The efficiency of growing hybrid piglets with different weights when placed under a liquid feeding system

Abstract

The intensity of growth of piglets, their preservation during rearing, and the payment of feed by the increments of animals that were placed for rearing with a design live weight of 7 kg and 20 % less than the design weight – 5.5 kg were studied. Also, the ratio of consumption of compound feed of different recipes during rearing, their cost, and the efficiency of rearing piglets at different staged live weights were studied. It was established that piglets that weighed 1.58 kg less at the beginning of rearing, when placed on rearing during this period, showed 20.9 % lower growth energy, due to which they had 19.6 % lower absolute growth during this period, which caused together with a lower production weight, a 20.3 % lower weight when transferred to fattening and an 8.8 % worse feed payment in increments, they consumed 31.4 % more of the expensive first pre-starter feed during the growing period, and 11.9 % less than the second cheaper pre-starter compound feed and 42.6 % less than the cheapest starter compound feed, as a result of which the cost of feed consumed by the animals of the experimental group was 10.6 % lower compared to the analogs of the experimental group. But taking into account the significantly lower absolute growth of the animals of the experimental group, the cost of feed for 1 kg of growth was 11.2 % higher in comparison with the similar indicator of animals that were put on growing at a designed live weight of 7.0 kg. At the same time, rearing piglets under the conditions of putting them into this process with the design live weight contributed to a decrease of 11.2 % in the cost of feed per kilogram of growth, an increase of 20.3 % in the cost of one piglet after the completion of rearing, and a 23.1 % increase in the income from its sale and 1.07 % higher profitability of raising one head, but resulted in 10.6 % higher feed and operating cost of rearing 1 head and 19.6 % higher operating cost of one piglet at the end of rearing.