Poultry Management

• Gir Cattle Breed Profile:
• Origin: Gir forests of Kathiawar (Gujarat).
• Conformation:
• Prominently convex, bulging forehead (shield-like) protecting the brain.
• Heavy, long, pendulous drooping ears that resemble a curled leaf (folded like a scoop), hanging loosely downwards.
• Horns originate from the base of the crown and curl backwards and downwards.
• Famous milch breed of indigenous zebu (Bos indicus) cattle.
• nalysis:
• (Gir): Correct breed characterized by drooping ears.

Correct option: (3) Gir

• Longitudinal Distribution (West to East):
• Surti (C): Native to Anand, Kaira, and Baroda districts of Gujarat ($\approx 72.5^\circ\text{E}$ Longitude - Westernmost).
• Purnathadi (D): Native to Vidarbha region (Purna river valley, Akola/Amravati) of Maharashtra ($\approx 77^\circ\text{E}$ Longitude).
• Chhatisgarhi (A): Native to plains of Chhattisgarh ($\approx 81.5^\circ\text{E}$ Longitude).
• Chilika (B): Native to the coastal lagoon perimeter of Chilika lake in Odisha ($\approx 85.3^\circ\text{E}$ Longitude - Easternmost).
• Correct West to East Sequence:

• nalysis:
• ((C), (D), (A), (B)): Correct.

Correct option: (3) (C), (D), (A), (B).

• Pastoral and Migratory Cattle Breeds:
• Belahi (B): Distinctive migratory cattle breed of Haryana and Himachal foothills reared by Gujjar pastoralists on forest grazing.
• Gojri (C): Dual-purpose migratory breed maintained by nomadic Gujjars in Punjab and Himachal Pradesh.
• Sanchori (D): Native to Jalore/Barmer districts of Rajasthan, maintained under extensive pastoral migratory systems.
• Kankrej (A): Sourced primarily in Banaskantha/Kutch, though pastoral, the northern hill/semi-arid pastoral migratory groups include Belahi, Gojri, and Sanchori.
• nalysis:
• ((B), (C) and (D) only): Correct.

Correct option: (1) (A), (B) and (D) only.

• True (Exclusive) Constituents of Milk:
• Certain chemical components of milk are synthesized de novo exclusively by mammary secretory epithelial cells and are found nowhere else in the natural world:

• Lactose (Milk Sugar): A disaccharide of glucose and galactose synthesized exclusively in the Golgi apparatus by the enzyme complex lactose synthase.
• Casein: Phosphoproteins ($lpha_{s1}, lpha_{s2}, eta, \kappa$-caseins) synthesized exclusively in mammary ribosomes, organizing into calcium phosphate micellar structures.
  • nalysis:

• (Lactose and Casein): Correct unique true milk constituents.