Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
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1 st WorkshopXIII International Feed Technology SymposiumTribulus terrestris dry extractPresentationBulgarian scientists have recently discovered the potential <strong>of</strong> a dry plant extract fromannual herb Tribulus terrestris L (Zygophylaceae) in animal nutrition as ecologicaladditive to improve the production, reproductive functions <strong>and</strong> quality <strong>of</strong> products fromanimal origin, so as to get better their composition <strong>and</strong> the health in general. The folkmedicine uses this herb in human as aphrodisiacs, diuretics <strong>and</strong> as a medicine decreasingblood pressure, cholesterol <strong>and</strong> glucose. Substances found in herbs have stimulating <strong>and</strong>regulating effects on metabolic processes <strong>and</strong> could reduce environmental stress.Tribulus terrestris extract contains biologically active substances as steroids, saponins,flavonoids, alkaloids, unsaturated <strong>fatty</strong> <strong>acids</strong>, vitamins, tannins etc. The main activecomponents are saponins <strong>of</strong> the furostanol type: protodioscine <strong>and</strong> protograciline.Bulgarian product has trade name <strong>of</strong> Vemoherb-T, produced by firm <strong>of</strong> Vemo 99 Ltd.,S<strong>of</strong>ia, Bulgaria. Up to now, Bulgarian experimental works showed that Vemoherb - Thas: Significant positive effect on production (poultry); Sure positive effect onreproductive capacity <strong>and</strong> spermatogenesis (rams, White Plymouth Rock mini cocks <strong>and</strong>Guinea fowls, Nikolova et al., 2009); 29 % positive effect on serum testosterone (broilerparents, Kashamov, 2007); Significant positive effect on the blood level <strong>of</strong> Ca (poultry);Significant negative effect on the blood level <strong>of</strong> glucose (poultry); Sure negative effecton blood triglycerides <strong>and</strong> total cholesterol (poultry); Contradictory effect on bloodserum protein (poultry); No sure effect on egg yolk lipids <strong>and</strong> <strong>fatty</strong> aids composition(laying hens, Grigorova, 2008). There exist no data concerning the effect <strong>of</strong> dry extract<strong>of</strong> Tribulus terrestris, with trade name <strong>of</strong> Vemoherb-T produced by firm <strong>of</strong> Vemo 99Ltd., S<strong>of</strong>ia, Bulgaria in bulls <strong>of</strong> service. This study was conducted to asses the biologicaleffect <strong>of</strong> Vemoherb -T on the blood biochemical changes <strong>and</strong> sperm both quality <strong>and</strong>quantity in bulls <strong>of</strong> service.Material <strong>and</strong> MethodsMaterial: Animals: 9 bulls <strong>of</strong> service from three different breeds <strong>and</strong> different ages; Start<strong>of</strong> experiment: 06.11.2008; End <strong>of</strong> Experiment: 26.01.2009; Duration <strong>of</strong> experiment: 2 x40 days <strong>and</strong> after-effect control (40 days); Feeding: daily rations, by meadow hay (65%)<strong>and</strong> compound feed (35 %);Additive: Vemoherb T (3 mg/kg body weight/daily)79
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