Question

गाय की एक प्रजाति "जेबा" गर्मी में रहने के लिए अनुकूलित हैं। एक और प्रजाति "साहिवाल" सालभर में लगभग 20,000 लीटर दूध देती है। "अंगुस" नामक एक अन्य प्रजाति का शरीर सुदृढ़ हैं। छत्तीसगढ़ में किसी गाय से ज्यादा दूध प्राप्त करना हो तो इनमें से किन गायों में संकरण करना होगा और क्यों?

A variety of cow named "zeba" is adapted to survive in hot
conditions. Another variety "Sahiwal" gives 20,000 liters of milk
every year. The variety "Angus" has a well built body. If we want to
acquire maximum milk from a variety of cow in Chhattisgarh, which
varieties of cows do you think must be crossed and why?
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Answer 1

Answer:

Zeba and Sahiwal

Explanation:

Because zeba is adapted to hot weather and Sahiwal gives large quantity of milk

Answer 2

If we want to acquire maximum milk from a variety of cows in Chhattisgarh, the Zeba and Sahiwal cows must be crossed.

• The Chattisgarh lies near the tropic of cancer and hence, it has a tropical climate with hot and humid conditions.
• As Zeba is adapted to survive in hot conditions and Sahiwal gives a large quantity of milk every year, hence, the crossing of both cow varieties will give a hybrid having both characteristics. The hybrid obtained will have genes to survive in the hot climate of Chattisgarh.