The effects of adding beet molasses and barley grain and delay before ensiling on canola silage quantity and quality parameters

Document Type : Research Paper

Authors

1 MSc. Animal Nutrition Science. Dept. Animal and Poultry Nutrition, Gorgan University of Agricultural Sciences and Natural Resoureces

2 Ph.D., Dept. Animal and Poultry Nutrition, Gorgan University of Agricultural Sciences and Natural Resoureces

3 Professor., Dept. Animal and Poultry Science, Ferdowsi University of Mashhad

4 Ph.D Student., Dept. Animal and Poultry Nutrition, Gorgan University of Agricultural Sciences and Natural Resoureces

Abstract

This study was conducted in order to determine the effects of adding molasses, barley grain and also, delay before ensiling on appearance characteristics, and nutritional value of canola silage. The data were analyzed using a completely randomized design with 2×4 factorial method. The experimental treatments were as followed: 1- silage without additive (control) and without delay before ensiling, 2- silage without additive with 48 hours delay before ensiling, 3- adding 5% molasses without delay before ensiling, 4- adding 5% molasses with 48 hours delay before ensiling, 5- adding 5% barley grain without delay before ensiling, 6- adding 5% barley grain with 48 hours delay before ensiling, 7- adding 2.5% molasses + 2.5% barley grain without delay before ensiling, and 8- adding 2.5% molasses + 2.5% barley grain with 48 hours delay before ensiling. Each of additives mixed with canola forage in 2 different times (0 and 48 h after harvest), and then, packed into plastic bucket containers, and were kept at 25°C for 60 days. According to the results, adding molasses increased water soluble carbohydrates, and decreased pH, neutral detergent fiber and acid detergent fiber (P<0.05). Delay before ensiling, improved appearance characteristics, and also, increased pH and crude protein of silage (P<0.05). In conclusion, molasses and barley grain with 48 hours delay before ensiling had a better performance, in terms of appearance characteristics, chemical composition and canola silage digestibility.

Keywords

References

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Animal Sciences Journal
Volume 31, Issue 119
September 2018
Pages 169-182

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