Porcentagem de proteína em suplementos para ovinos mantidos em pasto de capim-aruana na época seca

Ribeiro, Patricia; Cabral, Luciano Silva; Zervoudakis, Joanis Tilemahos; Miranda, Leandro; Abreu, Joadil Gonçalves de; Rodrigues, Rosane Cláudia; Morenz, Mirton José Frota; Oliveira, Ísis Scatolin de; Toledo, C.L.B.

doi:10.1590/1678-5357

Cited by 8 publications

(8 citation statements)

References 9 publications

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“…Ribeiro (2008) suplementando animais a 1,0% do PC em pastagens de capim Aruana irrigado, com aproximadamente 9,0% de PB na forragem encontrou GMD de 0,121 kg animal dia -1 para os animais suplementados com 20,0% de PB no suplemento, com ganho diferencial em relação à mistura mineral de 0,096 g animal dia -1…”

Section: Resultsunclassified

“…O GMD encontrado por Ribeiro (2008) foi 50% superior aos encontrados nesse estudo, sendo este resultado atribuído ao baixo potencial genético dos animais e ao efeito substitutivo, que para ovinos se faz presente a partir de fornecimento de suplementos acima de 0,5% do PC em suplementos e é tanto maior quanto for a qualidade forragem pastejada pelos animais.…”

Section: Resultsunclassified

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Suplementos para terminação de ovinos em pastos de Brachiaria brizantha cv. Marandu

et al. 2015

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ResumoObjetivou-se avaliar a suplementação sobre a resposta produtiva, os parâmetros nutricionais e o custo de produção de ovinos em pasto de Brachiaria brizantha cv. Marandu. O experimento teve duração de 84 dias, e foram utilizadas 20 cordeiras deslanadas sem raça definida com idade e peso corporal inicial de quatro meses e 21,73 kg, além de quatro animais canulados no rúmen com 12 meses e 55,00 kg de peso corporal, distribuídos em quatro piquetes de 0,1 ha providos de bebedouros e cochos, em que foram avaliados os seguintes tratamentos: mistura mineral, farelo de soja, grão de soja e caroço de algodão. Foram observados ganhos de peso médio diário de 0,061; 0,080; 0,060 e 0,080 kg dia -1 , respectivamente, para a mistura mineral, farelo de soja, grão de soja e caroço de algodão. Os valores médios de pH ruminal foram 6,16; 6,18; 6,25 e 6,23, respectivamente, para os suplementos mineral, farelo de soja, grão de soja e caroço de algodão e os valores para nitrogênio amoniacal ruminal foram 11,10; 24,77; 22,31 e 29,37 mg dL -1 de líquido ruminal, respectivamente, para suplementos mineral, farelo de soja, grão de soja e caroço de algodão. Os suplementos farelo de soja e caroço de algodão aumentaram o ganho de peso em 8,75%, em relação, aos animais mantidos apenas com mistura mineral, diminuindo a idade ao abate dos animais. Palavras-chave: Ganho de peso, nitrogênio amoniacal, nitrogênio ureico, pH, suplementação AbstractThe objective was to evaluate the supplementation on the productive response, nutritional parameters and the cost of production of sheep grazing grass Marandu. The experiment lasted 84 days and 20 lambs were used with age and initial body weight of 21.73 kg and four months, as well four rumen fitted sheep of 12 months and 55.00 kg of body weight, divided into four paddocks of 0.1 ha provided, with water and supplements dispenser, to evaluated the following treatments: mineral mix, soybean meal, soybean seed and cottonseed whole. For the average daily gain observed were of 0.061, 0.080, 0.060 and 0.080

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Section: Resultsunclassified

Suplementos para terminação de ovinos em pastos de Brachiaria brizantha cv. Marandu

et al. 2015

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“…IBW = initial body weight, FBW = final body weight, TWG = total weight gain, ADG = average daily gain, DWG = differential weight gain related to mineral mixture and average supplement intake (ASI). Ribeiro (2008) observed that as a result of higher total dry matter intake, supplemented animals had a better performance (88 g animal day -1 ) compared to animals fed only with mineral mixture (25 g animal day -1 ). However, it should be noted that this author did not observe weight loss in animals receiving mineral mixture and also reported that supplementation with 23% CP led to a higher animal weight gain.…”

Section: Resultsmentioning

confidence: 93%

“…Working with sheep in an Aruana grass pasture fed with supplements containing 15%, 20%, 25% and 30% CP provided at 1.0% of BW, Ribeiro (2008) observed a decrease in grazing time and increase in idleness time for supplemented animals compared to those receiving only mineral mixture.…”

Section: Resultsmentioning

confidence: 94%

“…It was observed that supplementation at 1.0% of animal BW led to lower values of FDMI, which can be attributed to the substitution effect of forage grass by the supplement, confirmed by the higher value of the substitution coefficient calculated for forage by supplement (SUBCF) in the above treatments. For forage intake, Ribeiro (2008) 1 Coefficient of forage replacement (g forage per g supplement); Means followed by the same letter at line do not differ by SNK test at 5% probability; CV = coefficient of variation; MM = Mineral mixture; BW = body weight; CP = crude protein; DMI = dry matter intake (g animal day -1 ) FDMI = total dry matter intake (% of body weight); FDMI = forage intake (g animals day -1 ); FDMIBW = forage intake (% of body weight); CFRS = coefficient of forage replacement by supplement; DMAD = coefficient of dry matter apparent digestibility.…”

Section: Resultsmentioning

confidence: 99%

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Bio-economic assessment of sheep supplementation in marandu palisadegrass pastures

Miranda¹,

Cabral

Carvalho

et al. 2017

SCA

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Goal was to evaluate the effect of mineral and/or energy-protein supplementation on intake, behavior, production response, pH, rumen ammonia and production cost of sheep. Twenty female lambs and five rumen-cannulated lambs were used to test supplementation effects on weight gain and nutritional characteristics, respectively. Treatments evaluated were: mineral mixture, supplement with 20 and 25% of crude protein offered at 0.5 and 1.0% of body weight. Supplementation at 1.0% of body weight reduced forage intake. Average daily gain were: -58.33, -1.07, -9.53, 19.27 and 34.73 g day -1 per animal, for mineral mixture, supplements with 20 and 25% of crude protein supplied at 0.5% of body weight and 20 and 25% crude protein provided at 1.0% of body weight, respectively. Rumen pH for all supplements was maintained above 6.20. Values of rumen ammonia nitrogen were 5.10, 9.48, 11.54, 17.51 and 22.45 mg dL -1 for supplements: mineral mixture, 20 and 25% of crude protein provided at 0.5% of body weight and 20 and 25% of crude protein supplied at 1.0% of body weight, respectively. The best economic return was obtained with the supplement 25% of crude protein provided at 1.0% of body weight. Key words: Forage intake. Pasture. Rumen ammonia and pH. Weight gain. ResumoObjetivou-se com este estudo avaliar o efeito da suplementação mineral e/ou proteica energética no consumo, comportamento, resposta produtiva, pH e amônia ruminais e custo de produção de ovinos. Utilizaram-se 20 borregas e cinco borregos canulados no rúmen para avaliar os efeitos da suplementação sobre o ganho de peso e características nutricionais, respectivamente. Avaliaram-se os suplementos mistura mineral e suplementos com 20 e 25% de proteína bruta ofertados a 0,5 e 1,0% do peso corporal. A suplementação na proporção de 1,0% do peso corporal reduziu o consumo de forragem. Os ganhos médios diários foram de -58,33; -1,07; -9,53; 19,27 e 34,73 g animal dia -1 , para os suplementos mistura mineral, 20 e 25% de proteína bruta fornecidos a 0,5% do peso corporal e 20 e 25% de proteína bruta ofertados a 1,0% do peso corporal, respectivamente. O pH para todos os suplementos esteve acima de

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Endoparasite and nutritional status of Suffolk lambs in seven production systems

et al. 2018

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Lambs are the most susceptible category for parasite infections; therefore, the choice of the production system can influence nutritional status and reduce parasite infections. The present study aimed to evaluate the endoparasites and nutritional status of meat lambs in seven production systems. In the feedlot, they were (S1) early weaned lambs in feedlot and (S2) unweaned lambs in feedlot with controlled suckling. On pasture, they were (S3) early weaned lambs on pasture without supplementation, (S4) early weaned lambs on pasture with concentrate supplementation post-weaning, (S5) unweaned and unsupplemented lambs on pasture, (S6) unweaned lambs on pasture with concentrate supplementation and creep-feeding and (S7) unweaned lambs on pasture with free access to creep-grazing on white clover (Trifolium repens). Suffolk lambs (n = 132) were evaluated from 45 to 101 days of age, at 14-day intervals (0, 14, 28, 42 and 56 days). Parasite faecal egg count (FEC), FAMACHA score (FMC), average daily weight-gain and body condition score (BCS) were evaluated. The animals were treated with anthelmintics when they had FMC 3, 4 or 5 and/or FEC above 700. BCS and FEC (r = –0.361) and BCS and FMC variables (r = –0.313) were negatively correlated (P ≤ 0.01). FEC was lower in feedlot and in creep-feeding animals than in the other systems after the second evaluation (28 days). The weaned feedlot-lamb and controlled-suckling systems presented the best performance. On pasture, the animals in creep-feeding and creep-grazing had the best performance. Weaned and unsupplemented lambs on pasture had the lowest daily weight-gain (63 g/day) and the highest FMC scores (43% of animals) and the lowest BCS (mean 1.5). The endoparasite and nutritional statuses of the lambs were strongly correlated and were influenced by the production system, mainly when the ewes were present and the lambs received supplementation on pasture.

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Porcentagem de proteína em suplementos para ovinos mantidos em pasto de capim-aruana na época seca

Cited by 8 publications

References 9 publications

Suplementos para terminação de ovinos em pastos de Brachiaria brizantha cv. Marandu

Suplementos para terminação de ovinos em pastos de Brachiaria brizantha cv. Marandu

Bio-economic assessment of sheep supplementation in marandu palisadegrass pastures

Endoparasite and nutritional status of Suffolk lambs in seven production systems

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