Topics:
Animal Nutrition, Animal Refresher
Cause of Enzootic Neonatal Ataxia
Enzootic neonatal ataxia is caused by deficiency of:
- Copper — Correct Answer
- Manganese
- Zinc
- Selenium
Explanation:
Correct Answer: Copper
Enzootic neonatal ataxia, also known as Swayback or Swingback, is caused by copper deficiency in newborn lambs, kids, and calves. The hallmark pathological feature is demyelination of the CNS.
Copper Deficiency Diseases
| Disease | Species Affected | Feature |
|---|---|---|
| Enzootic neonatal ataxia / Swayback | Lambs, kids, calves | Staggering gait; demyelination of CNS |
| Steely / Stringy wool | Merino sheep | Loss of wool crimp and colour |
| Falling disease | Cattle | Sudden death due to cardiac failure |
| Salt sickness | Cattle | General ill thrift; anaemia |
Key Facts — Copper
- Copper-containing enzymes: Cytochrome oxidase, Uricase, Ceruloplasmin
- Feather pigment Turacin contains copper
- Sheep most susceptible to both Cu toxicity and Co deficiency
- Chemical defaunation of rumen: Copper sulfate & Sodium lauryl sulfate
Why Other Options Are Wrong
- Manganese → causes Perosis (slipped tendon) in chickens; not ataxia in neonates
- Zinc → causes Parakeratosis in pigs, Hyperkeratosis in cattle; no neonatal ataxia
- Selenium → causes Nutritional Muscular Dystrophy, Exudative diathesis; no ataxia/demyelination
📚 About this Topic — Animal Nutrition
This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.
