THE QUALITY OF MILK AND CHEESE OF SHEEP OF EAST FRISIAN AND ROMANOV BREEDS AND THEIR CROSSBREEDS

The article presents data on the physico-chemical parameters, technological properties of milk and the quality of cheese obtained from sheep of the East Frisian and Romanov breeds and their crossbreeds. The information about sheep’s milk with possible deviations from normal milk in terms of titrated acidity and thermal stability is presented

THE STATE AND TRENDS IN THE PRODUCTION OF MEAT OF DOMESTIC ANIMALS IN THE WORLD AND RUSSIA

The analysis of the dynamics of meat production of diff erent types of domestic animals in the world and in Russia over the past 20 years is given. It is noted that in the total production of meat of all types, the share of beef, pork and lamb is decreasing, and poultry meat is signifi cantly increasing.

ON THE ISSUE OF COLOR CONTROL OF THE WOOL COVER IN SHEEP

interbreeding, coat coloring, dominant, recessive and heterozygous animals, splitting of traits.

WEIGHT AND LINEAR GROWTH OF YOUNG ZAANEN GOATS IN THE CONDITIONS OF THE AKMOLA REGION

The article presents data on the weight and linear growth of young goats of the Zaanen breed bred in the conditions of the Akmola region of Kazakhstan.

CHICKPEAS AS PART OF BVMC FOR LACTATING GOATS

Changes in the live weight of goats aged from 3 to 6 months are analyzed. with the introduction of the drug “Melapol”, which contains melatonin-the hormone of the pineal gland.

THE EFFICIENCY OF LAMB PRODUCTION IN THE SLAUGHTER OF THE MEAT CONTINGENT OF SHEEP AT DIFFERENT AGES

The results of the study of the infl uence of the age of slaughter of sheep at 6 and 8 months are presented. on the economic effi ciency of lamb production. When rearing and feeding rams up to 8 months of age, the feed costs per 1 kg of gain were 6.54 ECU and 746 g of digestible protein compared to 5.81 ECU and 640 g of digestible protein in rams grown up to 6 months of age. The level of profi tability of lamb production in animals sold at 6 months was 41.9%, and in sheep sold at 8 months of age-14.1%, which is 27.8% lower

FEATURES OF ALLELIC POLYMORPHISM OF PROLACTIN AND BETA-LACTOGLOBULIN GENES IN LACON SHEEP

The paper presents prolactin (PRL) and beta-lactoglobulin (β-LG) gene polymorphism in the Lacaune sheep, bred at Nikolaev peasant farm enterprise, Krasnodar Krai. Genetic and statistical analysis allowed to determine numerical values of the genetic constants. The genetic structure of the population under study and its distinctness, determined both by breed affi liation and by allele status of the genes, was assessed.

PAST AND PRESENT IN BREEDING AND TECHNOLOGY OF EVALUATING OF NEW BREEDING ACHIEVEMENTS (BREEDS) IN THE DOMESTIC SHEEP BREEDING

The article considers some issues of the methodology of the breeding process in the domestic breed formation and the features of the technology for evaluating new breeding achievements in the past and present.

MEAT PRODUCTIVITY OF RAMS OBTAINED BY CROSSING VOLGOGRAD SHEEPS WITH RAMS OF DIFFERENT FOREIGN BREEDS

The article presents the indicators of slaughter, morphological and chemical composition of lamb meat obtained from industrial crossing of Volgograd breed queens with sheep breeds: Poll Dorset, Australian meat merino, North Caucasian meat-wool, Suff olk, Ile-de-France and Merinoland.

EFFECT OF DIFFERENT LEVELS OF COBALT ON THE DIGESTIBILITY OF NUTRIENTS IN THE DIET OF LACTATING SHEEP

In physiological experiments, the infl uence of different levels of cobalt in diets on the digestibility of nutrients in the diet and the level of milk productivity of lactating sheep of the Kalmyk fat-tailed breed was studied.