The potency of mulberry leave in increasing the nutritive value of rice straw as beef cattle feed
POTENSI DAUN MURBEI DALAM MENINGKATKAN NILAI
GUNA JERAMI PADI SEBAGAI PAKAN SAPI POTONG
SYAHRIANI SYAHRIR
SEKOLAH PASCASARJANA
INSTITUT PERTANIAN BOGOR
BOGOR
2009
PERNYATAAN MENGENAI DISERTASI DAN
SUMBER INFORMASI
Dengan ini saya menyatakan bahwa disertasi Potensi Daun Murbei dalam
Meningkatkan Nilai Guna Jerami Padi sebagai Pakan Sapi Potong adalah
karya saya dengan arahan dari komisi pembimbing dan belum diajukan dalam
bentuk apa pun kepada perguruan tinggi mana pun. Sumber informasi yang berasal
atau dikutip dari karya yang diterbitkan maupun tidak diterbitkan dari penulis lain
telah disebutkan dalam teks dan dicantumkan dalam Daftar Pustaka di bagian akhir
disertasi ini.
Bogor, Agustus 2009
Syahriani Syahrir
NRP D061060011
ABSTRACT
The Potency of Mulberry Leave in Increasing the Nutritive Value
of Rice Straw as Beef Cattle Feed
S. Syahrir, K. G. Wiryawan, A. Parakkasi and M. Winugroho
Mulberry leave have a great potential as animal feed because of its high nutrient
content. It also has deoxynojirimycin (DNJ) compound, that potential to increase
fermentability of fibrous feed in ruminal systems. The aim of the experiments
were to investigate: the role of mulberry leave extract (MLE) containing DNJ in
inhibiting the hydrolysis of non structural carbohydrates in the rumen; the effect of
fermented MLE utilization in mice feed as animal model for the post ruminal
system and to investigate the potency of mulberry leave as concentrate substitution
in the beef cattle feeding. The first experiment used rumen crude enzymes and in
vitro fermentation studies of MLE to investigate the inhibition of non structural
carbohydrates hydrolysis in the rumen; the second experiment used mice as
animal model with six treatments: P0 (semi purified diet) as a control,
P1(P0+fermented rumen liquid without MLE), P2 (P1+MLE containing 0,03%
DNJ), P3 (P1+ fermented MLE containing 0,03% DNJ), P4 (P1+MLE containing
0,06% DNJ), P5 (P1+ fermented MLE containing 0,06% DNJ) and the third trial
using ongole crossbreed cattle with three treatments i.e., P1 (rice straw 50% +
concentrate 50%), P2 (rice straw 50% + concentrate 25% + mulberry leave 25%),
P3 (rice straw 50% + mulberry leave 50%). The results of the experiment showed
that MLE could inhibit the hydrolysis of non structural carbohydrates in the
rumen, especially maltose. The DNJ compound of MLE could also improve
fermentability in the rumen. MLE significantly (P
GUNA JERAMI PADI SEBAGAI PAKAN SAPI POTONG
SYAHRIANI SYAHRIR
SEKOLAH PASCASARJANA
INSTITUT PERTANIAN BOGOR
BOGOR
2009
PERNYATAAN MENGENAI DISERTASI DAN
SUMBER INFORMASI
Dengan ini saya menyatakan bahwa disertasi Potensi Daun Murbei dalam
Meningkatkan Nilai Guna Jerami Padi sebagai Pakan Sapi Potong adalah
karya saya dengan arahan dari komisi pembimbing dan belum diajukan dalam
bentuk apa pun kepada perguruan tinggi mana pun. Sumber informasi yang berasal
atau dikutip dari karya yang diterbitkan maupun tidak diterbitkan dari penulis lain
telah disebutkan dalam teks dan dicantumkan dalam Daftar Pustaka di bagian akhir
disertasi ini.
Bogor, Agustus 2009
Syahriani Syahrir
NRP D061060011
ABSTRACT
The Potency of Mulberry Leave in Increasing the Nutritive Value
of Rice Straw as Beef Cattle Feed
S. Syahrir, K. G. Wiryawan, A. Parakkasi and M. Winugroho
Mulberry leave have a great potential as animal feed because of its high nutrient
content. It also has deoxynojirimycin (DNJ) compound, that potential to increase
fermentability of fibrous feed in ruminal systems. The aim of the experiments
were to investigate: the role of mulberry leave extract (MLE) containing DNJ in
inhibiting the hydrolysis of non structural carbohydrates in the rumen; the effect of
fermented MLE utilization in mice feed as animal model for the post ruminal
system and to investigate the potency of mulberry leave as concentrate substitution
in the beef cattle feeding. The first experiment used rumen crude enzymes and in
vitro fermentation studies of MLE to investigate the inhibition of non structural
carbohydrates hydrolysis in the rumen; the second experiment used mice as
animal model with six treatments: P0 (semi purified diet) as a control,
P1(P0+fermented rumen liquid without MLE), P2 (P1+MLE containing 0,03%
DNJ), P3 (P1+ fermented MLE containing 0,03% DNJ), P4 (P1+MLE containing
0,06% DNJ), P5 (P1+ fermented MLE containing 0,06% DNJ) and the third trial
using ongole crossbreed cattle with three treatments i.e., P1 (rice straw 50% +
concentrate 50%), P2 (rice straw 50% + concentrate 25% + mulberry leave 25%),
P3 (rice straw 50% + mulberry leave 50%). The results of the experiment showed
that MLE could inhibit the hydrolysis of non structural carbohydrates in the
rumen, especially maltose. The DNJ compound of MLE could also improve
fermentability in the rumen. MLE significantly (P