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Hernias are a significant, non-infectious animal condition. In productive animals, failure to provide surgical treatment leads to premature rejection and potential loss of their productive longevity. Insmall pets, this becomes a social problem for pet owners related to thekeeping and death of affected animals. The aim of this study was to study the histological parameters of tissues during implantation of monofilament mesh in cattle for periods up to four months. The study wasconducted on eight bulls of the Black Motley breed, divided into two groups of four animals. In the first group, four bulls received a subcutaneous implant of hernioplasty mesh made of polypropylene monofilament (Herniamesh S.R.I. Via CiRie 22 / A, San Maruro Torinese, Torino, Italy) in the area of the lateral soft abdominal wall on the right and left sides. In the second group, four bulls received implants in the middle third of the neck to the right and left sides. Thus, the subject of research was 16 wounds with implanted mesh. A sterile piece monofilament mesh, 1x2 cm in size and folded in half along the longitudinal side, was inserted vertically into the formed hypodermic pocket on the right side of the wound, in which it was possible to freely place the specified mesh. During the course of the study, PolyconNo. 4 thread with intermittent knotted seams was used, and three sutures were applied. To ensure fixation of the mesh, it was stitched centrally. The material for histological studies was taken by biopsy at one, two, three and four months after implantation. Tissue was embedded in paraffin blocks, and sections were stained with haematoxylin-eosin and picrofuchsin according to Van Gieson. The results indicated that after subcutaneous implantation of monofilament mesh in the neck and abdominal wall in cattle, wound healing occurs by primary intention. It was revealed that from the beginning of the histological study to one month, the monofilament mesh is first overgrown with loose connective tissue. By the end of the study, after four months, this is sequentiallydifferentiated into dense connective tissue. No significant differenceswere observed between the abdominal wall and neck area as sites of implantation, and morphological processes in both sites proceeded in thesame way. Thus, the conducted studies allow us to conclude that monofilament mesh is a suitable material for closing the hernial ring incattle, where it is not possible to use their own tissues for these purposes.

Morphological indicators of subcutaneous implantation of monofilament mesh