Effect of different forages preserved in silage form on feed intake and milk production of lactating cows
DOI:
https://doi.org/10.5433/1679-0359.2003v24n1p103Keywords:
Barley silage, Corn silage, Intake, Ryegras silage.Abstract
The objective of this study was to evaluate the effect of different forages preserved in silage form on the intake of dry matter, crude protein, organic matter, ether extract, neutral detergent fiber, total carbohydrates and non structural carbohydrates, milk composition and milk production. Twelve Holstein lactating cows with average production of 30 kg milk were used. They were fed with three experimental diets composed by a combination of forages plus concentrate: (T1) 50 % of corn silage + 25 % of ryegrass silage + 25% of barley silage; (T2) 50 % of ryegrass silage + 25 % of corn silage + 25 % of barley silage; and (T3) 50 % of barley silage + 25% of corn silage + 25% of ryegrass silage. The experimental design was 3 x 3 Latin squares with extra period in a change over arrangement. The dry matter, organic matter, ether extract and neutral detergent fiber intakes were not influenced by the combinations of the different forage sources in the diets. However, the crude protein intake by the animals was highest for the diet 2 (T2), that contained 50 percent of ryegrass silage +25 % of corn silage + 25 % of barley silage. The corrected milk production, or not, for 3.5 percent of fat, the fat and protein milk content, and the feeding efficiency (kg milk production/kg DM intake) were not influenced by the experimental diets.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.
This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.
The opinions expressed by the authors of the articles are their sole responsibility.
The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.
