Silage preparation from maize hybrids
1989
Barkoczi, O. | Baskay, Gy. | Szentpetery, Zs. | Vajdai, I. (Agrartudomanyi Egyetem, Godollo (Hungary). Mezogazdasagi Tanszek)
Following hybrids were involved in these studies: Pioneer 3839 served as control; Pioneer 3901; Pioneer 3732; HS-50/A an American hybrid, and two Hungarian hybrids: Sze MTC-344 and Kiskun SC. On basis of examination the ensiled green maize hybrids the authors concluded that most dry matter and crude protein was produced by the P 3739 and P 3839, respectively. However, the P 3839 hybrid had the greatest net energy content and the Sze MTC-344 and HS-50/A hybrids had the least dry matter content. The data obtained in the experiments help to determine the optimum order of harvest. In respect of digestibility also the P 3839 hybrid took the first place. The results of the Sze MTC-344 were the less favourable since 70 per cent of the protein of the P 3839 was digested and only 55 per cent of that of the Sze MTC-344 hybrid. The analyis carried out after the fermentation was completed indicated that the Kiskun SC and P 3732 hybrids had the best crude protein content. In respect of the net energy the P 3839 and the Kiskun SC proved best and worst, respectively. As for the pH value P 3732 and the HS-50/A hybrids proved worst and these hybrids produced the most acetic acid. The greatest amount of butyric acid was found in the silos of the P 3839 and the Sze MTC-344 hybrids. With exception of the P 3732 hybrids all other breeds won outstanding qualification in respect of different acid presence of different acids (lactic acid, acetic acid and butyric acid).
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