REPLACEMENT OF CORN SILAGE BY CHOPPED SUGAR CANE AND WHOLE COTTONSEED ON THE PERFORMANCE OF LACTATING HOLSTEIN COWS

Authors

  • Alexandre Vaz Pires Universidade de São Paulo (USP), Piracicaba, São Paulo, Brasil
  • Ivanete Susin Universidade de São Paulo (USP), Piracicaba, São Paulo, Brasil
  • José Manuel Corrêa de Simas Elanco Saúde Animal
  • Reinaldo Cunha de Oliveira Júnior Universidade Estadual de Goiás (UEG), São Luiz de Montes Belos, Goiás, Brasil
  • Juliano José de Resende Fernandes Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
  • Rafael Canonenco de Araujo Universidade de São Paulo (USP), Piracicaba, São Paulo, Brasil
  • Clayton Quirino Mendes Universidade de São Paulo (USP), Piracicaba, São Paulo, Brasil

DOI:

https://doi.org/10.5216/cab.v11i2.1094

Keywords:

Dairy Production

Abstract

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) than the DMI of cows fed 25 and 0% corn silage. Milk production was higher (P < 0.05) for cows fed 100, 75 and 50% corn silage than for cows fed 25 or 0% corn silage. Milk fat concentration was higher (P < 0.05) for cows fed 50, 25 or 0% corn silage than for cows fed 100 or 75% corn silage. Milk protein concentration was not affected (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.

KEYWORDS: Cottonseed, dry matter intake, milk composition, milk production.

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Published

2010-06-22

Issue

Vol. 11 No. 2 (2010)

Section

Animal Production

License

Copyright (c) 2010 Brazilian Animal Science/ Ciência Animal Brasileira

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How to Cite

PIRES, A. V. et al. REPLACEMENT OF CORN SILAGE BY CHOPPED SUGAR CANE AND WHOLE COTTONSEED ON THE PERFORMANCE OF LACTATING HOLSTEIN COWS. Brazilian Animal Science/ Ciência Animal Brasileira, v. 11, n. 2, p. 251–257, 22 Jun.2010.