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<p>The objective was to determine the optimum level of buffel grass hay (<i>Cenchrus ciliaris</i> L.) as a source of physically effective fiber in diets with high proportions of forage cactus on the bioeconomic performance of sheep finished in a dryland feedlot. A completely randomized experimental design was employed, consisting of four treatments and ten replications, with treatments defined by the levels of buffel grass hay (45, 30, 15, and 7.5% of buffel grass hay in the diet’s dry matter). A quadratic effect was noted for intakes of organic matter, dry matter, crude protein, ether extract, neutral detergent fiber, non-fibrous carbohydrates, total carbohydrates, total digestible nutrients, and metabolizable energy, with maximum intakes estimated at 35, 42, 23, 20, 25, 10, 25, and 24% of buffel grass hay, respectively. A linear effect was observed for all apparent digestibility variables. A quadratic effect was identified for final weight, total gain, and average daily gain, with maximum gains estimated by the regression model at levels of 27, 27, and 28% buffel grass hay, respectively. Based on productive performance and net income achieved in feedlot, the inclusion of 30% buffel grass hay in diets with high proportions of forage cactus is recommended for sheep in the feedlot.</p>

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Determining the optimal level of buffel grass hay as a source of physically effective fiber in a diet with high proportions of forage cactus for sheep finished in the feedlot

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月11日

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  • Diego Francisco Oliveira Coelho,
  • Juliana Silva de Oliveira,
  • João Paulo de Farias Ramos,
  • Danillo Marte Pereira,
  • Alberto Jefferson da Silva Macêdo,
  • Celso José Bruno de Oliveira,
  • Mateus Lacerda Pereira Lemos,
  • Nelquides Braz Viana,
  • Paloma Gabriela Batista Gomes,
  • Guilherme Medeiros Leite,
  • Edson Mauro Santos

摘要

The objective was to determine the optimum level of buffel grass hay (Cenchrus ciliaris L.) as a source of physically effective fiber in diets with high proportions of forage cactus on the bioeconomic performance of sheep finished in a dryland feedlot. A completely randomized experimental design was employed, consisting of four treatments and ten replications, with treatments defined by the levels of buffel grass hay (45, 30, 15, and 7.5% of buffel grass hay in the diet’s dry matter). A quadratic effect was noted for intakes of organic matter, dry matter, crude protein, ether extract, neutral detergent fiber, non-fibrous carbohydrates, total carbohydrates, total digestible nutrients, and metabolizable energy, with maximum intakes estimated at 35, 42, 23, 20, 25, 10, 25, and 24% of buffel grass hay, respectively. A linear effect was observed for all apparent digestibility variables. A quadratic effect was identified for final weight, total gain, and average daily gain, with maximum gains estimated by the regression model at levels of 27, 27, and 28% buffel grass hay, respectively. Based on productive performance and net income achieved in feedlot, the inclusion of 30% buffel grass hay in diets with high proportions of forage cactus is recommended for sheep in the feedlot.