Fasting heat production of Muzaffarnagari sheep

The effect of body fatness on energetic efficiency and fasting heat production in adult sheep.

The effect of body fatness on the fasting heat production and energetic efficiency of adult sheep was studied. Energy balance and heat production were determined in adult wether sheep at three fatness levels given a diet of grass hay and maize at four feeding levels, including fasting, in open-circuit respiration chambers. The sheep weighted approximately 60 kg at the start and were fed over a ...

The fasting metabolism of adult wether sheep.

The heat produced when an animal is fasted in an environment which is neither too hot nor too cold to cause increases in metabolism is a measure of the energy needed to maintain that animal. When man is the subject, muscular repose can invariably be assured and the measurement of heat production is termed the basal metabolism. Most animals do not co-operate in the way that man does and their he...

Energy metabolism with particular reference to methane production in Muzaffarnagari sheep fed rations varying in roughage to concentrate ratio

Methane production in Muzaffarnagari sheep was studied using open circuit respiration calorimetry technique. Twelve rams were divided in three treatment groups of four each and were fed at about maintenance with diets having three roughage (oat hay) to concentrate ratio (R : C), i.e. 92 : 8 (group I), 50 : 50 (group II), 30 : 70 (group III). Concentrate mixture was formulated to contain 93% cru...

Erratum to "Carbon and nitrogen balance studies in Muzaffarnagari sheep fed diets varying in roughage and concentrate ratio"

The heatincrement in fasting sheep of acetic acid partially neutralized with sodium hydroxide.

In previous work Armstrong & Blaxter (1957) found that when acetic acid was given to fasting sheep as the sole source of energy it was inefficiently utilized in the sparing of body tissues from oxidation. Five experiments gave a mean heat increment of 40.9 kcal/Ioo kcal of acid metabolized, a value which greatly exceeded the heat increments found when propionic or n-butyric acids were given. A ...