UDC 636.01
DOI: 10.36871/vet.zoo.bio.202206009
Authors
Maria M. Somova,
Pavel A. Filimonov,
Sergey N. Kashtanov,
Institute of General Genetics of the Russian Academy of Sciences,
Moscow, Russian Federation
Ekaterina E. Melnikova,
Agribusiness Holding "Miratorg", Moscow, Russian Federation
Abstract
By the method of the best linear unbiased prediction (BLUP), estimates of the breeding value of animals in the population of the sable breed "Saltykovskaya silver" were obtained. Genetic trends were investigated by characteristics: body length and the number of live puppies at birth; components of variances and selection and genetic parameters of the population for each of the considered characteristics were determined. To calculate the estimates, biometric models were developed that take into account fixed and randomized factors affecting the corresponding signs. The values of the assessment of animals by body size ranged from –1,46 cm to +1,61 cm with an average confidence of 28,3%, the values of the averages over the years fluctuated significantly. The trend line constructed by regression of the value of the estimate for the year of birth of an individual shows a slight decreasing trend in terms of both males and females. Analysis of the number of live puppies received from a female in one puppy showed a range of estimates from –0,14 goals to +0,23 goals. with an average confidence of 18,1 %. There were no reliably evaluated females in the entire study sample. The trend line also indicates a decrease in the average annual estimate in the population. The results obtained reflect the need to improve the effectiveness of the existing silver sable breeding program.
Keywords
sable, farm population, breeding value, genetic trend, BLUP
