Avian Physiology & Reproduction
The Division is focusing its research activities covering basic and applied aspects in four main thrust areas viz. Reproductive Physiology, Stress Physiology, Digestive Physiology and Molecular Physiology of diversified poultry species.
Research Activities & Achievements
Reproductive Physiology
- Causes of internal laying at molecular and endocrinal levels in broilers revealed and protocols for minimization of their effects were developed.
- A new selection parameter for improvement of egg number and size through the rate of maturation of ovarian follicles in the hen developed.
- Developed a simple method to determine daily yolk deposition rate in hens.
- Developed a formulation for early maturation of oviduct in hen.
- Developed a simple new method for the estimation of nitric oxide in biological materials, using copper-cadmium alloy.
- Developed technique for fertility predication test in male Japanese quail based on the size of cloacal gland and colour & volume of foam produced by the cloacal gland.
- A new and simple diluent for chicken semen developed and patented for preservation of chicken semen for about 24 h at low temperature.
Stress Physiology
- Elevation of stress resistance against one stressor (immobilization stress) helps the adaptation against another (summer stress).
- Catecholamines in egg yolk are good indicators of stress.
- Physiological mechanisms for functioning of stress hormones in chickens elucidated.
Digestive Physiology
- Enzymes status and absorption capability of different parts of digestive tract through mucosal homogenates and role of calcium in nutrient absorption evaluated.
- In situ technique for intestinal nutrient uptake under varied conditions explored.
Teaching Activities
| Course Code | Title of the Course | T/P | Course Instructor |
|---|---|---|---|
| PSC – 521 | General Avian Physiology | T | Jag Mohan / Jagbir Singh |
| PSC – 522 | General Avian Physiology | P | Jagbir Singh |
| PSC – 621 | Physiology of Avian Reproduction | T | Jag Mohan |
| PSC – 622 | Physiology of Avian Reproduction | L | Jagbir Singh |
| PSC – 623 | Avian Stress and Environmental Physiology | T | Jag Mohan |
| PSC – 625 | Avian Embryogenesis | T | Jagbir Singh |
| PSC – 626 | Avian Embryogenesis | L | Jagbir Singh |
| PSC – 721 | Advances in Avian Female Reproductive Physiology | T | Jag Mohan / Jagbir Singh |
Faculty Profiles
| S.No. | Name | Status |
|---|---|---|
| 1 | Dr. Jagbir Singh Tyagi | Principal Scientist & Head |
| 2 | Dr. M. Sirajudeen | Scientist |
| 3 | Dr. Gautham Kolluri | Scientist |
Technology Developed
- A process for the preparation of a new and simple diluent for chicken semen. Patent No. 191190 (2000).
- Developed technique for fertility predication test in male Japanese quail and new semen diluent for it.
- Protocols for minimization of causes of internal laying in broiler hens.
- Simple assay for determination of nitric oxide in biological samples.
- Phyto-hormonal remedial approach for correcting broiler breeder hen reproductive anomalies.
