Effect of different levels of nutrition of gilts on own performance and subsequent reproduction parameters
1997
Buchova, B. | Gracik, P. | Krska, P.
Feed consumption of two mixtures was studied in gilts of White Meaty breed (WM) kept in agricultural enterprises from weaning to first mating. The innovated feed mixture had a favourable proportion of lysine to metabolisable energy, and mutual proportion of amino acids (sulphuric amino acids, threonine and tryptophan) to lysine. The experimental group fed the innovated mixture OPO for breeding pigs had higher growth (daily gain from birth to 100 kg was 550 g) and lower backfat depth (1.55 cm) which also influenced the subsequent reproductive performance (number of all born pigs 11.2, live born pigs 10.9, raised to 21st day 10.3, litter weight on 21st day 64.2 kg and average length of parturition interval 178 days). The control group fed the feed mixture PCH had own performance (daily gain and backfat depth) of 525 g and 1.93 cm with subsequent reproductive performance (the same order as in the experimental one): 10.3; 9.9; 54.3 kg and 184 days. In all given parameters of own as well as reproductive performance statistically significant differences were found (P less then 0.001) between control and experimental groups. The improved parameters of own performance enabled a higher percent of the classified gilts to be put into the best classes (ER, EA). The results confirmed that rearing gilts of WM breed with the higher quality feed mixture improved their own performance and subsequently their reproductive performance
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