RU2403907C2 - Method for better hatchability and safety of chickens - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention refers to agriculture, particularly to poultry farming. The method involves eggs heating in an incubator to t=37.6°C and immersion in a biologically active solution. The biologically active substance used is the preparation 1.4% Immunal also applied to process the eggs on the forth day after incubation began. The solution temperature is 16°C, and immersion time is 20 minutes.

EFFECT: method allows to reduce embryo death rate and the amount of incubation waste, to ensure better hatchability and batch of chickens, as well as body weight of chickens and their safety.

Description

The invention relates to veterinary medicine.

The aim of the invention is to reduce the mortality of chicken embryos, increase the hatchability and safety of chickens, obtaining young animals, more resistant to external factors.

A known method of introducing solutions into an egg by creating a negative intra-egg pressure, which is based on immersion of heated eggs in a cooled solution. In this case, the eggs are placed in trays, placed in an incubator, where they are heated to t = 37-37.5 ° C. Then the eggs are immersed for 10-15 minutes in a solution of the introduced substance cooled to 6-9 ° C. After removing the eggs, dry them slightly and lay them in the incubator again. With this type of processing, there are frequent cases of damage to the eggshell due to a sharp temperature drop (1).

The method is as follows. Chicken eggs are heated in an incubator to t = 37.6 ° C, then on the 4th day after the start of incubation, they are immersed in a solution of Immunal, a 1.4% concentration of the drug, which contains active substances that enhance the body's natural defenses and acting as a stimulant. During this period, differentiation of the spleen, factory bag and laying of the thymus begins in chicken embryos.

The temperature of the drug solution was 16 ° C, the processing time was 20 minutes. After processing, the eggs were dried in air for several minutes and again placed in the incubator until the end of the incubation period. A solution of the Immunal preparation of 1.4% concentration is prepared immediately before use by dissolving 1.4 parts of the Immunal preparation in 100 parts of distilled water. To prepare a solution of the Immunal preparation, the same solvent is always used - distilled water. The use of the preparation "Immunal" of this concentration for immersing chicken eggs is not known from the prior art.

After completion of the incubation process, the following was established. Treatment with Immunal helped to reduce fetal mortality and increase the safety of chickens. The amount of incubation waste changed: the number of blood rings decreased by 2.09% and amounted to 1.5%, the number of suffocates decreased by 0.52% and amounted to 3.59%.

The hatchability of chickens increased by 1.56% and amounted to 92.09%, the hatching of eggs increased by 1.03% and amounted to 89.23%.

The mass of day-old chickens was 38.07%, which is 4.6% more than the control indicator, the safety of chickens was 93%.

Information sources

1. Vladimirova Yu.N. The introduction of biologically active substances into chicken eggs without violating the integrity of the shell. Methods of morphological and physico-chemical analysis of eggs. M .: Rosselkhozizdat, 1967.

2. Fisin V.I., Zhuravlev I.V., Aydinyan T.G. Embryonic development of poultry. - M .: Agropromizdat, 1990.

Claims (1)

A way to increase the hatchability and safety of chickens, including heating eggs in an incubator to t = 37.6 ° C, immersing them in a solution of a biologically active substance, characterized in that 1.4% concentration Immunal is used as a biologically active substance with which the eggs are processed on the fourth day after the start of the incubation, while the temperature of the solution is 16 ° C, and the egg immersion time is 20 minutes.