The survey of the intestinal parasites of the swine in Nakhon Pathom Province was performed by egg, oocyst and cyst identification in 346 fecal samples. In suckling piglets, 4.08%, 6.12%, 6.12%, 34.69%, 18.37%, and 22.45% were infected with Ascaris suum, Trichuris suis, Strongylates, Strongyloides ransomi, Coccidia and Balantidium coli respectively. The relative incidence of these parasitic infection was higher in the fattening pigs. Ascaris suum, Trichuris suis, Strongylates, Strongyloides ransomi, Metastrongylus spp. Coccidia, Balantidium coli and Trichomonad were found in 31.15%, 35.52%, 32.24%, 31.15%, 0.55%, 35.52%, 37.70% and 0.55% respectively of the fattening pigs. The percentage of breeding pigs infected with Ascaris suum, Trichuris suis, Strongylates, intestinal flukes, Coccidia, Balantidium coli and Trichomonad was found to be 9.65%, 4.39%, 68.42% 12.28%, 38.60., 42.98% and 0.88% respectively. By parasitic identification, the examination of the gastrointestinal tracts in 82 piglets, 1-8 weeks of age, revealed 2.44%, 67.07%, 39.02%, 40.24%, and 2.44% of the piglets infected with Ascaris suum, Strongyloides ransomi, Trichuris suis, Oesophagostomum spp. and Globocephalus spp. respectively. The control of Strongyloides ransomi infection was studied in 15 litters with the total of 132 suckling piglets, 1-2 weeks old. Each litter was divided into nontreated control and treated groups; but only the latter was orally treated once with 100 mg/kg. body weight of Thiabendazole. Each piglet was weekly weighed until weaned. The average increase in growth rate found to be equal, 0.89 kg. per week in both groups.

Examination to determine ovarian and uterine changes by palpation per rectum has been accepted as the most practical method, commonly used in cattle and horses. However, there has been no report of study on the feasibility and practicability of using such method in the Thai swamp buffalo. This study was conducted on ten healthy non-pregnant post subesent Thai swamp buffaloes selected at random. Examination per rectum for ovarian determinations was performed on every animal daily for one hundred and twenty consecutive days. Variance analysis shows that the average means of the length, width and thickness of the left ovary are 1.57 cm., 1.21 cm. and 0.68 cm. respectively while those on the right ovary are 1.65 cm., 1.23 cm. and 0.67 cm. respectively. The length and thickness of the right ovary is very highly significant, greater than those on the left every (P very much 0.01). The width of the right ovary is greater than that of the left ovary which is highly significant (P 0.01). The average means of the length and width of follicles on the left ovary are 1.7 cm. and 0.91 cm. respectively while those on the right ovary are 1.25 cm. and 0.95 cm. respectively. The length of the follicle on the left ovary is greater than that of the right ovary which is highly significant (P 0.01). The width of the follicle is greater on the right than on the left ovary (P, 0.05). Determination of sizes of corpora lutea were signified by +, ++, +++. Graphical analysis reveals extensive changes with irregular patterns. The comparison of the findings to the results of hormonal measurements by radioimmunoassay appears to be corresponding. The results show that the method of examination per rectum is applicable and practical for determinations of changes and status of ovaries of the Thai swamp buffalo thus valuable for future work in buffalo reproduction.

This paper proposes a third generation communication technical assistance programme to help governments bring about a better operational linkage between development programmes and communications sources. Development workers must be encouraged to apply all appropriate communications resources in ensuring the systematic flow of relevant information during the planning and implementation of development programmes. Communication workers must be motivated to activity support their country's development efforts and be trained to handle development messages properly. Communication support is only one element in the development process, but an important one for helping people understand, accept and properly apply new technology.