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<p>Tropical wheat cultivars can serve as an alternative to corn silage as a second-crop forage in the Cerrado region. This study aimed to evaluate the intake, digestibility, milk performance, and feeding behavior of crossbred Holstein × Gyr dairy cows fed diets containing increasing levels of wheat silage as a replacement for corn silage. Twelve cows with 518&#xa0;kg body weight and 10.89&#xa0;kg/day of milk production were used. The animals were distributed in three 4 × 4 Latin squares, balanced according to lactation stage. Treatments consisted of four levels of wheat silage replacing corn silage on a dry matter (DM) basis: 0%, 33%, 67%, and 100%. Intakes of DM, organic matter, and neutral detergent fiber were higher (<i>P</i> &lt; 0.05) in cows fed diets containing 0% and 33% wheat silage. Cows fed 0% wheat silage had higher acid detergent fiber intake than cows fed wheat silage (<i>P</i> &lt; 0.05). DM digestibility, nutrient digestibility, milk production, and feed efficiency did not differ (<i>P</i> &gt; 0.05) between treatments. The diet with 100% wheat silage inclusion resulted in higher concentrations of milk urea nitrogen (<i>P</i> &lt; 0.05). Feeding behavior was not affected (<i>P</i> &gt; 0.05) by wheat silage inclusion levels. Wheat silage can replace or partially replace corn silage in diets for crossbred dairy cows without compromising milk production or composition.</p>

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Wheat silage inclusion levels as a substitute for corn silage in diets of lactating Holstein × Gyr crossbred cows

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月2日

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  • Luciano Luís Jacob,
  • Rafael Monteiro Araújo Teixeira,
  • Edilane Aparecida da Silva,
  • Angelo Herbet Moreira Arcanjo,
  • Maurício Antônio de Oliveira Coelho,
  • Jessica Ewilin de Sousa,
  • Taiane Sena Santos,
  • Clenderson Corradi de Mattos Gonçalves,
  • Marcio de Souza Bastos,
  • Valdir Botega Tavares,
  • Marcela Queren Ribeiro da Cunha,
  • Helder Felipe Cruz do Nascimento

摘要

Tropical wheat cultivars can serve as an alternative to corn silage as a second-crop forage in the Cerrado region. This study aimed to evaluate the intake, digestibility, milk performance, and feeding behavior of crossbred Holstein × Gyr dairy cows fed diets containing increasing levels of wheat silage as a replacement for corn silage. Twelve cows with 518 kg body weight and 10.89 kg/day of milk production were used. The animals were distributed in three 4 × 4 Latin squares, balanced according to lactation stage. Treatments consisted of four levels of wheat silage replacing corn silage on a dry matter (DM) basis: 0%, 33%, 67%, and 100%. Intakes of DM, organic matter, and neutral detergent fiber were higher (P < 0.05) in cows fed diets containing 0% and 33% wheat silage. Cows fed 0% wheat silage had higher acid detergent fiber intake than cows fed wheat silage (P < 0.05). DM digestibility, nutrient digestibility, milk production, and feed efficiency did not differ (P > 0.05) between treatments. The diet with 100% wheat silage inclusion resulted in higher concentrations of milk urea nitrogen (P < 0.05). Feeding behavior was not affected (P > 0.05) by wheat silage inclusion levels. Wheat silage can replace or partially replace corn silage in diets for crossbred dairy cows without compromising milk production or composition.