Roditan, P., G.J. King, S. Subrod & P. Pongpiachan. 1996. Oestrus behaviour of Holstein cows during cooler and hotter tropical seasons. Anim. Reprod Sci. (accepted April, 1996)
King, G.J. 1990. Sexual behaviour in cattle. In: Studies on the reproductive efficiency of cattle using radioimmunoassay techniques. IAEA, Vienna. pp59-71.
Hurnik, J.F. and G.J. King. 1987. Estrous behavior in confined beef cows. J. Anim. Sci. 65:43l-438.
Walton, J.S. and G.J. King. 1986. Indicators of estrus in holstein cows housed in tie stalls. J. Dairy Sci. 69:2966-2973.
Sharpe, P.H. and G.J. King 1981. Postpartum ovarian function of dairy cows in a tropical environment. J. Dairy Sci. 64:672677.
King, G.J., J.F. Hurnik and H.A. Robertson. 1976. Ovarian activity and estrus in dairy cows during early lactation. J. Anim. Sci. 42:688692.
Hurnik, J.F., G.J. King and H.A. Robertson. 1975. Estrus
and related behaviour in postpartum Holstein cows. Applied Animal Ethology.
2:5568.