Effects of different percent of undegradable proteins in the total dietary protein on physical properties of wool fibre

Abstract

The results obtained on the influence of different percents of undegradable proteins in the total dietary protein on physical properties of wool fibre in F1 lamb generation (Pramenka x Virtemberg) did not show significant or highly significant differences among investigated treatments. The level of undegradable proteins in concentrated mixtures used was 38 : 55 : 62% in these treatments. The total protein content was approximately the same over all treatments (17.24, 17.98 and 17.93%). The average wool fibre height on treatments I : II : III was 3.45 : 2.84 : 3.33 cm, length 4.83 : 3.83 : 4.16 cm, the number of curves per cm length was 4.34 : 4.30 : 3.95, while fibre diameter was 24.10 : 23.08 : 24.31 mm. A very uniform effect of investigated treatments on physical properties of wool fibre can be explained by a relatively short fattening period. Also the lambs were very young, hence, these treatments could be more pronounced in older animals.

U radu su prikazani rezultati ispitivanja uticaja različitog udela nerazgradivih proteina (38:55:62%) u ukupnom nivou proteina obroka na fizičke osobine vunenog vlakna kod jagnjadi F1 generacije (pramenka x virtemberg). Rezultati pokazuju da je prosečna visina vunenog vlakna po tretmanima I:II:III prosečno iznosila 3,45:2,84:3,33 cm, dužina 4,83:3,83:4,16 cm, dok je broj vijuga na 1 cm dužine vlakna iznosio 4,34:4,30:3,95 vijuga. Dijametar vlakna iznosio je 24,10:23,08:24,31 mm. Utvrđeno je da povećanje udela nerazgradivih proteina u obroku nije značajnije uticalo na fizičke osobine vunenog vlakna u navedenom uzrastu.