Temperature is considered to have a governing effect on the appetite of shrimps. Unlike mammals, shrimps are classified as homeotherms, characterized by a body temperature that follows that of the environment. Because body temperature influences the physiological rates, feeding and metabolism are dependent on the ambient temperature in the environment. A drop in temperature slows down the metabolic rate and thus markedly depress the demand for food. Feeding drops during cool months with appetite generally poorest between late evening to early morning. Feeding is maximal during the warm summer months, but mid-day feeding may be depressed when the water temperature is very high. As a factor that govern biological rates, body temperature is considered to have a more significant effect on the feeding levels than body size. This is predominantly the case in sub-tropical farming conditions (Cruz, 1991).