The Ural type of the domestic Black-and-White mottled breed cattle features high rates milk productivity, good suitability for industrial milking technology, but productive longevity is 2.4–2.6 lactations only, although in herds there are livestock cows with a up to 10 lactations. decline associated deterioration reproductive qualities cows. In result research it was found that most resistant l...

Locomotion is central to behavior and intrinsic to many fitness-critical activities (e.g., migration, foraging), and it competes with other life-history components for energy. However, detailed analyses of how changes in locomotor activity and running behavior affect energy budgets are scarce. We quantified these effects in four replicate lines of house mice that have been selectively bred for ...

Potato lines bred by intraspecific hybridization of Solanum tuberosum L. were evaluated on their textural properties in two consecutive years. The plants grown under mountain conditions at 1610 m altitude and harvested the end September. cutting test was performed using a Warner-Bratzler blade texture analyzer (TA) for obtaining maximum force to shear tubers. Textural parameters analysed right ...

Barley has properties that can improve and maintain human health, but to upgrade the positive characteristics of grain, specific breeding programs are required. Consumption chemically protected food is unpopular and, therefore, genetic sources disease resistance most frequent diseases essential. The aim this contribution postulate genes for powdery mildew in spring barley varieties bred consump...

Four lines of mice bred for high voluntary wheel running (HR lines) have high baseline circulating corticosterone levels and increased daily energy expenditure as compared with four non-selected control (C) lines. High corticosterone may suppress immune function and competing energy demands may limit ability to mount an immune response. We hypothesized that HR mice have a reduced immune respons...

Serotonin (5-hydroxytryptamine; 5-HT) is implicated in central fatigue, and 5-HT1A pharmaceuticals are known to influence locomotor endurance in both rodents and humans. We studied the effects of a 5-HT1A agonist and antagonist on both forced and voluntary exercise in the same set of mice. This cohort of mice was taken from 4 replicate lines of mice that have been selectively bred for high leve...

The Holstein breed of dairy cattle is the most widespread due to its high productivity (7000–11000 kg milk with 3.6–3.8 % fat and 3.0–3.2 protein), good adaptability a variety climatic, feed technological conditions, as well conversion ratio. In this regard, breeding animals breed, including pedigree creation optimal conditions for directional rearing young animals, great importance economy Rep...