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Influence of different levels of lysine in mashed fodder on ostrich eggs incubation quality
The dynamics of ostrich farming in Ukraine requires carrying out scientific research on the ostrich eggs incubation qualities under different feeding levels.
To ensure normal liveliness and high productivity, Poultry needs the required amount of protein and amino acids in a certain ratio with each other and with other nutrients. Recent studies have proved convincingly that the incubation qualities of poultry eggs depend on its feeding and on the level of amino acids in the feed in particular, as it is one of the main components of the eggs.
The incubation properties of poultry eggs (fertility, hatchability, survival of the young) are influenced by a number of factors, including full feeding, therefore, according to the indices of the incubatory properties of eggs of ostriches, the value of poultry feeding can be judged.
The study of ostrich hatchable eggs of the control group reveale that only 22 eggs out of 30 were fertile by a fortnight period which made 73.3 %. Testing eggs of the experimental group2 showed the the fertility was 76.7 % in this group which is 3.4 % higher than in the control.
The highest fertility was also found in the eggs obtained from the experimental group 4 layers. This index was higher than in control by 6.7%. Experimental groups 4 and 3 eggs fertility was the same.
Eggs fertility in the control was 73.3 %. It was found out use of 1.1 % lysine in the fodder composition contributed to the female ostrich eggs fertility increase. The difference with the control made 6.7 %.
The influence of different levels of lysine in the feed on ostrich eggs hatchability in experimental groups was revealed. In the control, 53.3 % hatchability was recorded. hatchability in the experimental group 2 eggs was higher as compared to control by 3.4 %.
17.0 % ostriches hatched from the eggs incubated from the experimental group 3, which was 56.7%. The hatchability was higher than in control by 3.4 %.
The highest hatchability was recorded in the experimental group 4, the index was higher than that of controls by 6.7 %.
The positive influence of increased levels of lysine in feed for ostriches production has been established.
Thus, the yield of young poultry in the first group was 53.3 % and it ranged from 56.7 to 60.0 % in the experimental groups. The difference between the experimental (2-4) and the control groups ranged 3.4-6.7 %.
Invreased fertility and hatchability of ostrich eggs from the experimental groups can be caused by an increased level of amino acid nutrition, including lysine, which is an integral part of the egg mass, which plays a significant role in poultry reproduction.
Conclusions It was proved that increased lysine levels in feed for ostrich females during oviposition contributed to improved incubation qualities of eggs. The highest fertility rates were noted in the layers the experimental groups 3 and 4, and amounted 80 %.
75 % increase of incubation eggs hatchability in the females of experimental groups 3 and 4 was noted, which is 6.7 % higher than in the control group birds.
Increased yield of young animals was revealed in experimental group with 1.1-1.2 % level of lysine in feed. The indicator was higher compared to experimental poultry by 6.7 %.
Determination of the effect of different doses of lysine in the composition of compound feed on the biochemical parameters of females ostriches blood is a perspective research area.
Key words: mixed fodders, african ostrich, lysine, incubation, egg productivity, fertility, hatchability, eggs yield.
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