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H. Sasongko
Faculty of Animal Science, Gadjah Mada University Jl Fauna 3, Bulaksumur, Yogyakarta
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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THE EFFECT OF CALCIUM AND PHOSPHORUS DIETARY LEVEL ON EGG PRODUCTION OF THE BANTUL LOCAL DUCK Sasongko, H.; Yuwanta, T.; Zuprizal, Z.; Supadmo, S.; Widiyono, I.
Journal of the Indonesian Tropical Animal Agriculture Vol 37, No 4 (2012): (December)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.37.4.257-262

Abstract

This study was conducted to determine the effect of various calcium and phosphorus levels on theproduction performance of Bantul Duck. A total of 270 female ducks, 26 weeks age, were used in thestudy with a 3x3 factorial treatment, which is a combination of three levels of Ca: 3.75; 3.25 and 2.75%and three levels of P: 0.45, 0.35 and 0.25%. Each treatment occupied three replication cages, each ofwhich consisted of 10 ducks. The experiment was conducted for 12 weeks.. Data recorded were: (a) feedintake (g/duck/day), (b) egg production (% HDA), and (c) feed conversion. All quantitative dataobtained during the study were analyzed by analysis of variance (ANOVA) using SPSS computerprogram. The results of the variables recorded did not show significantly difference. Increasing Ca levelon feed showed an increasing trend of egg production. The average feed consumption ranged at 151-159g/duck/day; egg production was 75-84%, and the feed conversion was 184-212 g/egg.
THE EFFECT OF TYPE OF FEED AND SLAUGHTER AGE ON THE PERFORMANCES AND CARCASS CHARACTERISTIC OF MALE ARAB CHICKEN Suryanto, E.; Sasongko, H.; Maryam, M.; Santosa, R.
Journal of the Indonesian Tropical Animal Agriculture Vol 34, No 3 (2009): (September)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.34.3.181-188

Abstract

An experiment was conducted to evaluate the effect of type of feed and slaughter age on the performancesand carcass characteristics of male Arab chicken. Thirty six male Arab chicken of seven weeks old weredivided into two groups, each group consisted of three cages with six chicken in each group. Two types ofration consisted of Ration One (Par-S + corn) containing 2904 kcal ME and 17 % CP, and Ration Two (BRII) containing 3100 kcal ME and 19% CP. The chicken were raised for seven weeks, weekly weighed, andrandomly taken for slaughter at 12 and 14 week old. The data collected were performances and carcasscharacteristics of the chicken. The data were analyzed using analysis of variance of completely randomiseddesign. The results showed that the chicken fed BR II consumed more protein and energy (483.7 g CP and7868.8 kcal ME) compared to the chicken fed BR I (444.0 g CP and 7586.1 kcal ME). Besides, the chickenfed BR II produced heavier final body weight (1142.5 g) than the chicken fed with BR I (1048.6 g) (P <0,05). Type of ration affected the tenderness of chicken. Slaughter age influenced carcass weight andcarcass physical composition of the chicken (P<0.05). Slaughter age affected the physical characteristic ofmeat. It could be concluded that male Arab chicken fed ration containing higher CP and ME (higher feeddensity) consumed more protein and energy, and finally had heavier final body weight. Slaughter age influencedcarcass weight, carcass physical composition and meat characteristics of the male Arab chicken.
Co-Authors E. Suryanto I. Widiyono M. Maryam R. Santosa S. Supadmo T. Yuwanta Zuprizal (Zuprizal)