Water offered to birds is usually at ambient temperature. This means that for laying birds housed under controlled environmental conditions, the temperature of drinking water is held fairly constant, while for broiler chickens, water temperature decreases with age corresponding to a reduction in brooding temperature. It is only for the first few days of a chick's life that drinking water temperature is specified, where traditional management recommendations suggest the use of 'warm' water. However, there is little documented evidence supporting this recommendation. Birds drink more water at higher environmental temperatures, yet the cooling of water may result in even higher intakes. Table 2.30 outlines the results of a small scale study conducted with layers housed at 33°C.
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The first trimester is very important for the mother and the baby. For most women it is common to find out about their pregnancy after they have missed their menstrual cycle. Since, not all women note their menstrual cycle and dates of intercourse, it may cause slight confusion about the exact date of conception. That is why most women find out that they are pregnant only after one month of pregnancy.