REPLACEMENT OF CORN SILAGE BY CHOPPED SUGARCANE PLUS WHOLE COTTONSEED ON RUMINAL PARAMETERS, MICROBIAL PROTEIN PRODUCTION, AND NUTRIENT DIGESTIBILITY IN LACTATING COWS

Authors

  • Alexandre Vaz Pires ESALQ/USP
  • Ivanete Susin ESALQ/USP
  • José Manuel Corrêa de Simas ELANCO Saúde Animal
  • Flávio Augusto Portela Santos ESALQ/USP
  • Clayton Quirino Mendes ESALQ/USP
  • Reinaldo Cunha de Oliveira Junior UEG
  • Juliano José de Rezende Fernandes UFG
  • Rafael Canonenco de Araujo ESALQ/USP

DOI:

https://doi.org/10.5216/cab.v9i1.3660

Keywords:

Nureição de ruminantes, vacas leiteiras

Abstract

Five multiparous Holstein cows averaging 525.91 kg BW and 85 days in milk were assigned in a 5 x 5 Latin square to evaluate the effects of corn silage replacement by sugarcane plus whole cottonseed. Cows were cannulated in the rumen and proximal duodenum and were fed a 50:50 concentrate:forage diet (DM basis). Treatments were defined by the replacement of corn silage by chopped sugarcane (whole plant) plus whole cottonseed in the following proportions: 100:0 (control); 75:25; 50:50; 25:75; 0:100 in the DM basis. Dry matter intake (DMI) of cows fed 100, 75, and 50% corn silage diets was higher (P<0.05) than DMI of cows fed 25 and 0% corn silage. Ruminal degradability and total tract digestibility of neutral detergent fiber and acid detergent fiber were not affected (P>0.05) by treatment diets. Total digestibilities of crude protein in diets containing up to 50% of sugarcane were lower than in diets containing 75 or 100% of sugarcane. Ruminal ammonia concentration decreased (P<0.05) with sugarcane and whole cottonseed inclusion. Concentrations of acetic, propionic and butyric acids as well as total volatile fatty acids concentration were higher (P<0.05) with sugarcane inclusion up to 50% level. Corn silage can be replaced by sugar cane plus whole cottonseed up to 50% level of forage in the diet without negative effect on nutrient utilization by dairy cows producing up to 18 kg milk/day. KEY WORDS: Digestibility, NDF, volatile fatty acid.

Downloads

Download data is not yet available.

Downloads

Published

2008-04-03

How to Cite

PIRES, A. V.; SUSIN, I.; SIMAS, J. M. C. de; SANTOS, F. A. P.; MENDES, C. Q.; OLIVEIRA JUNIOR, R. C. de; FERNANDES, J. J. de R.; ARAUJO, R. C. de. REPLACEMENT OF CORN SILAGE BY CHOPPED SUGARCANE PLUS WHOLE COTTONSEED ON RUMINAL PARAMETERS, MICROBIAL PROTEIN PRODUCTION, AND NUTRIENT DIGESTIBILITY IN LACTATING COWS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 9, n. 1, p. 50–58, 2008. DOI: 10.5216/cab.v9i1.3660. Disponível em: https://revistas.ufg.br/vet/article/view/3660. Acesso em: 17 jul. 2024.

Issue

Vol. 9 No. 1 (2008)

Section

Animal Production

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).