Theme 21: Forage Conservation
Description
A study was carried out to find out the effect of frequency of defoliation on yield and feeding value of clone-13 (Pennisetum purpureum) in Sri Lanka. Three frequency of harvesting, namely 45, 60 and 75 days were used and, fresh yield per plot was measured. Sub samples were taken for dry matter determination and proximate analysis. According to results, frequency of harvesting of 60 days can be recommended for clone-13 under no fertilizer regime. In addition, effect of growth stage on ensiling characteristics of clone-13 was also studied. Clone-13 was harvested at 45, 60, 75 or 90 days and, ensiled alone or with 5% coconut (Cocos nucifera L.) scrapings or 5% rice (Oriza sativa) bran in laboratory silos. Therefore, altogether 12 treatments were used in the study with 5 replicates. Silos were opened after 6 weeks and, physical and ensiling characteristics were studied. Physical characteristics of silage were satisfactory and had a yellowish brown colour, pleasant aroma and a moist texture. Highest volatile fatty acids and crude protein contents were observed with 45 days old grass silage whereas lowest in 90 days old grass silage. Addition of rice bran and coconut scrapings improved the fermentation characteristics of silage compared to no additives.
Included in
Yield, Feeding Value and Ensiling Characteristics of Clone-13 (Pennisetum purpureum)
A study was carried out to find out the effect of frequency of defoliation on yield and feeding value of clone-13 (Pennisetum purpureum) in Sri Lanka. Three frequency of harvesting, namely 45, 60 and 75 days were used and, fresh yield per plot was measured. Sub samples were taken for dry matter determination and proximate analysis. According to results, frequency of harvesting of 60 days can be recommended for clone-13 under no fertilizer regime. In addition, effect of growth stage on ensiling characteristics of clone-13 was also studied. Clone-13 was harvested at 45, 60, 75 or 90 days and, ensiled alone or with 5% coconut (Cocos nucifera L.) scrapings or 5% rice (Oriza sativa) bran in laboratory silos. Therefore, altogether 12 treatments were used in the study with 5 replicates. Silos were opened after 6 weeks and, physical and ensiling characteristics were studied. Physical characteristics of silage were satisfactory and had a yellowish brown colour, pleasant aroma and a moist texture. Highest volatile fatty acids and crude protein contents were observed with 45 days old grass silage whereas lowest in 90 days old grass silage. Addition of rice bran and coconut scrapings improved the fermentation characteristics of silage compared to no additives.
