Concentration of caproic and sorbic acids effective for inhibition of aerobic deterioration in corn silage
1996
Hattori, I. (Ehime Univ., Matsuyama (Japan). Coll. of Agriculture) | Kumai, S. | Fukumi, R.
It is well known that the nutritive value of silage is significantly affected due to aerobic deterioration after opening the silo. So, it is important to inhibit aerobic deterioration of silage for quality feeding to livestock. Some chemicals like caproic and sorbic acids have been identified as inhibitors to such aerobic deterioration of silage. But there is little information about the effective concentration of these inhibitors in controlling the aerobic deterioration of corn silage. Therefore, this study was carried out to determine the effective concentration of caproic and sorbic acid in the inhibition of the aerobic deterioration of corn silage. The corn at dough stage were harvested and cut into 2 to 3 cm length. Caproic acid or sorbic acid was mixed with corn pieces at the concentration of 0, 0.025, 0.05, 0.1 and 0.2% of fresh material before ensiling respectively. Each treated silage material was ensiled to make 100 liter silo and stored at ambient temperature for about 100 days. After opening the silo, 2.5 kg of silages representing each silo was transferred into a container made of expanded polystyrene (25 cm edge, 16 cm depth, 1.5 cm thickness). The silages were not compressed and kept in a room, with the surface being exposed to the atmosphere. The temperature, pH, microflora and organic acid were measured during the experimental period
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