It is not possible to identify the parasite by the analysis of this photo.
A detailed microscopical study of the morphology of the parasite required for the correct taxonomic identification of the parasite. If you have fixed the parasite, please post microscopical images.
For proper Identification, individual parasite have to be studied. Through morphological features we can separate them by analyzing major group, such as trematodes, cestodes and nematodes. By seeing as above parasites from cow's stomach I think they are cestodes (if scolex present)
It looks like a nematode (certainly not a cestode). Look for common cow-nematodes in the scientific literature, e.g. trichostrongylidae or ascaridae ( e.g. Toxocara vitulorum) and compare morphologically (or use PCR if available).
Hi,you should isolate the worm and wash it with normal saline. I think it is nematode(round worm) if it is so you have to clear it by using lactophenol in order to identify it.
Light micrographs showing fresh specimens of Setaria spp. (Figs. 1-4 for the lateral view of the head. Figs. 5 and 7 for the lateral view of the posterior end. and Figs. 6 and 8 for the ventral view of the posterior end) Magnification on all id 400 times. Fig. 1. Female Setaria digitata. Fig. 2. Male S. digitata. Fig. 3. Female S. marshalli,Fig. 4. Male S. marshalli,Fig. 5. Female S. digitata. Fig. 6. A pair of the large lateral appendages is located at a long distance from the tail end of male S. digitata. Fig. 7. Female S. marshalli. Fig. 8. A pair of the small lateral appendages is visible at a short distance from the posterior end of male S. marshalli,Abbreviations: DP, dorsal projection; VP, ventral projection; LL, lateral lip
It is not actually easy to identify with certainty using that photo of yours, but from my experience with intestinal parasites of cattle, I can suggest that it can be a nematode (Ascaris of cattle).