ROLE OF DAIRY CATTLE BREEDING IN THE VOLOGDA REGION IS AS THE SOLUTION OF PROBLEMS OF PROVIDING THE POPULATION OF THE EUROPEAN NORTH WITH FOOD

Author(s):  
A.N. Anishchenko

The research was carried out to determine the best breeding material of Ayrshire breed in the Vologda region on the basis of breeding study and productive characteristics of record cows. The novelty of the research is to assess the breeding material of highly productive sires, taking into account the selection of animals (domestic, foreign). The work was carried out on the basis of database on breeding cows of Ayrshire breed in the Vologda region in the amount of 1638 heads. Outstanding scientists Nikitina M. A., Matyukov V. S. believe that record cows play a significant role in the improvement of dairy cattle herds. According to the number of highly productive daughters the best bulls of the national selection were identified, namely Athlete 1592, Master 1020, Centaur 522, Oasis 1530. Also there were bulls offoreign breeds - Anatoli 711, Onni 127. The best lines of the most productive cows are: Urho of Errant 13093 -35% of Sniperum 63640 - 20%, C. B. Commander 174233 - 20%. From the bull Baikal 3673 of Urho Erranta 13093 line four record cows were received, from the bull Centaur 522 line SB Commander 174233 - three cows. Record cows were obtained by various methods of cross-line and intra-line breeding. On the basis of the conducted researches the best breeding material of domestic and foreign selection allowing to define the perspective directions in selection and breeding work for increase of efficiency of conducting dairy cattle breeding is defined.


Author(s):  
K.ZH. ZHUMANOV ◽  
◽  
T.N. KARYMSAKOV ◽  
M.A. KINEEV ◽  
M.V. TAMAROVSKIY ◽  
...  

According to the current “Instruction” used in dairy cattle selection and breeding in the Republic of Kazakhstan, bulls-producers of dairy breeds are assessed according to the their offspring quality based on the principle of “peer daughter”. This means that the phenotypic indicators of the daughters of the tested bulls are compared with the corresponding indicators of their peers. In European countries with developed dairy cattle breeding, as well as in Canada, the USA, etc., to ensure a reliable forecast of the genetic value of individuals (primarily, bulls-producers), use is made of the best linear unbiased forecast method (BLUP method). This method implies that the breeding value of producers is determined by the deviation values of the development of traits of the examined animal from its average values in the population. Especially urgent area is the research aimed at improving breeding programs, including assessing the breeding value of bulls-producers of dairy breeds using BLUP methods based on the productive qualities of the mass of dairy cattle in the Republic of Kazakhstan. The research material included the data on the phenotypic indicators of the milk productivity of first-calf cows (the amount of milk yield, the content of fat and protein in milk, the yield of milk fat and protein) of the Holstein black-motley dairy cattle breed, obtained from the information and analytical database of the Republic of Kazakhstan for 2016–2017. It was found that when evaluating according to the official “Instruction”, 16 sires out of 256 bulls (6.2%) got the stud category in 2016, 14 sires (9.2%) out of 152 bulls in 2017, and – 30 sires of 249 bulls (12.0%) over the cumulative period. The results of the conducted research prove that the use of the classic “Instructions” in dairy cattle breeding has lower efficiency (by 42.8–90.0%) as compared with the assessment of the breeding value of bulls based on the BLUP method.The selection of sire bulls into breeding groups based on the “peer daughter” methodology is not reliable enough and rather ineffective. Comparing the results of assessing the breeding qualities of sire bulls, obtianed using two methods in all compared periods (2016, 2017, 2016–2017), the authors established a clear superiority of the BLUP method over the current Instruction used in the Republic of Kazakhstan.


Author(s):  
V. V. Makarov ◽  
D. A. Lozovoy

  Enzootic bovine leucosis (EBL) has been known for more than a century and a half. Its occurrence and registration may have historically been associated with intensive breeding of dairy cattle in Western Europe to increase target productivity. It is known that any limiting intervention in the nature of the animal organism is always accompanied by an uncontrolled and unpredictable change in the genotype of a wider range than the required, particularly negative order. In particular, a decrease in the resistance to macroorganisms and the possibility of the new diseases emergence, including infectious ones (for example, immunodeficiencies such as BLAD syndrome of black-motley cattle and stress syndrome in pigs, the occurrence of scrapie and other slow sheep infections). In the last two decades of the last century, in many disadvantaged countries, primarily Western European, national programs for the eradication of EBL have been developed and subsequently successfully implemented. First of all the motivation was the economy of dairy cattle breeding (mainly the extension of productive age, as well as the tightening of requirements in international trade in cattle and bull products, breeding, pricing, etc.). In an analytical article are reviewed the elements of epizootology of EBL in the foreign countries with special attention to the situation in the USA, scenarios of various control programs, and promising methods for assessing the role of infected animals in the epizootic process. A critical assessment of the problem of EBL in the Russian Federation is given, the reasons for the ineffectiveness of against leucosis measures are discussed.


Author(s):  
E.E. Melnikova ◽  
◽  
S.N. Kharitonov ◽  
I.N. Yanchukov ◽  
L.V. Ionova ◽  
...  

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