Ciência Animal Brasileira (Jun 2010)

SUBSTITUIÇÃO DE SILAGEM DE MILHO POR CANA-DE-AÇÚCAR E CAROÇO DE ALGODÃO SOBRE O DESEMPENHO DE VACAS HOLANDESAS EM LACTAÇÃO

  • Alexandre Vaz Pires,
  • Ivanete Susin,
  • José Manuel Corrêa de Simas,
  • Reinaldo Cunha de Oliveira Júnior,
  • Juliano José de Resende Fernandes,
  • Rafael Canonenco de Araujo,
  • Clayton Quirino Mendes

Journal volume & issue
Vol. 11, no. 2
pp. 251 – 257

Abstract

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Five multiparous Holstein cows averaging 526 kg of body weight and 85 days of lactation were assigned in a 5 x 5 latin square design for the evaluation of the replacement of corn silage by sugar cane and whole cottonseed. Cows were fed a 50:50 concentrate:forage diet (dry matter basis-DM). Treatments were defined by the replacement of corn silage by chopped sugar cane (whole plant) according to the following proportions: 100:0 (control), 75:25, 50:50, 25:75, 0:100, based on dry matter roughage. In each treatment, 0, 5, 10, 15, and 20% of whole cottonseed were added to the dietary DM, respectively. Dry matter intake (DMI) of cows fed 100, 75, and 50% corn silage diets was higher (P 0.05) by inclusion of sugar cane and whole cottonseed. Corn silage can be replaced by sugar cane up to 50% of roughage level without negative effect on performance of dairy cows producing up to 18 kg milk/day.

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