The effectiveness of using a water-soluble lipid complex in feeding young laying hens

The research aimed to examine the effectiveness of using fermented water-soluble lipid complex (ELC – essential lipid complex) in the amount of 0.4–1.0 % instead of soybean oil in the amount of 0.5–0.6 % on the growth and development of replacement young laying hens of the Loman LSL-classic cross. The studies were conducted in the conditions of the farm (FG) “Zahid-Ptytsia”. The control and experimental groups received balanced crude protein, metabolizable energy, amino acids, minerals, and vitamins. The control group received 0.6 % soybean oil from one day to 27 days and 0.5 % from 28 to 56 days. Experimental groups II, III, and IV received 0.5–0.4 %, 0.7–0.6 %, and 1.0–0.9 %, respectively. As a result of the research, it was found that adding a fermented water-soluble lipid complex had a positive effect on the growth and development of replacement young laying hens. In particular, the live weight at 112 days of age was within the recommended standard but was highest in the control group. However, all experimental groups had an advantage in developing reproductive organs. Ovarian weight was greater by 4.19, 11.24, and 5.14 % in groups II, III, and IV, respectively. The oviduct length was higher by 6.24, 14.20, and 4.31 %, respectively, in groups II, III, and IV. In terms of the development of secondary sexual characteristics, particularly the height of the comb, 112-day-old chickens of groups III and IV had an advantage by 2.94 %. Regarding the number of flight feathers, group III had an advantage of 4.88 %. An essential element of the technology of raising chickens is the cost of feed, which is about 70 % of the cost structure. In the II experimental group, feed costs were lower by 6.56 %, III by 8.92 %, and IV by 14.24 %. During the growing period, the cost of compound feed for growing one head decreased by 113.44 grams or 14.20 %. An essential element of the technology of raising chickens is the cost of feed, which is about 70 % of the cost structure. Feed consumption in the II experimental group was lower by 6.56 %, in the III – by 8.92 %, and in the IV – by 14.24 %. During the growing period, the cost of compound feed for growing one head decreased by 96–170 g or 1,81–3,20 %. If feed costs account for 70 % of the cost structure, then the cost of rearing was reduced due to the reduction in feed costs. The rearing efficiency will ultimately be known from the egg production results.