Thesis (BS Biology) -- University of the Philippines Mindanao, 2003

Thirty individuals of Anglo-Nubian and 20 individuals of Philippine indigenous goats were analyzed to assess the genetic polymorphism in the two breeds through PAGE total protein profile of blood plasma and morphometric analyses. Twenty-six protein brands were observed in Anglo-Nubian and 15 protein bands in Philippine indigenous goats. The fastest moving band had an Rf value 0.962 and 0.705 for the Anglo-Nubian and Philippine indigenous goat, respectively. The slowest band for the Anglo-Nubian had an Rf value of 0.017 while 0.086 for the Philippine indigenous goat. The frequencies of protein bands were significantly different (P<0.01). Both populations were found to show genetic polymorphism. There were 46 banding patterns observed, 28 from the Anglo-Nubian and 18 from the Philippine indigenous goat. There was no common banding pattern between the two breeds. Generally, the similarity indices between two different banding patterns within Anglo-Nubian were lower than that within Philippine indigenous goats. There was no similarity between the Anglo-Nubian and the Philippine goats. Therefore, the two breeds were generally different based on plasma total proteins. The Anglo-Nubian had significantly higher body weights and body measurements than the Philippine indigenous (P<0.01). The best determinant for body weight was the heart girth in both populations with R2 equal to 0.74 and 0.71, respectively. For further accuracy, the use of combined variables is recommended. Based on the dendogram on morphological characters, a clear-cut separation was very evident between Anglo-Nubian and Philippine indigenous goats. The two populations were similar with a Euclidean distance value equal to 5.1. Therefore, the Anglo-Nubian was morphologically different from the Philippine indigenous goats. Both the PAGE total protein and morphometric analyses clearly indicate that Anglo-Nubian and Philippine indigenous goats are genetically distinct populations