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The fermentation of rehydrated corn grain influenced by additives application: aspects of conservation and nutritive value for cows

Grant number: 12/15505-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2012
Effective date (End): May 31, 2015
Field of knowledge:Agronomical Sciences - Animal Husbandry - Pastures and Forage Crops
Principal Investigator:Luiz Gustavo Nussio
Grantee:Greiciele de Morais
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

Rehydrated corn grain silage may be an attractive and cost-effective storage strategy, and provide gains in starch digestibility. Most of the scientific reports on this technique focuses exclusively as a grain processing method, so that basic aspects of the fermentation process, the application of additives and responses in animal performance need to be studied interconnected to a better characterization of this feed. The main of this work is to determine: i. The effect of non-application of additives on the rehydrated corn silage, compared to the use of Lactobacillus buchneri at a dose of 5 × 105 cfu / g of fresh matter (FM), Lactobacillus plantarum at a dose of 5 × 105 cfu / g FM, L . + buchneri, L. plantarum (Combo) both at the dose of 5 × 105 cfu / g FM, L. buchneri plus sodium nitrite (1.5 g / kg FM) and sodium benzoate at a dose 2.0 g / kg FM, about aspects of fermentation and aerobic stability of experimental silages. ii. Assess the nutritional value of rehydrated corn grain silages with or without the additive that showed the best performance in the previous phase for confined dairy cows . As experimental silos will be used plastic buckets with capacity of 6 L and the treatments wil be analyzed in a randomized escheme with 4 replications. To study the animal performance , silages with or without additive will be produced in drums with capacity of 200 L and their nutritional value contrasted with dry ground corn (the same grain origin), using 18 lactating Holstein dairy cows (average of 30 kg milk / day) allocated in six Latin squares 3 × 3. The intake, feeding behavior, production and milk composition will be evaluated.

Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MORAIS, Greiciele de. The fermentation of rehydrated corn grains influenced by the additives application: aspects of conservation and nutritive value for dairy cows. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz Piracicaba.

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