Pengaruh Hormon Testosteron dan Umur terhadap Perkembangan Otot pada Kambing Kacang Betina

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Title Pengaruh Hormon Testosteron dan Umur terhadap Perkembangan Otot pada Kambing Kacang Betina
 
Creator Didik Rudiono
 
Subject Kacang doe, testosterone hormone, chronological age, muscle development
 
Description A total of 40 Kacang does with average initial body weight (BW) of 10.2 kg were used in factorialexperiment (4x2) based on completely randomized design (CRD) to determine muscle development. The first factor wasthe doses of testosterone consisted of four levels, i.e.: control (t0); 0.77 (t1); 1.54 (t2); and 2.31 (t3) mg/kg BW. Thesecond factor was the age of does, i.e.: 7-8 month (u1) and 9-12 month (u2). So that there were eight combinations oftreatments, each was replicated five times. Animals in treatment group were injected with testosterone propionate (TP)weekly for 90 days. They were fed on ration to gain 50 g/day. Variables observed were the number of fibril in longissimusdorsi and rectus femoris (pc/100ยต), the weight of longissimus dorsi and rectus femoris muscles, and Loin Eye Area (cm2).There was significant interaction between doses and age on the fibril number of longissimus dorsi and rectus femorismuscle, and also Loin Eye Area. The best result was showed by the combination treatment of t1 and u1. Testosteronepropionate injection did not significantly affect the weight of longissimus dorsi and rectus femoris muscles. Meanwhile,age significantly influenced weight of longissimus dorsi muscle only. In conclusion, injection of 0.77 mg/kg BW/day TPto does with 7-8 month of age showed the best result on muscle mass.
 
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Date 2008-01-20
 
Type Peer-reviewed Article
 
Format application/pdf
 
Identifier http://www.ijonline.net/index.php/JAP/article/view/110
 
Source Animal Production, Jurnal Produksi Ternak; Vol 9, No 2 (2007)
 
Language en