Topics: Animal Refresher, Poultry Science

False Statement About Tibial Dyschondroplasia

Which of the following statements about Tibial Dyschondroplasia is NOT true?

It is a leg disorder in broilers
It is a leg disorder in layers
Abnormal formation of cartilage in leg bones is involved
High dietary level of chloride may increase incidence

False Statement About Tibial Dyschondroplasia

Which of the following statements about Tibial Dyschondroplasia is NOT true?

Options

It is a leg disorder in broilers
It is a leg disorder in layers ✓
Abnormal formation of cartilage in leg bones is involved
High dietary level of chloride may increase incidence

Correct Answer: B

Explanation in English

Correct Answer (NOT TRUE): It is a leg disorder in layers

Tibial Dyschondroplasia (TD) is a leg disorder in BROILERS, NOT layers. It occurs due to abnormal cartilage formation in the proximal tibia (tibiotarsus), leading to lame birds and economic losses in broiler production.

Tibial Dyschondroplasia — Key Facts

Affects: Primarily fast-growing broilers (not layers).
Lesion: Abnormal, non-vascularised plug of cartilage in the growth plate of the tibia.
Predisposing factors: Rapid growth, high dietary chloride, dietary cation-anion imbalance, deficiencies of Vit. D, Ca, or P.
Clinical signs: Leg weakness, lameness, swollen hock joints.

Leg Problems in Poultry — Summary

Condition	Species Affected	Cause
Tibial Dyschondroplasia	Broilers	Abnormal cartilage; high Cl diet
Perosis (Slipped tendon)	Both	Mn, Biotin, Choline, Folic acid deficiency
Cage Layer Fatigue	Layers	Ca, P, Vit. D deficiency + no exercise
Swollen hock syndrome	Both	Zinc deficiency

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This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.

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