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Articles by A.A. Njidda
Total Records ( 5 ) for A.A. Njidda
  A.A. Njidda and A. Nasiru
  A study was conducted to determine the chemical composition, in vitro dry matter digestibility and in vtro fermentation of four dorminant browse species in the region of experimentation (Leuceana lecocephala, Moringa Oleafera, Acacia tortilis and Ziziphus mucronata). Crude Protein (CP) (from 13.96% DM for A. tortilis to 19.42% DM for L. leucocephala) except M. oleifera which had the highest (21.42% DM). The range of lignocelluloses (acid detergent fibre, ADF) was from 21.16 g/100 g DM for A. tortilis to 31.39 g/100 g DM for M. oleifera. The netral detergent fibre ranged from 33.31 g/100 g DM for M. oleifera to 58.81 g/100 g DM. CF, EE and ash had a range of 20.00% DM for Z. mucronata to 32.53% DM for M. oleifera, 3.03% DM for A. tortilis to 5.33% DM for Z. mucronata and 10.76% DM for A. tortilis to 17.76% DM for L. leucocephala. The Total Condensed Tannin (TCT) for the browses ranged from 0.25 mg/g DM for M. oleifera to 2.96 mg/g DM for L. leucocephala. Z. mucronata had the highest value for Calcium (Ca), Magnesium (Mg), Sodium (Na) and Potassium (K) except for phosphorus. In vitro gas and methane production was highest in Z. mucronata. The IVDMD ranged from 70.66-72.00%. CP and TCT showed a positive relationship with IVDMD.
  A.A. Njidda
  The in vitro gas production of semi-arid browse species were evaluated. The relationship between in vitro gas measured on incubation of tannin-containing browses in buffered rumen fluid and calculated from Short Chain Fatty Acid (SCFA) production was investigated. Crude Protein (CP) content in the browses ranged from 13.96-21.421% Dry Matter (DM). The NDF and ADF were 33.31-58.81 and 21.16-31.39 g/100 g DM respectively. The ash content of the browses ranged from 10.76-17.76 (% DM). The content of phenolic and Saponin were 0.32-0.48 and 2.02-2.78 mg/g DM. Total Condensed Tannin (TCT) ranged from 0.32-2.96 mg/g DM. The TCT was significantly correlated (p<0.05) with gas production (r = 0.95; p<0.05). The Metabolizable Energy (ME) and Organic Matter Digestibility (OMD) were 3.31-6.23 (MJ/Kg DM) and 30.64-55.44 (% DM). A good relationship (R2 = 0.99; p<0.05) was observed between measured in vitro gas production and that calculated from SCFA. The relationship between in vitro gas measured on incubation of browse leaves and that calculated from SCFA allows prediction of SCFA from gas production. The study showed that the leaves of the browse forages had nutritive value and therefore, may serve as potential supplements for ruminants in Nigeria.
  H. Duwa , E.O. Oyawoye and A.A. Njidda
  An experiment was conducted to determine the productive parameters and carcass characteristics of broilers fed sorrel seed meal. A total of 160 Anak broiler chickens were used for the experiment. The birds were randomly allocated to four dietary treatments containing sorrel seed meal with different processing methods; Raw sorrel seed, roasted sorrel seed, boiled and dried sorrel seed and soaked and dried sorrel seed. The criteria for the assessment were growth performance, digestibility and carcass characteristics. Mean daily weight gain and daily feed intake of the birds at starter phase varied from 22.36-30.69 g/bird and 65.62-68.83 g/bird. The daily weight gain for the finisher phase range 47.66-53.57g/bird and 120.72-145.14 g/bird for daily feed intake at finisher phase. The result of daily weight gain and feed intake of combined phase show significant difference (p>0.05). Birds on boiled and dried sorrel seed meal had the highest daily weight gain (42.13 g/day) and daily feed intake (105.26 g/day). The nutrient digestibility were generally high for all nutrients (above 60%) except crude fibre which range between 47.89-51.95%. The results of the carcass show significant far all the body part except for some organs spleen, liver and intestine which showed no significant difference (p<0.05).
  H. Duwa , E.O. Oyawoye and A.A. Njidda
  The effects of replacing boiled sorrel seed meal for soyabean in broiler diet was investigated in an eight week feeding trial. Five diets were fed to 200 day-old Anak-2000 broilers chicks in groups of 40 chicks per diet with 3 replicates of 10 chicks each in a completely randomized design. The diets consisted of a control based on soyabean meal as major protein source and 4 other diets, in which sorrel seed meal was replaced at 0, 15, 30, 45 and 60% respectively. Data were collected on the growth performance, nutrient digestibility and carcass characteristics. There was no significant (p>0.05) dietary effects on final weight and daily weight gain. Feed intake was significantly (p<0.05) higher in treatments receiving sorrel seed meal except for finisher phase where the control diet tend to be higher than treatments 1 and 2. Feed Conversion Ratio (FCR) was better for treatment 4 (45%) compare to other treatments on the starter diet while treatment 2 (15%) had better FCR on the finisher phase. The overall nutrient digestibility was positive except for crude fibre digestibility where treatment 3 (30%) had 45.11%. The result of the carcass characteristics shows that there were significant differences (p<0.05) for all the cut-parts observed. Treatment 5 had higher weight than the other treatment groups except for drumstick, breast muscle, feather weight, head, gizzard and spleen where treatment 4 was higher.
  M.I. Okoruwa and A.A. Njidda
  The study was conducted to determine rumen characteristics and nitrogen utilization of West African Dwarf (WAD) Sheep. Fifteen (15) intact weaned ram lambs with an average weight of 12.25 kg and aged between 9 and 11 months old were randomly allotted to 3 dietary treatments (TA = Guinea grass, TB = equal ratio of Guinea grass and dried pineapple pulp and TC = dried pineapple pulp) with five (5) rams per treatment. Ammonia nitrogen (NH3-N) concentration (mg/liter) in rumen fluid was significantly (p<0.05) affected across treatments, with animals on TA recorded the highest value when compared to TB and TC. No significant difference (p>0.05) was observed in pH study in the rumen fluid across treatments. Nitrogen utilization parameters were significantly affected (p<0.05) across dietary treatments. Animals on TA were the highest in nitrogen intake, urinary nitrogen, total nitrogen excreted, nitrogen balance (g/day) and nitrogen retention (%), but feacal nitrogen (g/day) was the highest in animals on TB. The inclusion of Dried Pineapple Pulp (DPP) to Guinea grass in equal ratio (TB) improved rumen parameters and better nitrogen utilization of West African Dwarf Sheep.
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