THE EFFECTS OF DIFFERENT LEVELS OF SKIMMED MILK POWDER ADDED TO LAYER MASH IN THE LAYING PERFORMANCE OF QUAIL（Coturnix coturnix)

This thesis aims to determine “The effects of different levels of skimmed milk powder added to layer mash on the laying performance of quails (Coturnix coturnix). It was conducted on October 24, 2018 to December 22, 2018 at Poultry house, Mindanao State University. The birds were bought from Montoya farm at Polomolok, South Cotabato. The experiment was laid out in a Completely Randomized Design (CRD), with three treatments and replicated three times. Twenty-Seven quail-hens was used in the study. During the first week of the bird's arrival they were fed with booster mash and gradually shifted to layer mash feeds. Feed consumption of hens fed with 10% SMP recorded the highest of 1468.6g; while those hens fed with layer mash alone consumed 1410g. Egg production was highest in hens fed with pure layer mash with 84.623% and the lowest was 47.22% from 10% SMP. For the weight of eggs, 10.27g has the highest with 5% SMP, and the lowest egg was from 10% SMP with 9.29g. The most efficient feed converters were those with hens fed with layer mash alone with 334.25g and the poorest feed converter was hens fed with 10% SMP having 698.66g. The cost and return analysis showed that hens without SMP has the highest income of 8.01 pesos, the hens with 10 ％ has the lowest income of -1.4 pesos. In this study, the hens that performed well were from birds without skimmed milk.