Increased Stress Resistance of the Offspring Egg Cross Chickens when Using Biologically Active Substances before Hatchin
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RAL BIOLOGY
Increased Stress Resistance of the Offspring Egg Cross Chickens when Using Biologically Active Substances before Hatching Academician I. I. Kochisha, I. S. Lugovayaa,*, T. O. Azarnovaa, M. S. Naydenskya, A. A. Antipova,
Yu. V. Petrovaa, D. V. Anshakovb, and E. A. Zolotukhinab Received April 13, 2020; revised April 29, 2020; accepted April 30, 2020
Abstract—Application of biologically active compositions, containing colamine, succinic acid, serine, and pyridoxine hydrochloride before hatching decreased hatchery waste and increased hatching rates by 2.65% and egg hatchability by 1.85%. The chicks of the experimental group exhibited a decrease in the intensity of lipid peroxidation, which indicated a greater resistance to stress. This conclusion is additionally based on an increase in the Krebs index by a factor of 1.74 (p < 0.01) and leukocyte intoxication index by 5.53% and a decrease in the lymphocyte-granulocyte index by a factor of 1.75 (p < 0.05) and leukocyte index by 1.67% (p < 0.05). The body length of the offspring of the experimental group was by 2.12% less and safety for 60 days of cultivation was 3% higher compared to the control. Keywords: chickens, embryogenesis, stress resistance DOI: 10.1134/S0012496620050051
Poultry farming is the most stressogenic branch of animal husbandry due to a number of factors, including artificial incubation, which at the scale of the industrial production, as yet fails to provide for all the necessary factors, such as bioacoustics, air ionization, etc., characteristic of natural broodiness and bring forward the hatch to 100% target indicator. In these circumstances, emergence of novel high-productive breeds and crosses not trained commonly to respond to stress heighten the urgency of a problem of improving a level of resistance to stress in poultry [1]. Application of a composition of natural metabolites appears to be a relevant solution to the task. The following biologically active substances are used in the present study. The succinic acid features adaptogenic property and has anti-hypoxic, anti-stress (antioxidant), and neurotropic action. Colamine inhibits oxidation of fats, vitamin A, and other compounds with unsaturated carbon bonds; it is actively involved in redox processes in the animal bodies, optimizes the phosphorus and protein metabolism, and, therefore, is a growth promoter. Serine is a glycogenic amino acid, a Skriabin
State Academy of Veterinary Medicine and Biotechnology, Moscow, 109472 Russia b Zagorsk Experimental Pedigree Breeding and Genetics Center, Branch of All-Russian Scientific Research and Technological Institute of Poultry Production, Russian Academy of Sciences, Sergiev Posad, 141311 Russia *e-mail: [email protected]
composing the cell membrane phospholipids and active sites of many enzymes. Vitamin Ð’6 (pyridoxine hydrochloride) is a water-soluble vitamin, active forms of which are phosphorylated derivatives, namely, pyridoxal phosphate and pyridoxamine phosphate. Pyridoxal phosphate is contained in many enzymes that ensure the oc
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