Final answer:
The statement is True. Clinical signs of Dictyocaulus viviparus include tachypnea, coughing, and dyspnea.
Step-by-step explanation:
Dictyocaulus viviparus is a parasitic nematode that commonly infects cattle, causing a condition known as bovine lungworm disease. Tachypnea, or rapid breathing, is one of the key clinical signs observed in infected animals. This is often accompanied by coughing, as the parasites irritate the respiratory tract, leading to the expulsion of mucus and worms. Dyspnea, characterized by difficulty in breathing, is another significant symptom caused by the damage to lung tissue and the obstruction of airways by the parasites.
These clinical signs are crucial indicators for veterinarians to diagnose and treat the infection promptly. Monitoring the respiratory rate, observing coughing episodes, and assessing the overall breathing difficulty in cattle help in confirming the presence of Dictyocaulus viviparus. Early detection is essential for implementing effective treatment strategies to minimize the impact on the animal's health and prevent the spread of the parasite within the herd.
Understanding and recognizing these clinical signs play a vital role in managing the health of livestock and preventing economic losses associated with lungworm infections. Veterinary professionals rely on these observable symptoms to make informed decisions regarding appropriate therapeutic interventions. Regular health checks and prompt treatment are imperative to mitigate the negative effects of Dictyocaulus viviparus on cattle populations.