Effect of GnRH administration at oestrus in lactating Holstein cows during heat stress
(Ullah et al., 1996)
- Experiment carried out during late summer
- A total number of 94 lactating Holstein cows used
- Gonadorelin or physiological saline administered at the moment of oestrus detection
- AI performed at 10-12h later
- Examination for pregnancy by rectal palpation at 45 days post AI
Ullah G., Fuquay JW., Keawkhong T., Clark BL., Pogue DE., Murphey EJ.
Effect of gonadotrophin-releasing hormone at estrus on subsequent luteal function and fertility in lactating Holsteins during heat stress.
J Dairy Sci 1996;79:1950-1953.
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