Том 5, № 1 (2017)
- Жылы: 2017
- ##issue.datePublished##: 15.01.2017
- Мақалалар: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/18387
Бүкіл шығарылым
Zone features of chemical composition of feeding stuffs of Mordovia Republic and their optimization in diets
Аннотация
The article considers the results of a chemical analysis of the composition and nutritive value of the feeding stuffs of Mordovia Republic zones. As a result, the authors made a diet based on the local feeding stuffs for dairy cows of different productivity.
The effect of retinol on the concentration of tocopherols in liver and blood serum of feeder steers at feeding in wheat barda
Аннотация
The article considers the effect of retinol on the concentration of tocopherols in liver and blood serum of feeder steers at their feeding in wheat barda. The study shows that the increase of synthetic vitamin A in the diet of feeder steers at feeding in wheat barda stimulates the fattening of the animals and increases their production yield.
Postnatal histogenesis of intramural gastric ganglia depending on types of feeding in experiment
Аннотация
A comparative morphological analysis of the early postnatal ontogenesis (from birth and to 4,5-month age) of ganglia of the intermuscular nerve plexus of the cicatrix of the multichamber stomach of lambs of Edilbayevsky breed both on natural feeding with ewes and on hand rearing with the Kolvo-Start substitute of sheep milk (SSM) has been carried out. Morphological indicators of adaptive and compensatory reorganization of the nerve tissue are defined.
The use of organic selenium in diets of laying hens of Lohmann brown cross
Аннотация
The article presents the results of studying the effect of different doses of the organoselenium drug Selenium East on nutrient digestibility of the diet substances, morphological, biochemical parameters and mineral composition of blood, egg productivity. It was found that the use of Selenium East at 1.0% in feeding of laying hens enhances digestibility of nutrients, regulates homeostasis, increases egg production, egg weight and improves morphological parameters.
Age dynamics of fetal skeleton of kalmyk fat-tailed sheep
Аннотация
The article presents the data of a study of the development of the gastrointestinal tract and the skeleton of the fat-tailed sheep fetus at different embryonic periods. It is established that the absolute increase in the mass of the digestive tract and the skeleton mainly occur at the end of the uterine development of the fetus.
The effect of feed additive "Natuphos" on the productivity of pigs
Аннотация
Biologically active substances are stimulants of growth and development of animals. The use of feed additive "Natuphos" in the diets of rearing pigs stimulated the increase of their daily average gain of live weight by 12 g, while the lowering of feed cost per 1 kg is 0,15 feed units or 0,17 EKE. Additional profit from the sale of pork in the experimental group was 5,8% higher compared to the control group.
Comprehensive assessment of black-and-white and red-and-white heavy yield holsteinized dairy cows
Аннотация
A comprehensive assessment of black-and-white and red-and-white dairy cows of "1 May" farm has been carried out. The herd has been formed mainly by Simmental and by some black-and-white cows mated with Holstein red-and-white sires. The study does not show any significant differences in the basic exterior measurements between red-and-white and black-and-white animals.
The effects of kappa-casein and beta-lactoglobulin genotypes on milk productivity and technological properties of milk of red-and-white cows in Mordovia Republic
Аннотация
It has been found that the milk yield of cows with AAAB genotype of kappa-casein and beta-lactoglobulin genes was higher compared to the cows with ABBB genotype. Protein content of milk (3,56%) of the cows with genotype ВВAA was higher compared to the groups of cows with other genotype combinations of kappa-casein and beta-lactoglobulin. Higher fat content of milk was obtained from the groups of cows with homozygous genotype BB of beta-lactoglobulin gene (4,80-4,87%). The fat indicator was higher than in animals with other genotype combinations of kappa-casein and beta-lactoglobulin. Cow genotype of kappa-casein and beta-lactoglobulin gene has a positive effect on the technological properties of milk.
The effect of kappa-casein genotype on milk productivity of red-and-white cows in Mordovia Republic
Аннотация
Genotyping of emerging Volga type red-and-white cattle in Mordovia Republic has been carried out. It has been conducted according to the loci, which determine economically valuable signs. It has been found that the productivity of cows with homozygous genotype of B allele in kappa-casein gene was higher than the one with the homozygous genotype of A allele. The milk of cows with A allele kappa-casein gene contains less protein than the milk from B allele cows. The yield of milk fat in B allele cows was greater than the one in the milk of cows with A allele.