Veterinary hygienic examination of the quality of chickens eggs when using the food additive “Prinarovskaya”

The aim of the studies was to conduct a veterinary-hygienic assessment of changes in the eggs productivity of laying hens, after the use of the “Prinarovskaya supplement of fish (DKR)” in their main diet, which is a homogeneous dry mass made from chilled river fish, by-products of fish processings, as well as grain products (wheat bran). The method of production of the additive includes the following steps: grinding, cavitation heating and subsequent drying of the resulting mixture. The studied supplement contains a number of amino acids, vitamins and minerals, etc. The object of the study were laying hens of the LomannLsn-Classic breed at the age of 131 days. “Prinarovskaya DKR” were introduced into the diet of experimental laying hens: of the 1st experimental group 8 g of “Prinarovskaya DKR” were introduced per 100 g of the main ration (RR); The 2nd experimental group - 6 g. DKR to main ration; 3rd experimental group - 4 g. DKR to main ration; the control group was fed only main ration - feed PK1 -1G_1227 (GOST: R 51851-2001). A veterinary-hygienic assessment of the quality of eggs, obtained from laying hens, when feeding a new feed additive “Prinarovskaya” was carried out. We kept daily records of laid eggs by groups, the period of the beginning of oviposition. The egg production were calculated of the initial and middle laying hens , the egg production intensity for 120 days. To assess egg productivity, the weight of laid eggs, the egg mass for a certain period of egg laying, and the feed costs per 10 laid eggs were determined. Organoleptic, physical, and chemical methods were used to evaluate egg quality. Egg mass is an important indicator of egg nutrition. GOST 31654-2012 "Food eggs. Technical conditions ”, as well as the requirements for chicken hatching eggs, the minimum weight of food and hatching eggs (45 g) is indicated, below which the implementation and incubation of eggs is not recommended [1]. In studies, the following indicators were taken into account: large and small diameter of eggs, egg density, egg shape index of laying hens of different groups. To assess the state of the internal contents of the egg after opening, the following indicators were taken into account: protein mass, yolk mass, shell mass, egg volume. An external examination of the eggs assessed the condition of the shell, the presence of cracks, growths and depressions. The study indicates a positive effect of the feed additive "Prinarovskaya" on the egg productivity of birds in all periods of egg laying

куриное яйцо, куры-несушки, речная рыба, мука, массомтерия, пшеничные отруби, добавка кормовая «Принаровская», chicken egg, laying hens, river fish, flour, massometry, wheat bran, feed additive Prinarovskaya

1. ГОСТ 31654-2012 Яйца куриные пищевые. Технические условия

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