Gastrointestinal parasitosis of sheep on farms of the Poltava region

Sheep breeding is one of the most promising branches of agriculture and the most important branch of animal husbandry worldwide. For the successful development of the industry mentioned above, it is necessary to increase the number of sheep and the production of livestock products. One of the aspects of this task is the effective implementation of measures to control parasitic diseases in sheep, particularly those localized in the gastrointestinal tract. The work aimed to investigate the spread of gastrointestinal parasitoses among sheep of single-person peasant farms in the Poltava region. The studies established that the average infestation of sheep by causative agents of gastrointestinal parasitoses is 39.74 %. In the studied sheep, strongylidoses of the digestive organs (extensiveness of invasion – 20.19 %), trichuriasis (18.59 %), eimeriosis (18.27 %), monieziosis (6.73 %), strongyloidosis (6.73 %) and dicrocoeliosis (1.92 %). In 32.26 % of the studied animals, the invasions occurred in monoinvasions, and in 67.74 % – in the form of mixinvasions. Among the monoinvasions, dicrocoeliosic (10 % of monoinvasions), monieziosic (22.5 %), strongyloidosic (40 %), and eimeriosic (27.5 %) were recorded. A total of 10 types of mixinvasions were detected in sheep, where two-component associations of gastrointestinal parasites were most often registered (78.57 % of mixinvasions), and three-component associations of parasites were less frequently diagnosed (21.43 %). Among the two-component mixinvasions, strongyloidosic- eimeriosic and trichuriasic- strongyloidosic were most often diagnosed, where the indicators of the extensiveness of invasions were 5.77 and 5.13 %, respectively. Three-component mixinvasions were represented by an association of trichurises, strongylides of digestive organs and eimeries (3.21 %), trichurises, strongyloideses and eimeries (1.60 %) and moniezies, trichurises, and strongylides of digestive organs (0.96 %). The research results on the spread of gastrointestinal parasitoses in sheep will allow for taking into account the peculiarities of the course of mixinvasions and the composition of their co-members when carrying out treatment and preventive measures in single-person peasant farms of the studied region.