Egg-laying capacity of parent flock geese at different stocking densities.

This article presents the results of studies aimed at establishing the optimal stocking density of purebred and hybrid geese of the parent flock, taking into account the indicators of their live weight and egg production. When conducting research, the stocking density of geese was established depending on the breed and shape. Different stocking densities of geese in groups were achieved due to their different numbers in groups: Kuban 1.2; 1.5; 1.8 birds/m2 , large gray 0.9; 1.2; 1.5 birds/m2 , hybrid bird 1.0; 1.3; 1.5 birds/m2 . It was revealed on the basis of the analysis of the productive qualities of adult geese that the optimal planting density of the Kuban geese is 1.8 heads/m2 , large sulfur = 0.9, hybrid = 1.3. The safety of geese at a given stocking density ensured an increase in the safety of geese of the Kuban breed by 95.3%, large gray = 94.0%, hybrid = 97.0%. The live weight of Kuban geese increased by 0.9%, large gray geese = 0.10, hybrids = 1.2, egg production by 0.6%, 2.2% and 0.5%, respectively.

Productive qualities of geese when crossing breeds and using hepatoprotective complex.

The study was on a one-way cross between Wanxi male and Lindov female geese, and tested the effects of a hepatoprotective compound on growth and other traits in the parental and one-way cross involving male and female progeny. The hybrids obtained from crossing had high viability and productivity; their level was also positively affected by giving a hepatoprotective complex. Female parents were the Lindov breed's geese, and male parents were 120 geese of the Chinese Wanxi breed. During the growing period, hybrid young birds were receiving a hepatoprotective complex in the amount of 1.0 mL per 1 L of water for 7 days. The research took into account geese' safety indices, live weight, and absolute and average daily gain. The interbreeding results prove that the resulting hybrids' safety index is 2.38%-4.54% higher than the parent forms' safety index. The hybrids' live weight increased by 8.4% due to a higher increase in live weight by 16.5%-22.1% allowing us to conclude the positive effect of crossing and using a hepatoprotective complex when breeding geese. The research made it possible to improve geese' productive qualities through hybridization and the use of a hepatoprotective complex. This information can contribute to the genetic improvement of body size in current breeding programs.

Effect of hydroponic green herbage on the productive qualities of parent flock geese.

BACKGROUND AND AIM: Green food is the natural diet for livestock and poultry. Therefore, production of green food in sufficient quantities to meet the current demand has emerged as an urgent problem today. The use of natural laylands results in green food shortage, which, in turn, necessitates the application of various methods of artificial production of green herbage. One of these methods is hydroponic cultivation of green grass as animal feed. Hence, this study was conducted to investigate the productive and reproductive qualities of geese of the parent herd. MATERIALS AND METHODS: Complex scientific analysis was conducted to explore the effect of hydroponic green herbage used at various dosages (20%, 25%, 30%, and 35% of total diet weight) on the realization of the reproductive qualities of parent flock geese. The methodological framework of this research is the efforts of various foreign and domestic scientists on the topic under study. This research was conducted using generally accepted methods (i.e., experiment, comparison, analysis, and generalization), along with special methods (zootechnical, physiological, biological, hematological, morphological, statistical, and economic). RESULTS: The optimal dosage of hydroponic green herbage for geese diet was established, which constituted 25-30% of the total diet weight and increased the poultry population survival rate by 2.0%, egg production rate by 3.8%, and the hatching egg yield by 4.9%. The carotenoid content in egg yolk ranged from 1.62 to 3.50 µg. The content of Vitamins A and B2 was higher by 3.19 and 2.32 µg, respectively, compared to that in the control. The production profitability level increased by 9.6%. CONCLUSION: By introducing 25-30% of hydroponic greens from the weight of the diet, it is possible to increase the safety of livestock by 2%, the yield of hatching eggs by 4.9%, egg production by 1.46-1.11 µg.

Phytoecdisteroids from Serratula coronata when growing ducklings.

This article presents the results of comprehensive studies to analyze the effect of a mixture of phytoecdysteroids extracted from the juice of Serratula coronata L. on the productivity and vitality of ducklings when grown for meat, and the optimal doses of its inclusion in the diet of the bird are revealed. The methodological basis of this study was the earlier works of domestic and foreign scientists on the topic under study. In the studies, a mixture of ecdysteroids extracted from the juice of the Serratula coronata L. was used according to the method developed by a team of scientists of the Ufa Federal Research Center of the Russian Academy of Sciences (Patent RU 2151598). The object of the study was the young ducks of the cross breed "Agidel 34" of the Beijing breed. It was established that the use of phytoecdysteroids in the diets of ducklings at a dose of 1.0 mg/l of drinking water allowed to increase the safety of the livestock by 4.0%, live weight by 4.5% (p <  0.01), average daily live weight gain by 3.0-3.5%, gutted carcass weight - 7.1%. At the same time, feed costs per unit of production decreased by 2.0%, and the profitability of duck meat production increased by 5.2%.