As long as the cows are planted in the pasture, there will be a need to control the internal parasites. However, the level of parasite contamination in rangeland and in cows is not the same. More forage storage areas usually have more parasite capacity compared to poor pasture holdings. Cows that are enclosed in farmed areas are less likely to develop severe worms than those who are free to ranch. Young cows usually have more internal parasites than livestock Are elderly. Therefore, the methods of controlling internal parasites must be tailored to individual production situations.
The anti-worm line begins with understanding the life span of the parasites, detecting seasonal changes in parasite capacity, and implementing effective control costs. A successful worms program, together with good overall flock management, leads to an increase in milk production in cows, and thus leads to weight gain from calving.
This work is prohibited in adult cows near childbirth for safety reasons.
Milk especially at the beginning of lactation often has a negative energy balance due to lactation stress. These cows are more affected by cows that are late in lactation and lower milk levels.
Male males are also more susceptible to female cows for domestic parasites.
Parasitic effects can be divided into two categories:
Reducing livestock productivity, including reduced milk yield, body weight, altered prevalence, pregnancy rates, and … all are part of the subclinical symptoms: symptoms such as skin rash, anemia, inflammation, diarrhea, and so on. Other are clinical symptoms. Subclinical effects are more important for the manufacturer.