The effects of floor space on growth rates and sperm production were examined in male calves, 7 to 13 month of age. Calves were divided into 3 groups and allocated either 3.5 m² of floor space per animal (group 3), 3 m² (group II) or 2.5 m² (group I). Daily weight gain in group 3 was higher by 50...

Labour- and energy saving milk production is possible when intensive technologies based on free-stall housing of dairy cows is used. Recommendations on how to organize free-stall housing on dairy farms are given.

The optimum amounts of straw in litter were determined for cows housed in free stall boxes. It is suggested that straw requirement for free-stall housed cows is approximately 1 kg per head in individual boxes, or 8 kg per head for cows housed in groups on deep litter and 4.5 kg per head for cows ...

Chinese oak silkworm larvae were grown in the laboratory at varying stocking densities and air temperatures. Increasing the stocking density halved the quantity of 1st-grade cocoons produced, whereas the amount of low-grade cocoons increased 2.5-fold. Intake of birch leaves by 5th instar larvae at...

The efficiency of automated feeders for concentrates is evaluated.The technical details are given and the ideal position of the feeders inside cattle housing is discussed.

Changing housing for dairy cows from tied to free-stall housing on a deep straw litter resulted in improved comfort for animals and production of milk of high sanitary quality. Farm reorganization also reduced labour requirement by 4.4 times and energy expenditure on milk production by 30.5%....

The efficiency of specially created crates for calves housing in prophylactic period are given. Housing calves in special crates resulted in rapid growth, regular exercise, cessation of suckling reflex and improved health. Disease resistance indices were similar to those of calves that were reared...

Feeding diets supplemented with 40 ml/day of rapeseed oil led to a reduction of cadmium concentration in cows' milk in the winter housing period by 9.1%, and that of cadmium, lead and nitrates at the beginning of grazing by 16.7, 5.8 and 11%, respectively. The concentration of cadmium and nitrates...

The perfect microclimate in buildings and energy consumed for this climate during winter is possible if technological qualities of fence constructions are higher by 0.97-2.5 m² °C and when natural ventilation is used. Microbial contamination of the buildings for farrow and weanlings during this...

The article deals with the information on fish and biological norms of European catfish breeding in the ponds of the Republic of Belarus including the norms of brood stock breeding, the norms of reproduction and larvae rearing, the norms of seeding and catfish rearing, wintering of catfish of...