Abstract
The present study investigated the supplementation of soursop leaves powder (Annona muricata L.) on body weight gain and carcass percentage of male Tegal duck. Research was conducted from 29 November 2015 to 3 January 2016 in duck cage in Sokaraja Kulon, Purwokerto. One hundred male Tegal duck were fed basal feed consisted of 30% corn, 7% soy bean meal, 6,1% vegetable oil, 17% poultry meat meal, 38,2% ricebran, 0,1% L-lysin HCL, 0,3% DL-methionin, 0,2% topmix, 0,1% NaCl, and 1% CaCO3. Experimental research used completely randomized design with treatments composed of basal feed plus 0, 5, 10, and 15% soursop leaves meal, each with 5 replicates. The observed variables were diameter of muscle fiber, lipid cell, body weight gain, and carcass percentage. The obtained data were subject to analysis of variance followed by orthogonal polynomial test. Result showed that treatments affected non significantly (P>0.05) to the diameter of chest muscle fiber, carcass percentage and carcass but significantly affected (P<0,05) body weight gain with equation Y = 427,74 - 67,10 X + 2,27 X2.. Conclusively, supplementation of soursop leaves meal (Annona muricata L.) in feed has not been able to increase the muscle fiber diameter of intermuscular lipid cell, carcass percentage and carcass parts. Excessive supplement even lowers the body weight gain of male Tegal duck.
Highlights
Tegal ducks are commonly farmed in Tegal regency and extended to West Java, Papua, Aceh, Lampung and South Sulawesi (Prasetyo et al, 2004; Susanti and Prasetyo, 2007)
Four-week male Tegal ducks weighing 1058.53±38.08 g from Duck Farmer Group “Bebek Kumbaran”, Negar Ayu village, Tonjong, Brebes is one native Indonesian breed used in the study, those that hatched at the same time
The shape of breast muscle fiber of male Tegal duck that were fed with soursop leaves meal was hexagon with core on the inside and endomysium tissue on the outside, while several other muscle fibers would form fasciculi
Summary
Tegal ducks are commonly farmed in Tegal regency and extended to West Java, Papua, Aceh, Lampung and South Sulawesi (Prasetyo et al, 2004; Susanti and Prasetyo, 2007). Antibiotic has long been used to prevent disease and increase performance of cattle but has negative effect on bacteria resistance in cattle and harms human health; the utilization of antibiotics to cattle feed is limited. This issue increases the use of natural ingredients as functional phytogenic feed (essential oil, flavonoid, saponin and tannin) to improve cattle nutrition, performance and health and the quality of cattle feed. The present study investigated the effect of supplementing soursop leaves meal on diameter of muscle fiber, lipid cell, growth and carcass percentage of Tegal duck
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
