Polynephritis in cattle, Biology

Assignment Help:

Polynephritis in cattle


Contagious bovine polynephritis is a specific infection of urinary tract of cattle. The causative agent is Corynebacterium renale, a rod shaped gram-positive bacteria which occurs in groups and bundles. The organism can be isolated from urine, vagina and male genital tract of healthy cattle. Cattle are seldom affected before maturity and cows appear to be much more susceptible than bulls. Sheep are also occasionally affected.


Transmission: It is thought that infection is not through blood but ascending from urethra and ureters, to the urinary bladder and kidneys. It may be possible that cattle may be symptom less carriers and under favourable conditions infection is established in upper parts of urinary tract. The incidence is highest in females during or immediately after pregnancy.


Symptoms: The first sign observed may be passing of blood-stained urine in an otherwise normal animal. In some animals there is acute colic, fluctuating temperature (39.5°C), capricious appetite, loss of condition or fall in milk yield. The urine contains albumen, red blood cells and pus. Urination may be frequent and painful. There may be apparent recovery followed by remissions. The course of the disease may be several weeks to even months. The terminal signs are uraemia.

Lesions: Polynephritis appears to develop as an ascending infection of urinary bladder, ureters and pelvis of kidney. The kidneys are usually enlarged and lobulation less evident than normal. Necrotic areas may be observed on the surface of pelvis. The ureters may contain blood, pus and mucus. The bladder and urethra are haemorrhagic, oedematous and eroded.Diagnosis: The diagnosis can be made on symptoms and post-mortem lesions.Confirmation is obtained by isolating the causal organism from urine or the lesions.


Treatment:
Several antibiotics inhibit C. renale but penicillin appears to be the drug of choice. In well-established cases where there is extensive tissue damage, the recovery is temporary.


Control: The isolation of affected animals and destruction of infected litter and bedding reduce the bacterial population of the local environment and the opportunity of transmission.


Related Discussions:- Polynephritis in cattle

Explain the the use of soy protein in food industry, The use of soy protein...

The use of soy protein concentrates in different applications in food industry is highlighted herewith. a. Bakery products Unlesss higher protein fortification leve

Digestion of carbohydrates, Digestion of Carbohydrates Digestion of foo...

Digestion of Carbohydrates Digestion of food starts in the mouth  itself by the action  of  enzyme  salivary  amylase  and  the  carbohydrates present  in  the food, particular

Two major causes of severe protein energy malnutrition, Explain Two major c...

Explain Two major causes of severe Protein Energy Malnutrition? Two major causes of severe PEM are diluted milk formulae and infections, especially diarrhoea in poor communiti

Chronic exposure of cadmium, Q. Chronic exposure of Cadmium? An increa...

Q. Chronic exposure of Cadmium? An increase in the soil cadmium content due to soil pollution by industrial wastes, burning of coal, fossil fuels, sewage sludge, medical and

Pocket psedocyst-endodontics principles and practice, Pocket Psedocyst : le...

Pocket Psedocyst : lesions present as endodontic origins from canals . It makes lumens resemble granuloma . All lesions lined until root canal or apical foramen communicat

What are flight adaptations present by birds, Q. What are flight adaptation...

Q. What are flight adaptations present by birds? Wings associated to a well-developed pectoral musculature, less accumulation, pneumatic bones of feces in the bowels due to the

Symptoms of angina pectoris, Q. Symptoms of Angina Pectoris? The pain o...

Q. Symptoms of Angina Pectoris? The pain of angina is usually over the center of the chest (below the sternum) but can be felt from epigastrum to the jaw and arms. It is brough

Define hormonal imbalance as a factor for obesity, Define Hormonal imbalanc...

Define Hormonal imbalance as a factor for obesity? Certain diseases associated with secretion of hormones, e.g., hypothyroidism, hypogonadism and Cushing's syndrome exhibit obe

Define the functions of vitamin e, Define the Functions of Vitamin E? V...

Define the Functions of Vitamin E? Vitamin E is the major lipid-soluble antioxidant in the cell antioxidant defence system and is exclusively obtained from the diet. The main r

Define the guidelines for calculating ideal body weight, Define the Guideli...

Define the Guidelines for Calculating Ideal Body Weight? What is the ideal body weight for me? Am I obese? Am I underweight? These are the questions that must have come to your

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd