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Toleransi Mikroba Rumen Kambing dan Domba Terhadap Penambahan Ekstrak Kasar Antinutrien Bungkil Biji Jarak Pagar (Jatropha Curcas L.) ke Dalam Ransum Berdasarkan Fermentabilitas Dan Kecernaan In Vitro*

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PETERNAKAN BERKELANJUTAN III

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PROSIDING
SEMINAR NASIONAL
PETERNAKAN BERKELANJUT AN III

Jatinangor,2 November 2011

"ROAD TO GREEN FARMING"
Editor:
Unang Yunasaf
Jasmal A. Syamsu
Osfar Sofyan
Agus Setiana

Arnan Yarnarn
Agung Purnornoadi
Tuti Widjastuti
Elvia Hernawan
Lilis Nurlina
Ellin Harlia
Andi Mushawwir
Wendry Setiyadi Putranto
Cecep Firmansyah
Endang Sujana
Rorni Zamhir Islami

Universitas Padjadjaran
Universitas Hassanudin
Universitas Brawijaya
Institut Pertanian Bogor
Universitas Syiah Kuala
Universitas Diponegoro
Universitas Padjadjaran
Universitas Padjadjaran

Universitas Padjadjaran
Universitas Padjadjaran
Universitas Padjadjaran
Universitas Padjadjaran
Universitas Padjadjaran
Universitas Padjadjaran
Universitas Padjadjaran

Fakultas Peternakan
Universitas Padjadjaran
ISBN: 978 - 602 - 95808 - 2-2

PROSIDING
SEMINAR NASIONAL PETERNAKAN BERKELANJUT AN III

Unang, dkk.

Cetakan Pertama 2012

Diterbitkan oIeh :


FakuItas Peternakan
Universitas Padjadjaran
ISBN : 978 - 602 - 95808 - 2-2

Hak cipta dilindungi Undang-undang, dilarang mencetak dan menerbitan sebagian
atau seluruh isi buku ini dengan cara dan dalam bentuk apapun tanpa seizin penerbit

ISBN : 978 - 602 - 95808 - 2 - 2

Seminar Nasional Petemakan Berkelanjutan Ke-3
Fakultas Pctemakan Universitas Padjadjaran
.. Road To Green Farming"

Toleransi Mikroba Rumen Kambing dan Domba Terhadap
Penambahan Ekstrak Kasar Antinutrien Bungkil Biji Jarak Pagar
(Jatropha Curcas L.) ke Dalam Ransum Berdasarkan Fermentabilitas
Dan Kecernaan In Vitro*
Anita S. Tjakradidjaja, Ibnu K. Amrullah, Hanifah Bulwafa
Departemen Nutrisi.dan Teknologi Pakan

Fakultas Peternakan - Institut Pertanian Bogor
JI. Agatis - Dramaga IPB Campus
Dramaga - Bogor 16680
Telefon/fax : 0251 8628149; email : [email protected]

Abstrak
Toleration of microbes from the rumen fluid of goat and sheep to the addition of
antinutrient crude extract of Jatropha (J.) Clircas L. seed meal was evaluated based
on in vitro fermentability and digestibility study. Antinutrient crude extract of J.
curcas L. seed meal was isolated to contain kursin as one important
antinutrientltoxin of J. curcas L. seed meal. Fermentability and digestibility
experiments were carried out following the two stages of Tilley and Terry (1963)
method that was modified by Sutardi (1979). Fermentability experiment was
conducted in a 2x4x2 factorial randomised block design; factor A was source of
rumen fluid microbes (goat and sheep), factor B was addition levels of antinutrient
crude extract of J. curcas L. seed meal to ration (0, I, 2 and 3 % v/w total ration),
and factor C was incubation period (0 and 3 hour). A factorial randomised block
design (2x4) was also used to carry out digestibility study with the treatments were
source of rumen fluid (factor A) and addition levels of anti nutrient crude extract of
J. curcas L. seed meal to ration (factor B). In both studies, rumen fluids from three

goats and sheep were used as the block. Variables measured were total VFA and
ammonia concentrations, total bacterial and protozoal populations, and dry matter
(OM) and organic matter (OM) digestibility coefficients. Data were analysed with
analysis of variance and differences among treatments were examined with contrast
orthogonal. The results demonstrated that source of rumen fluids affected total
bacterial population (P

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