Question

X = An indigenous milch breed of cow, Y = An exotic milch breed of cow, Z = A high milk yielding crossbreed of a cow. Identify X, Y and Z and choose the correct option.
A) X = Murrah, Y = Ayrshire, Z = Karan fires
B) X = Murrah , Y = Jersey , Z = Frieswal
C) X = Sahiwal, Y = Karan Swiss, Z = Ayrshire
D) X = Red Sindhi, Y = Ayrshire , Z = Karan fires

Answer 1

Hint:Landrace is a domesticated, locally adapted typical variety of animal or plant species that have evolved over time. Exotic varieties are used for crossbreeding purposes.

Complete Answer:
Red Sindhi is an indigenous dairy cattle breed. This breed is also known as Red Karachi and Sindhi. This breed is mainly found in the Karachi and Hyderabad districts of Pakistan. Colour is red with variations ranging from dark red to light, streaks of white. Milk yields range from 1100 to 2600 lb. Popularly used in crossbreeding systems.
Ayrshire is an exotic dairy cattle breed. Source of Ayrshire is in Scotland and is known to be the most majestic dairy breed. They are very healthy but tough to handle. They do not yield that much milk or butterfat as many of the other dairy breeds.
Two high yielding cross-breed strains, namely Karan Swiss and Karan Fries, have been produced at the Karnal National Dairy Research Institute. The breed was developed by crossing Holstein (Friesian) and Tharparkar. Holstein's cow originated in Europe. Holsteins are most easily recognised for their distinctive colour marks and excellent milk quality. In India and abroad, these cattle are known as Tharparkar because they originate in the district of Sind, the province of Sind. They need regular interaction with people to keep them from being timid and wild.

The correct answer is option D, X = Red Sindhi, Y = Ayrshire, Z = Karan fires.

Note:Exotic dairy cattle breeds were also known as Dunlop cattle or Cunningham cattle. In the cross-breeding of cows, two breeds are mated and the resultant female offspring are held as substitutes and mated back to one of the types.