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All Journal Journal of Degraded and Mining Lands Management Animal Production : Indonesian Journal of Animal Production
I Wahyudi
Tadulako University, Central Sulawesi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary

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The Effects of Tropical Climate Stressor on Gamma Immunoglobulin Concentration of Serum and Colostrums of Dairy Cows of First and Second Parity Westra, IGKP; Wahyudi, I
ANIMAL PRODUCTION Vol 11, No 3 (2009): September
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.481 KB)

Abstract

The new born dairy calves serum containing extremely low antibodies (Ig) or nothing at all.  This means that their livability or mortality greatly depend on the antibody especially IgG of cow’s colostrums to sustain their passive immunity. An observation and analytical study was conducted to evaluate the effects of tropical climate stressor (TCS) on immunoglobulin gamma (IgG) concentration in three different climate locations in term of temperature (oC) and humidity (%). Those dairy farming locations were: (1) the cold or temperate climate in sub-district  Tutur, (2) the moderate climate in sub-district  Purwodadi and (3) the hot climate in sub-district Grati. Those three sub-districts are belong to District Pasuruan–East Java Province, Indonesia. For these purposes sample of 93 cows were determined using purposive sampling method and 29-33 blood samples (1.0 ml) of late pregnant cows (2–3 weeks pre partum) and colostrums samples (1,0 ml) from respective location were collected. Blood samples were measured for cortisol concentration (nmol/L) using radioimmunoassay (RIA) procedure and IgG serum and IgG kolostrum concentration (mg/ml)were measured using direct ELISA. The study was then set up to ensure factorial experimental design and conducted over summer season. SPSS for Window statistic program was applied to necessary statistical analysis. Results indicated: (1) Evidence of TCS significantly effected (P<0.05) the blood cortisol levels of the cows which was the lowest in the cold (22.28 mg/ml) and the highest in the moderate location (54.07 mg/ml),  (2) TCS was also affected IgG serum concentration (P<0.05) the lowest in moderate climate (4.76 mg/ml)  while between cold and hot climate was not different significantly, and (3) TCS did not  decline concentration of  IgG colostrums (P>0.05) but a tendency that IgG colostrums concentration in hot climate was the lowest. The results suggest that low level of IgG in hot and moderate climates as being critical and efforts must find out to elevate IgG colostrums concentration to provide adequate passive immunity and at the same time preventing calves mortalities. (Animal Production 11(3): 143-148 (2009) Key Words: tropical climate stressor, cortisol, serum, colostrum, gamma immunoglobulin
The potential of legume tree prunings as organic matters for improving phosphorus availability in an acid soil Wahyudi, I; Handayanto, E
Journal of Degraded and Mining Lands Management Vol. 2 No. 2 (2015)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2014.022.259

Abstract

A study that was aimed to elucidate roles of Gliricidia sepium and Tithonia diversifolia prunings and their extracted humic and fulvic acids on improving phosphorus availability and decreasing aluminum concentration in an Ultisol was conducted in a glasshouse. Thirteen treatments consisting of two prunings, six rates of pruning application (5, 7.5, 10, 20, 40 and 80 t/ha) and one control (no added prunings) were arranged in a randomized block design with four replicates. Each mixture of prunings and soil was placed in a pot containing 8 kg of soil and maize of Srikandi cultivar was grown on it for 45 days. At harvest, soil pH, P content and aluminium concentration were measured. Results of the glasshouse experiment showed that application of Gliricidia and Tithonia prunings significantly increased soil pH, reduced Alo concentration, increased Alp content, increased P availability, and increased P taken up by maize grown for 45 days. The optimum rate of both Gliricidia and Tithonia pruning should be 40 t/ha. However, at the same rate, optimum production gained by Tithonia would be higher than that of Gliricidia.
Co-Authors E Handayanto IGKP Westra, IGKP