The effect of silage additive Supersil Br on grass silage (Lolium hybridum) quality and milk production
1994
Lanuza A, Francisco | Klein R, Fernando | Dumont L, Juan Carlos (Instituto de Investigaciones Agropecuarias, Osorno (Chile). Estacion Experimental Remehue) | Reyes G, Guillermo | Boldt Q, Juan | Bassi V, Andres
This trial was conducted from November 1990 to August 1991 at the Remehue Research Station (INIA) in order to evaluate the use of a commercial additive (Supersil Br, a mixture of formic, sulphuric, phosphoric and propionic acids plus formation) to silage made of hybrid ryegrass (cv. Sabrina-Sabel). The effect was measured on food intake and milk production of autumn calving cows and in the characteristics of fermentation parameters of both silages. Harvesting by direct cut was made at November 18th and 19th when the forage had 18,2% dry matter and 17.9% soluble carbohydrates (dry matter basis). For silage-making two silos were used; one of the silos had no additive (control treatment) and the other was added 2.5 L of Supersil Br per ton of fresh forage. Sixteen lactating Holstein-Friesian cows were allotted in two groups which were fed ad libitum either the treated or the control silage; in addition the cows received a mixture of 5.0 kg/day of concentrate (Containing 19% T.P. and 2.8 Mcal ME/kg) and 0.25 kg of a mineral mix per cow daily. Chemical composition of the silages differed statistically only for pH (3.9 and 4.0), ammonia N (8.1 and 5.9% of total N) and acid detergent fiber (34.81 and 37.35%) for the control and Supersil Br, respectively (P0.05) affected by silage type
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