The egg productivity of quails for feeding different levels of dry post-alcohol bard in composition of feed

Abstract

Numerous studies in animal husbandry are aimed at substantiating the feasibility of using waste from technical industries in animal feeding. Recently, dry post-alcohol bard can be found in compound feed recipes. It is a good source of protein, but its amount in the feed is limited due to the presence of anti-nutrients. Experimental studies of the dynamics of productivity of laying quails for the consumption of complete feed with different proportions of dry post-alcoholic bard were conducted. For this purpose 5 groups of quails of an egg direction of productivity on 30 animals aged 42 days everyone were formed. Quails of the control group consumed complete feed, which did not contain dry post-alcoholic bard. Instead, animals of the 2nd, 3rd, 4th and 5th experimental groups during the main period of the experiment were fed, respectively, 5%, 10, 15 and 20% of dry post-alcoholic bard. The nutritional value of compound feeds of all groups was the same. During 120 days of the main period of the experiment, the most prevalent control animals were quails of the 3rd experimental group, which consumed 10% of dry post-alcoholic bard as part of the feed. Slightly smaller (5.0%) was the predominance of animals of the 2nd experimental group, the content of bards in the diet of which was 5%. The least different from the control indicators were the quails of the 4th experimental group, which only 0.3% outperformed the latter, consuming 15% of dry bard in the compound feed. The share of dry post-alcoholic bard 20% in the complete feed of quails of the 5th experimental group had a negative effect on their productivity, as the gross collection of eggs in this group was less than the control by 1.6%. In addition to differences in the number of collected eggs, the results of the experiment showed a statistically significant difference in the weight of laid eggs between animals of the control and experimental groups. During the main period of the experiment on the average weight of eggs the most control was dominated by birds of the 3rd experimental group - by 1.1%. Slightly smaller (0.7%) was the predominance of animals of the 2nd experimental group. Quails of the 4th experimental group were little different from the control in terms of egg weight - only 0.4% outweighed it. The birds of the 5th experimental group also slightly differed from the control in terms of egg weight - only 0.2% inferior to it. Thus, the inclusion of 5–10% of dry post-alcoholic bard in the feed has a positive effect on the productivity of quails. Key words: dry post-alcoholic bard, eggs, quails, laying, egg weight, compound feed, feeding.