EFFECT OF SUBSTITUTION DATE BY BARLEY WITH TWO SOURCES OF NITROGEN ON INTAKE, LIVE WEIGHT DAIN, FEED CONVERSION RATIO AND DIGESTION COEFFICIENTS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 45, Issue 6, September 2014, Pages 555-565 | ||
| Authors | ||
| Sh. A. Hassan; I. R. Abass | ||
| Abstract | ||
| Twenty four individual Awassi male lambs were used.They were weighing 23.5 + 0.50kg and 5-7 months of age. The lambs were divided into six equal groups and fed six experimental diets containing 0, 10 and 20% whole dates supplemented with either soybean meal or urea using 3x2 factorial experimental design on daily intake, live weight gain The diets were offered accoray to the body weight 2.7 % and maintained to 9 weeks. The results indicated that the total daily feed intake was highest in lambs fed 10% dates and lowest in lambs fed the 20% dates diet. Nitrogen sources had no effect on daily feed intake, while the interaction between the level of dates and nitrogen sources was significantly effected (P<0.05). The results showed that live weight gain and feed conversion ratio were not significantly affected by levels of date in the diets and source of nitrogen. The diet containing 10% dates had the highest (P<0.05) dry matter digestibility value, followed by the diet containing 20% and 0% dates. Lambs fed diet supplemented with urea had the highest (p < 0.05) digestibility as compared with those fed soybean meal. In Conclusion, substitution of 10 – 20% discarded date by barley grain in the fattening diets of Awassi lambs had no effect on live weight gain and feed conversion ratio | ||
| Keywords | ||
| lambs; daily intake; live weight gain; digestion coefficients; feed conversion ratio | ||
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