nutrition cost per animal during the whole confinement period varied between R$82.60 (eighty-two Reais and forty-eight cents) to R$92.48. The smallest nutrition amount consisted of 21% crude glycerin. The gross profit ranged from R$30.75 to R$ 34.01 per animal, for feed without glycerin and 21% glycerin, respectively. Animal development was not impacted by glycerin introduction, even with decrease on dry and organic mass consumption. The result showed that crude glycerin inclusion might be used in lambs’ diet. Whenever there are big amounts of feed involved in the process, the 21% crude glycerin addition may be an interesting cost reduction. Seventy eight percent (78%) glycerol crude glycerin to replace corn-based feed in confined lambs’ diet appeared to be nutritionally and economically viable.

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“…Factors such as the chemical composition of NDF (lignin type and content and their physical-chemical interaction with the other components), dimension of potentially degradable (NDFpd) and undegradable (NDFi) fractions, initial size, density, and fragility of particles, as well as the ruminal microbial activity should be considered as directly affecting the parameters of degradation and transit dynamics through the digestive tract, which modulate the effects of NDF on the consumption and digestion of nutrients (Lund et al 2007). Barros et al (2015), Lage et al (2014), andGunn et al (2010) found negative linear responses over the DM intake in lambs, evaluating CG inclusions of up to 10.84, 12, and 20 % of the diet, respectively. Moreover, Souza et al (2015) reported increases in DM, EE, and NDFap intake with the inclusion of 60 g CG/kg DM in the diet of lambs in confinement.…”

Section: Discussionmentioning

confidence: 99%

Crude glycerin combined with sugar cane silage in lamb diets

Filho

Azevêdo

Carvalho

et al. 2015

Trop Anim Health Prod

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This study aimed to evaluate the effect of the level of crude glycerin (CG) on in vitro fermentation kinetics (0, 20, 40, 60, and 80 g/kg DM of sugar cane silage), on in vitro neutral detergent fiber (NDF) degradation (0, 30, 60, and 90 g/kg DM of sugar cane silage), and intake and digestibility of nutrients and nitrogen balance (0, 20, 55, 82, and 108 g/kg DM of sugar cane silage) in lambs. The in vitro trials were conducted in a completely randomized design with three repetitions. The in vivo trial was conducted in a Latin square design with five repetitions (5 × 5). For variables in which the F test was considered significant, the statistical interpretation of the effect of CG substitution levels was carried out through regression analyses. Kinetic parameters were not affected by CG inclusion. On in vitro NDF degradation, a significant effect of CG levels was observed on the potentially degradable fraction of NDF, the insoluble potentially degradable fraction of NDF, and the undegradable NDF fraction. The intake and digestibility of nutrients and nitrogen balance were not affected by CG inclusion. The CG levels change in vitro NDF degradability parameters; however, there were no changes in animal intake, digestibility, and nitrogen balance with the inclusion levels used.

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Viabilidade econômica do uso da glicerina bruta em dietas para cordeiros terminados em confinamento

Cited by 8 publications

References 3 publications

Carcass and non-carcass component characteristics of lambs fed with cassava wastewater dregs in replacement of corn

Carcass and non-carcass component characteristics of lambs fed with cassava wastewater dregs in replacement of corn

Development, economic viability and attributes of lamb carcass from confined animals fed on different amounts of crude glycerin

Crude glycerin combined with sugar cane silage in lamb diets

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