“…until Day 14-16 with a lower mean value of 1-51-2-6 ng/ml in swamp buffalo (Kamonpatana e/ ai, 1979b;Jainudeen, Bongso & Tan, 1982;Kanai & Shimizu, 1984) compared to values of 4-00-4-26 ng/ml in Murrah buffaloes (Bachlaus, Arora, Prasad & Pandey, 1980;Arora & Pandey, 1982a). This is a real difference between breeds and is reflected in milk fat and whole milk progesterone measurements (Kamonpatana, Ngramsuriyaroj, Srisakwattana & Chantaraprateep, 1983a).…”