Journal Of Tropical Biosciences
Volume No: 10|
Page No: 16
| FullText PDF
Title: EFFECT OF FEEDING REGIME OF FICUS SYCOMORUS SUPPLEMENTATION AND SAMPLING TIME ON RUMEN METABOLITES OF YANKASA RAMS FED A BASAL DIET OF DIGITARIA SMUTSII
1-YASHIM, S.M*., 2-JOKTHAN, G.E., 3-LAMIDI, O.S., AND 4-ABDU., S.B.
1DEPARTMENT OF ANIMAL SCIENCE,&NBSP;AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA.
2NATIONAL OPEN UNIVERSITY OF NIGERIA, KADUNA, NIGERIA
3NATIONAL ANIMAL PRODUCTION RESEARCH INSTITUTE,&NBSP;AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA.
A study was conducted to evaluate the effect of feeding regime of Ficus sycomorus leaf meal and sampling time on rumen metabolites profile. A total of 36 rams weighing on the average 15.39kg were randomly assigned to four diets, containing 0, 5, 10, and 15% inclusion level of F. sycomorus, respectively. The animals were fed 2% body weight of the experimental diet in three feeding regimes: daily, skip-a-day and skip-2-days in a 4x3 factorial arrangement in a completely randomized design. Rumen fluid pH, total volatile fatty acids (TVFA) and ammonia nitrogen (NH4-N) were recorded. The result showed a significant (P<0.05) difference in rumen fluid pH at 6, 12 and 24 hours post feeding across the different feeding regimes. Feeding regime/frequency had a significant (P<0.05) influence on the total volatile fatty acids concentration at 12 and 18 hours post feeding. Rams on skip-a-day feeding of the supplement had higher values of 13.80, 19.43, 18.36 and 12.90 mg/100ml at 6, 12, 18 and 24 hours post feeding respectively. Feeding regime did not influence the concentration of NH3-N at the various sampling time. The mean rumen fluid pH and NH4-N concentration was significantly (P<0.05) affected by sampling time. Feeding frequency influenced significantly (P<0.05) all the mean rumen variables studied. Mean total volatile fatty acids concentration was not affected (P>0.05) by the sampling time. It was concluded that feeding regime and sampling time had a positive influence on rumen metabolites profile with skip-a-day feeding maintaining a high concentration of total volatile fatty acids and NH4-N.
The result of the effect of sampling time on mean rumen fluid variables in Yankasa rams fed concentrate containing F. sycomorus is presented in Table 6. Sampling time significantly (P<0.05) influence rumen pH and NH3-N concentration, but not total volatile fatty acids. The rumen pH at 18 and 24 hours post feeding (6.92 and 6.93 respectively) were significantly (P<0.05) higher than the values obtained at 6 and 12 hours post feeding (6.54 and 6.64 respectively). Rumen NH3-N concentration at 6 and 24 hours (29.17 and 29.02 mg/l respectively) post feeding were significantly (P<0.05) lower compared to the result obtained at 12 and 18 hours (32.94 mg/l) post feeding.
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