كليدواژه :
Acorn , Ram Iamb , Sheep , Diet , ميوه بلوط , گوسفند , بره هاي پرواري , جيره غذايي , Oak kernel , دامپروري , Tannin , تانن
چكيده لاتين :
In this trial the effects of four levels of oak kernel (0, 10, 20 and 30%) on growth performance, carcass characteristics and daily dry matter intake in 48 Kurdish male lambs with 180-210 days old and 23.236 ±1,311 kg initial weight was studied. A completely randomized design with 4 diets, 4 replications and 3 observation in each replication was used. The Iambs were fed for a period of 100 days and daily weight gain, dry matter intake and feed conversion ratio in 20 days intervals were calculated. At the end of this trial the lambs to determine carcass efficiency, carcass cuts and chemical composition of boneless meat of ribs (No: 1 0,11 and 12) were slaughtered. The results showed that average daily gain and daily dry matter intake of the lambs fed with diets containing 0,10,20 and 30% oak kernel were 235, 245.5, 262 and 272.75(gr/day) and 1.498, 1.520, 1.507 and 1.612(kg/day) respectively. There was no significant difference between treatments (p>0.05). The average feed conversion ratio of the lambs which were fed by different rations were 6.430, 6.220, 5.765 and 5.927, respectively. There were no significant differences between warm carcass weights 22.330, 22.813, 23.802 and 26.133 (Kg) and dressing percentage that were 47.770, 47.755, 47.677 and 52.162 on different diets, respectively(p>0.05).
