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The breeding management of piglets with low birth weight leading to a lower mortality rate.
ŘEZÁČ, Ivan
The aim of the first experiment was to verify the effectiveness and profitability of providing of supplemental feed to piglets. Milk feed mixture of two producers (MFM- 1 vs MFM-2) were evaluated (served ad-libitum). All piglets were suckled and were fed with the pre-starter feed mixture from the 5th day until the weaning stage. The control group without milk supplements has shown a higher piglet mortality and worse body condition of sows. The usage of milk supplements led to the elimination of the sows´ body condition loss during the suckling period and reduced feed mixture consumption in sows (P<0.05). The MFM-1 group was found to have a higher consumption of milk supplement, the lowest mortality and the lowest loss of sows´ body condition (P<0.05). However, from the economic point of view, i.e. the costs on 1 weaned pig, slightly better results have been proven at the MFM-2 milk feed mixture. In the second experiment sows were divided into 2 groups. In the first group, the piglets were fed with milk feed mixture and in the second group, nurse sows (15% of the herd) were used. Nurse sows had a longer suckling period and farrowing interval, a slightly lower number of litters per sow per year and by 0.93 lower number weaning piglets per year. Using the milk feed mixture, generated a higher business profit per year than for nurse sows. However, the fact that nurse sows block the farrowing pen should be taken into account. In case there were kept sows fewer, the business profit would be higher. The aim of the third experiment was to compare 5 trials performed with two different pre-starter feed mixture for piglets and different feeding techniques in sow farrowing house. The relationship between the number of weaned piglets and their live weight in relation to the price of the nutritional supplement has not been not proven. Feeding piglets both with the sow's milk and starter feed mixture or milk feed mixture during the day would have a positive effect on their weight. Very important part of the post- weaning period is to make sure that the piglets are able to digest the subsequent feed mixture (so-called "enzymatic training"). Further research is needed to prove the effect of individual feeds on average daily gain, piglet mortality and the economic efficiency of piglet rearing.
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