EFFECT OF NIGELLA SATIVA SUPPLEMENTATION ON LAMBS RESPONSES TO DIETARY SUPPLEMENT OF RUMEN DEGRADABLE NITROGEN

M . Hassan, K.; A. Hassan, S.

	EFFECT OF NIGELLA SATIVA SUPPLEMENTATION ON LAMBS RESPONSES TO DIETARY SUPPLEMENT OF RUMEN DEGRADABLE NITROGEN
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 14, Issue 5, 2009, Pages 0-0
Authors
K. M . Hassan; S. A. Hassan
Abstract
The effect of three levels of rumen degradable nitrogen (1.0 , 1.3 and 1.6 g RDN / MJ of ME) and two levels of Nigella Sativa (0 and 7.5 g NS / kg DM) upon live-weight gain ,feed conversion ratio and some blood parameters were investigated in a 2x3 factorial experiment. Twenty four individual Karadi male lambs were used. They were weighing approximately 30 kg live weight and 6-7 months old at the start of the experiment. Two lambs were randomly allocated from each diet in order to determine some blood parameters. The diets were formulated to be given a 40 parts NaoH-treated barley straw DM to 60 parts concentrate DM. There were no differences in daily feed Intake of DM, OM, ME and UDN across treatments. The live weight gain differences for overall period and feed conversion ratio were not significantly affected by increasing level of RDN, ; However, live weight gain and FCR were significantly (P<0.05) improved with those lambs fed diets supplemented with NS as compared with those fed diets with out NS. Interaction between level of RDN and NS was not statistically significant. There was no significant effect of RDN and NS additives on growth hormone (GH) and blood sugar (BS), However, GH and BS of lambs fed 1.3 g RDN/MJ of ME either with or with out NS was slightly higher (p>0.05) than those fed other treatments. Blood Urea Nitrogen (BUN) was significantly (p<0.01) affected by the levels of RDN and NS supplementation .Lamb fed increasing levels of RDN was significantly (p<0.01) increase BUN, while NS additives significantly (p<0.01) reduced BUN

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