Effects of peroral supplementation of different forms of zinc on the ruminal mucosa of goat kids – a morphometric study

Černík, Julius; Pavlata, Leoš; Pechová, Alena; Mišurová, Ľubica; Jokverová, Olga; Luňáček, Jiří; Halouzka, Roman

doi:10.2754/avb201382040399

Acta Veterinaria > Archive > 2013, Vol. 82 > Issue 4 > Effects of peroral supplementation of…

Acta Vet. Brno 2013, 82: 399-403

https://doi.org/10.2754/avb201382040399

Effects of peroral supplementation of different forms of zinc on the ruminal mucosa of goat kids – a morphometric study

Julius Černík¹, Leoš Pavlata², Alena Pechová³, Ľubica Mišurová², Olga Jokverová², Jiří Luňáček⁴, Roman Halouzka⁵

¹University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Medicine, Department of Pathological Morphology and Parasitology, Brno, Czech Republic
²University of Veterinary and Pharmaceutical Sciences Brno, Ruminant and Swine Clinic, Brno, Czech Republic
³University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Department of Biochemistry, Biophysics and Chemistry, Brno, Czech Republic
⁴Brno University of Technology, Faculty of Business and Management, Department of Economy, Czech Republic
⁵University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Medicine, Department of Pathological Morphology and Parasitology,

The aim of the study was to identify the effect of supplementation of various forms of zinc on the ruminal mucosa and dimensions of ruminal papillae in 6-month-old goat kids. The experimental period lasted from weaning to slaughter (4 months). All 20 kids divided into four groups of five animals, were fed with the same feeding dose, which was different only in the quantity and form of zinc. Control group was without additional zinc supplementation (group A), the other groups were supplemented with zinc in the form of ZnO (group B), zinc in the form of chelate (group C) and zinc in the form of lactate (group D). Samples for histopathological and morphometric examination were collected after the slaughter of all animals from the bottom of saccus ruminis ventralis everytime from the same place. Significant differences were reported within the comparison of the length of ruminal papillae between groups B and C (P = 0.026) and B and D (P = 0.040), within the comparison of the width of ruminal papillae between groups A and D (P = 0.020) and within the comparison of the intensity of keratinisation of the mucosa of ruminal papillae between groups A and B (P = 0.034), A and C (P = 0.038) and A and D (P = 0.001). Histopathological and morphometric examination of ruminal mucosa indicated that the ruminal papillae of kids supplemented with zinc in the form of ZnO (group B) were better developed compared to the other groups. This result indicates better utilisation of the supplemented zinc in the form of ZnO.