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  • Title: Fasting energy metabolism of the Yucatan miniature pig.
    Author: Parsons AH, Mathieson KW, Tagliaferro AR.
    Journal: Lab Anim Sci; 1990 Mar; 40(2):162-4. PubMed ID: 2157095.
    Abstract:
    The fasting metabolic rates (FMR) of Yucatan miniature swine were determined using an open-circuit indirect respiration calorimeter. Mature nulliparous females had a mean FMR of 93 kcal/kg BW.75 and did not change significantly during the estrous cycle. This value is comparable to that observed in mature domestic swine. The calculated metabolizable energy requirement for maintenance for the Yucatan sow is 116 kcal/kg BW.75. Growing Yucatan boars had FMR of 127, 119 and 101 kcal/kg BW.75 at 15, 21 and 38 weeks of age, respectively, and were similar to values for comparably aged domestic swine. The calculated estimate for the metabolizable energy requirement for maintenance for Yucatan boars ranged from 158 kcal at 15 weeks of age to 126 kcal/kg BW.75 for 38 week old animals. Based on the similarity between the FMR of the Yucatan miniature swine in the present study and values published for standard size commercial hogs, it is concluded that the metabolic rates of these breeds of pig are similar. It is suggested that the daily energy needs of the Yucatan miniature pig may be met using values published for production livestock having similar physiological condition when adjusted for the smaller body size of the Yucatan breed.
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