EFFECT OF UREA AMONIATION, HIDROLIZED POULTRY FEATHER, CASSAVA LEAVES, AND MIXTURE OF LYSINE—ZlNC-SARDINE FISH OIL ON FEED UTILIZATION IN LACTATING DAIRY COW
Muhtarudin Muhtarudin(1*), Toha Sutardi(2), Toto Tahormat(3), Erwanto Erwanto(4)
(1) Dept. Animal Production, Faculty of Agriculture-University of Lampung, Bandarlampung
(2) Dept of Animal Nutrition And Feed Science, Faculty of Animal Science-IPB, Bogor
(3) Dept of Animal Nutrition And Feed Science, Faculty of Animal Science-IPB, Bogor
(4) Dept. Animal Production, Faculty of Agriculture-University of Lampung, Bandarlampung
(*) Corresponding Author
Abstract
The objectives of this study were to evaluate t.he efficiency of urea amoniation of
elephant grass, the use of hydrolyzed poultry feather as the source of S-containing
amino acids, the use of cassava leaves as the source of branched-chain amino acids,
and mixture of lysine, Zn-sardine fish oil as a modulator for ruminal and post
rurninal detestation. The study consisted of five dietary treatments, i.e.A= 40%
elephant grass (EG) + 60 % Concentrate mix (CM), B = 40% urea-arnrnoniated
EG=60% CM, C = B+3% hidrolized poultry feather (HPF), D = C + 15 % cassava
leaves, and E = D + 1.06% Mixture of Lysine-Zn-sardine fish oil. The experiment
was a 5 x 5 Latin Square Design five lactating dairy cows. Digestibility of organic
matter (71.69 vs 74.35%) and milk production of lactating dairy cows were
significantly improved (12.36 vs 13.47 kg day“) by hydrolyzed poultry feather
(P,0.05). Milk production, milk fat content, and some long chain fatty acids were
significantly afiected by the mixture of lysine-Zn-sardine fish oil inclusion in the
diet of lactating dairy cows. Based on some metabolic parameter and production
per-fomrance, E diet was superior and it could be recommended for lactating dairy
cows diet.
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