Directory UMM :Data Elmu:jurnal:S:Small Ruminant Research:Vol38.Issue2.Oct2000:
Small Ruminant Research 38 (2000) 157±164
The use of polyethylene glycol to reduce the
anti-nutritional effects of tannins in goats fed woody species
M. Decandiaa,*, M. Sitziaa, A. Cabiddua, D. Kababyab, G. Mollea
a
Istituto Zootecnico e Caseario per la Sardegna, 07040 Olmedo, Italy
Sheep and Goats Department, Extension Service, Ministry of Agriculture, P.O. Box 7054, Tel Aviv 61070, Israel
b
Received 1 October 1999; accepted 21 March 2000
Abstract
The effect of polyethylene glycol (PEG) on intake and digestibility in Sarda goats either fed in metabolic crates or browsing
a Mediterranean scrubland, featured by tannin-rich species, was studied. In metabolic cages (Experiment 1) nine dry goats
were fed ad libitum with foliage of lentisk (Pistacia lentiscus L.) supplemented with 200 g per day of a concentrate and either
0, 25 or 50 g per day of PEG. In the scrubland (Experiment 2), with lentisk as main species, 20 goats at the end of lactation,
were supplemented with hay and concentrate, receiving 0 or 50 g per day of PEG. In both experiments the PEG did not affect
the diet intake. The in vivo CP digestibility of the diet raised from 37% without PEG to 71% with 50 g of PEG in Experiment
1 (P
The use of polyethylene glycol to reduce the
anti-nutritional effects of tannins in goats fed woody species
M. Decandiaa,*, M. Sitziaa, A. Cabiddua, D. Kababyab, G. Mollea
a
Istituto Zootecnico e Caseario per la Sardegna, 07040 Olmedo, Italy
Sheep and Goats Department, Extension Service, Ministry of Agriculture, P.O. Box 7054, Tel Aviv 61070, Israel
b
Received 1 October 1999; accepted 21 March 2000
Abstract
The effect of polyethylene glycol (PEG) on intake and digestibility in Sarda goats either fed in metabolic crates or browsing
a Mediterranean scrubland, featured by tannin-rich species, was studied. In metabolic cages (Experiment 1) nine dry goats
were fed ad libitum with foliage of lentisk (Pistacia lentiscus L.) supplemented with 200 g per day of a concentrate and either
0, 25 or 50 g per day of PEG. In the scrubland (Experiment 2), with lentisk as main species, 20 goats at the end of lactation,
were supplemented with hay and concentrate, receiving 0 or 50 g per day of PEG. In both experiments the PEG did not affect
the diet intake. The in vivo CP digestibility of the diet raised from 37% without PEG to 71% with 50 g of PEG in Experiment
1 (P