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All Journal Animal Production : Indonesian Journal of Animal Production
B Hartoyo, B
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary

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The Effects of L-Lysine HCl when Applied With Early Feed Restriction on Body Weight, Breast Meat Yields and Abdominal Fat of Male Broiler Chickens Sulistyawan, I Hari; Hartoyo, B
ANIMAL PRODUCTION Vol 7, No 3 (2005): September
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

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Penelitian ini bertujuan untuk mengetahui penggunaan penambahan L-lysine HCl dalam pakan yag diterapkan pada pembatasan pakan awal terhadap bobot badan, daging dada dan lemak abdomen pada ayam broiler jantan.  Seratus empat puluh empat DOC jantan strain Ross 208 secara random dialokasikan ke dalam 3 perlakuan penambahan     L-lysine HCL dan 2 perlakuan pengaturan pemberian pakan.  Pakan perlakuan diberikan sampai ayam berumur 35 hari, pembatasan pakan diberikan pada ayam umur 6 sampai dengan 12 hari.  Data yang terkumpul dianalisis ragam dengan pola factorial 2 x 3.  Analisis ragam menunjukkan baik perlakuan penambahan lysine maupun pengaturan pemberian pakan berpengaruh tidak nyata terhadap semua parameter yang diuji. Namun demikian ada kecenderungan penambahan lysine 1,13% mengasilkan bobot badan dan daging dada yang lebih tinggi serta menurunkan lemak abdomen. Penambahan L-lysine HCl dan pengaturan pemberian pakan tidak menghasilkan interaksi yang nyata terhadap semua parameter. Hal ini berarti pembatasan pakan tidak mempengaruhi kebutuhan lysine secara spesifik pada ayam broiler jantan. (Animal Production 7(3): 135-141 (2005) Kata Kunci: Ayam broiler, L-Lysine HCl, Pembatasan Pakan, Bobot Badan, Dada, Lemak Abdomen.
Voluntary Feed Intake and Growth of Local Sheep Fed on Road Side Grasses Following A 6-Week Feed Restriction Period Yuwono, P; Hartoyo, B; Priyono, A; Soeprapto, H
ANIMAL PRODUCTION Vol 2, No 2 (2000): May
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

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The purpose of this experiment was to investigate an adaptation time sheep to eat at a normal amount required by the local experiencing liveweight loss due to feed restriction, to investigate feed intake and feed digestibility and to investigate sheep growth following feed restriction. The experiment was conducted in The Experimental Farm of Faculty of Animal Husbandry, Unsoed. Twelve local sheep were randomly assigned to two different groups of treatment: namely, control (C) and restrictively Fed Animal (R). there were two periods through out the experiment, Period I (PI) and II (PII). During P I (6 week), Animals in group R were restrictively fed so that they lost live weight of approximately 15%. During P II Animals in group  R were than offered ad libitum. Whereas, animal in group C were fed ad libitum through out the experiment. The results of this experiment showed that animals in group R needed 17 days for adaptation to consume feed at a normal amount after they had experienced feed restriction for 6 weeks. Dry matter intake was not different between group C dan R. However, when it was expressed per metabolic live weight (g/Kg0,75), Dry matter intake for group R was significantly higher than that for group C (102.35 vs 91,79). Dry matter digestibility value for group R was higher than that for group C either during PI (62 vs 57%) or during PII (70 vs 61%). The rate of live weight gain was not different between C and R during period II. In conclusion, local sheep had capability of consuming more feed after resumption of full feeding for 17 days. (Animal Production 2(2): 47-52 (2000) Key words : local sheep, dry matter, organic matter, period, restriction, digestibility
The Effect Of Feed Restriction And Exercise On Growt Of Merino Sheep Hartoyo, B; Purbojo, S Widi; Yuwono, Pambudi; Soeprapto, Hery
ANIMAL PRODUCTION Vol 2, No 1 (2000): January
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

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Penelitian dengan judul “Pengaruh Pembatasan  Pakan dan Exercise terhadap Pertumbuhan Domba Merino” dilakukan untuk mempelajari perubahan bobot badan dan komposisi tubuh selama periode pembatasan pakan dan kerja (exercise) yang kemudian diikuti oleh pemberian pakan secara adlibitum dan berhenti bekerja.penelitian ini terdiri dari dua periode.Pada periode pertama, 1,5 ekor Domba Merino kastrasi umur 4-5 bulan dibagi menjadi tiga perlakuan ,yaitu pembatasan pakan dan exercise selama 2,50 jam (perlakuan I), pembatasan pakan tanpa Exercise (perlakuan II), serta pemberian pakan secara ad libitum tanpa Exercise (perlakuan III), yang masing-masing perlakuan diulang lima kali. Pada periode kedua ,semua domba diberi pakan ad libitum tanpa exercise. Hasil penelitian menunjukankan bahwa pada akhir penelitian periode pertama ,domba dalam perlakuan satu I dan perlakuan II mengalami penurunan bobot badan sebesar 28 dan 27 persen dari bobot badan awal. Selama periode kedua, domba dalam perlakuan I dan perlakuan II tumbuh lebih cepat dari pada domba perlakuan III. Pada akhir periode pertama, domba dalam perlakuan I kehilangan lemak lebih banyak dari pada perlakuan II.Selama periode ke dua ,penimbunan protein pada perlakuan I dan II lebih cepat dibanding  perlakuan III. Domba pada perlakuan III mengalami penimbunan lemak lebih banyak dari pada perlakuan I dan II. Domba pada perlakuan I dan II selama periode ke dua mempunyai kemampuan makan lebih tinggi per kilogram bobot badan metabolis dibanding domba pada perlakuan III. (Animal Production 2(1): 18-24 (2000)Kata kunci: pembatasan pakan , komposisi tubuh , kemampuan makan, pertumbuhan.
Effect of Fatty Acids Fiber Concentration in Broiler Ration to Cholesterol, HDL and LDL Blood Serum Hartoyo, B; Irawan, I; Iriyanti, Ning
ANIMAL PRODUCTION Vol 7, No 1 (2005): January
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

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Abstract

Cholesterol, HDL (High Density Lipoprotein) and LDL (Low Density Lipoprotein) in blood serum of broiler could can be controlled by food manipulation using different fatty acids and fiber content in ration. This research was planned to study the influence of fat i.e. cis-trans fatty acids and raw fiber content on feed to cholesterol, HDL and LDL biosynthesizing broiler blood serum. The research model was experimental and the design used was Completely Randomized Design in factorial pattern 2 x 3. The first factor was type of fat (L) : L1= cis fatty acid and L2 = trans fatty acid. The second factor was fiber content in feed (S) i.e. S1 = 5% ; S2 = 7%, and S3 = 9%. Each treatment was repeated four times, it means 24 observation. Variables observed were : cholesterol, HDL, LDL concentration in blood serum of broiler. The result indicated that the use of 5 % palm kernel oil and 5 % tallow fat in feed containing 5 %, 7 % and 9 % fiber respectively have unsignificant result (P>0.01) to cholesterol and LDL blood serum of broiler, but have significant to HDL concentration (P<0.01). The average cholesterol of blood serum was between 76.46 mg/dl (L2S3) to 99.88 mg/dl (control), HDL concentration was 21.19 mg/dl (L2S1) to 38.85 mg/dl (control), and LDL concentration was 46.83 mg/dl (L2S2) to 61.14 mg/dl (control). It can be concluded that feeding with far in the form of cis (palm kernel oil) or trans (tallow) when combined with proporsional fiber addition can be used as feed because it does not increase the cholesterol and LDL in broiler blood. The reduction of cholesterol as much as 23.53 % in control feed was found in treatment with 5 % tallow addition in combination with 9 % raw fiber content, HDL concentration was higher in treatment with palm kernel oil compared to tallow addition. (Animal Production 7(1): 27-33 (2005) Key Words : Cholesterol, HDL, LDL, Cis Fatty Acid, Trans Fatty Acid
Co-Authors A Priyono, A H Soeprapto, H Hery Soeprapto, Hery I Hari Sulistyawan, I Hari I Irawan, I Ning Iriyanti P Yuwono, P Pambudi Yuwono S Widi Purbojo, S Widi