'Jayanti' Rohu: The first genetically improved fish strain released in India, developed by ICAR-Central Institute of Freshwater Aquaculture (CIFA), Bhubaneswar, in scientific collaboration with WorldFish (AKVAFORSK, Norway).
Produced through multigenerational selective breeding (combined family selection) using founding stocks collected from five major Indian river basins (Ganga, Yamuna, Brahmaputra, Gomati, and Sutlej).
Jayanti rohu exhibits an average genetic gain of $17\%$ higher growth rate per generation and increased resistance to Aeromonas hydrophila.
Correct Option: Option 4 (Selective breeding).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
2
ICAR JRF Aquatic Animal Health Management 29 Jun 2024Shift 1
Macrophages: Professional phagocytes responsible for engulfing pathogens and presenting antigens.
Dendritic Cells: Professional antigen-presenting phagocytic cells.
Neutrophils: Highly active circulating granulocytic phagocytes producing reactive oxygen species (respiratory burst).
Thrombocytes: In teleost fishes, nucleated thrombocytes are non-mammalian and possess genuine, active phagocytic capabilities along with hemostatic functions.
All four types ((A), (B), (C), and (D)) exhibit phagocytic activity.
Correct Option: Option 3 ((A), (B), (C) and (D)).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
3
ICAR JRF Aquatic Animal Health Management 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
Which of the following has a role in iron metabolism in fish?
Transferrin: A monomeric serum glycoprotein ($70 - 80\text{ kDa}$) that plays a central physiological role in iron metabolism in teleosts.
It binds two ferric iron ions ($Fe^{3+}$) with high thermodynamic affinity and transports iron systemically to erythropoietic tissues and hepatocytes.
By sequestering free extracellular iron, transferrin also functions as an innate humoral immune barrier, denying iron to invading pathogenic bacteria (nutritional immunity).
Correct Option: Option 1 (Transferrin).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
4
ICAR JRF Aquatic Animal Health Management 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
Which of the following is not an antimicrobial peptide?
Interleukins (e.g., IL-1, IL-6): Soluble immunomodulatory signaling glycoprotein cytokines secreted by leukocytes to coordinate immune responses, not direct antimicrobial peptides.
Correct Option: Option 4 (Interlukin).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
5
ICAR JRF Aquatic Animal Health Management 29 Jun 2024Shift 1
Pus (Suppurative Exudate): An inflammatory exudate characteristic of acute purulent inflammation.
Consists predominantly of large accumulations of dead and dying Neutrophils (heterophils in fish), necrotic liquefied parenchymal cells, tissue debris, and digested microbial remnants.
Correct Option: Option 1 (Neutrophils).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
Report Issue / Suggest Correctionत्रुटि रिपोर्ट / संशोधन सुझाव
No official replies published yet for this questionइस प्रश्न पर अभी कोई आधिकारिक समाधान प्रकाशित नहीं है
Have an objection, typo, or doubt? Submit a report in Tab 1. Our subject experts will audit the question and publish the official resolution here.यदि आपको इस प्रश्न या उत्तर कुंजी में कोई आपत्ति है, तो 'त्रुटि रिपोर्ट' टैब से विवरण भेजें। हमारी विषय विशेषज्ञ टीम समीक्षा कर आधिकारिक समाधान प्रकाशित करेगी।