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Djokowoerjo Sastradipradja
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Pendekatan Metodologi Dalam Penelitian Metabolisme Pada Ruminansia Djokowoerjo Sastradipradja
Media Veteriner Vol. 4 No. 2 (1997): Media Veteriner
Publisher : Media Veteriner

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Abstract

Climatic factor of high temperatures and humidities of humid tropical countries, alongside with the occmence of diseases and parasites have created a complex situation in terms of the effect on animal production. Studies on quantitative  relationships for better understanding of digestion, metabolism and related areas are lacking. There are however a number of appropriate methodologies available for conducting onfarm metabolic research aiming at giving better understanding of animal production and health in the humid tropics. The paper discusses methodologies and experimental approaches developed in the authors's laboratory on growing,draft pregnant and lactating ruminants. Several examples of the results are presented.
Portal Blood Flow Of Femgle Growing and Lactating Goats on Different Food Intakes Djokowoerjo Sastradipradja; Dewi Apri Astuti; Harnowo Permadi; Pursani paridjo
Media Veteriner Vol. 4 No. 2 (1997): Media Veteriner
Publisher : Media Veteriner

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Net production or uptake rates of the portal drained viscera (PDV) were estimated by measuring portal venous blood flow (PBF) according to the Fidc principle in asmiation with measurement of arterio-venous blood concentration differences. H-paro-aminohippuric acid wes constantly infused into a mesenteric vein to measure PBF on female growing and lactating PE goats fed different levels of feed intakes. Cardiac output (CO) and whole body energy expenditure were measured by the carbondioxidee entry rate technique (CERT). PBF (n=2 for each group) of growing goats were 1032,624,652,486 and 394 mllmin for 100,90, 80,70 and60 % of ad libitum feeding which corresponded to 32.7, 17.4, 19.8, 14.8 and 13.7 % of CO. For lactating goats, PBF (n-2 each) were 500, 371 and 223 ml/min for 100, 90 and 80 % of ad libitum feeding, corresponding to 13.6, 13.7 atid 7.6 % of CO. The calorigenic effect associated with feed intake of growing goats varied in descending order from 45 to 20 % of total body energy expenditure, while that of lactrrting goats was around 7 %. Absorption of volatile fatty acids was proportional to level of dietary intake.
Throughout the developing world, working animals are still vital important power bases of the small farmers' systems of production and transportation. With economic development, there is a growing interest in the animals for pleasure purposes, not only for aesthetic value but also for sport requiring speed and stamina for racing and other physical performances. An understanding of the physiology of exercise of animals is therefore needed including practical application such as to evaluate c Djokowoerjo Sastradipradja; I Ketut Sumadi; I Gede Mahardika
Media Veteriner Vol. 6 No. 1 (1999): Media Veteriner
Publisher : Media Veteriner

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Abstract

Throughout the developing world, working animals are still vital important power bases of the small farmers' systems of production and transportation. With economic development, there is a growing interest in the animals for pleasure purposes, not only for aesthetic value but also for sport requiring speed and stamina for racing and other physical performances. An understanding of the physiology of exercise of animals is therefore needed including practical application such as to evaluate cardiorespiratory fitness and information on training for improvement in health related fitness and performance. Under the existing local condition, success have been reached to record heart rate of animals telemetrically over extended periods, and to measure longterm body energy expenditures of large animals (buffalo) involving energy balance approaches and ill vivo body composition measurements by the water displacement method. These measurements enable the development of a modest practical fitness guideline for exercising swamp/ water buffalo, e.g. V02 = (0.1 X + 3.4) ml/min/kg BW for walking, and V02 =(0.2 X + 3.4) ml/min/kg BW for trot at 100-250 m/min speed. This value at a given speed offers a measure of running economy. The value of the oxygen pulse as an index of fitness is presented, above 0.05 is regarded athletic, while lower than 0.05 is the opposite. For the female buffalo the value is 0.066 at rest but decreases with exercise of pulling a load due to moving the body with a slower speed. Male buffalo has a higher oxygen pulse, 0.094 at rest and increases with exercise. Training seems to improve the oxygen pulse. These data enable the calculation of the heart's stroke volume and the O2 debt, which are other parameters of fitness. The field of exercise physiology of athletic animals in Indonesia should be explored. The acquisition of a treadmill, blood gas analysis and ergocardiorespirometry equipment for large athletic animals would be an advantage.
Co-Authors DEWI APRI ASTUTI Harnowo Permadi I Gede Mahardika I Ketut Sumadi Pursani paridjo