Dynamics of changes in sows with different stress sensitivities. Energy content and reproductive function in the organism under conditions of intensive technology

      Аннотация: In the book, for the first time, using the turpentine method for determining stress sensitivity, based on the peculiarities of the manifestation of the local adaptation syndrome, a comparative characteristic of changes in the body of energy-plastic substances and the productivity of sows with different stress sensitivity in connection with their age under conditions of intensive use is given. Reproductive function in stress-resistant sows with age under conditions of intensive use increases up to the third farrowing inclusive. During the first three reproductive cycles, it increases by 2.4-22.4%. From the fourth farrowing, productivity decreases and reaches its lowest values ​​during the sixth cycle. In stress-sensitive sows, reproductive performance is lower than in stress-resistant sows. During the first three reproductive cycles, they increase less by 2.5-23.7%. From the fourth reproductive cycle, the level of productivity in stress-sensitive and stress-resistant queens becomes equal, as a result of a more intense decrease in the values ​​of the determined indicators in resistant animals. After the sixth farrowing in stress-resistant uterus, they were lower than in stress-sensitive uterus.

Ключевые слова: sows, stress sensitivity, stress tolerance, energy substances, plastic substances, energy-plastic potential, idle state, pregnancy state, lactation state, reproductive function, Свиноматки, стрессовая чувствительность, стрессовая устойчивость, энергетические вещества, пластические вещества, энергопластический потенциал, холостое состояние, супоросное состояние, состояние лактации, воспроизводительная функция