Research of composition and physical-chemical properties of curd whey concentrate obtained by nanofiltration

The article presents studies of nanofiltrate-curd whey concentrate

samples as well as its calculated nutritional and caloric value. It shows the expediency of

using nanofiltrate-curd whey concentrate in the production of functional dairy products.

Сultlvation of narrow-leaved fireweed (сhamaenerion angustifolium) together with maral root (rhaponticum carthamoides) (willd) jlin

The authors investigated the ability of narrow-leaved fireweed

(Сhamaenerion angustifolium or Ivan-chai) to grow together with maral root

(Rhaponticum Carthamoides) (Willd.) Iljin. in the Northern part of the non-chernozem

soil zone of Russia. Both plants were found to start grow immediately after melting

of snow cover. The phenological flowering period of the maral root occurs earlier than

that of the narrow-leaved fireweed. The experiment has revealed that in a mixture of

Influence of bulls on the reproduction indicators of daughters taking into account their productivity

The main objective of the development of dairy cattle breeding is to increase

the breeding productive characteristics, taking into account the preservation of the

reproductive qualities of animals. The research was conducted on the basis of data

from the breeding plant for black-and-white cattle breeding OOO “Zazerkalie” in the

Vologda region. Bulls-improvers were determined by the complex of selected traits,

taking into account the linear affiliation: Meson 3097402441; Retirement 11720463 of

Influence of the polymorphism complex of κ-casein (CSN3) and prolactin (PRL) genes on the milk productivity of the holstein first calf heifers

The presented study is dedicated to the influence of the polymorphism complex of κ-casein (CSN3) and prolactin (PRL) genes, which are responsible for milk quality and milk productivity. The study was carried out among Holstein first calf heifers by Integrated Agricultural Production Centre “Breeding farm named after Lenin” of Atninsky district of the Republic of Tatarstan. DNA samples were separated from blood samples of 261 cows for identification and genotyping according to kappa-casein and prolactin genes by PCR-RFLP analysis method.

Rational technological scheme of on-farm feed production for calves with plant matter

The rational technological scheme of feed production containing plant matter for calves has been explained. The scheme includes mutual extrusion of grain and plant matter, the extrudate next mixing with other feed components, or plant matter making for using during winter period by the combination of low-temperature drying and next entering in feed composition. The scheme makes it easy to enable corresponding procedures in the technological process of on-farm enterprises.

Influence of feed quality on milk productivity indicators

The article presents the results of studies on affecting of feed quality on the quality and quantity milk indicators in view of a livestock management method and milking technology. The analysis has revealed the relationship between the balanced diet of dairy cows and the level of milk yield. With the improvement of bulky feed quality the quality of milk has improved too. During the period under review we have noticed an increase in milk production and mass fraction of milk fat content using all management methods and technologies of milking.

Exterior features and milk quality of Saanen goats

The purpose of this research was to determine the relation between the exterior characteristics of Saanen goats and their milk productivity. We have studied the Saanen goats population having the body development in accordance with the breed standard. For adult goats the height at the shoulder was 75.4cm as compared to the standard height of 75cm; the height at the hips - respectively 75.7 and 76cm; the body length - 80.2 and 81cm; the chest girth - 86.6 and 88cm. So, the goats showed the optimal index of lengthiness and blockiness for these animals of 109% and 107% respectively.

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