O. S. Sowande, S. O. Iposu, O. A. Sonibare, A. O. Oni, J. A.
Olanite and A. O. Yusuf Efficacy of Newbouldia laevis Extract and
Nutrient Density on Gastrointestinal Nematode In Sheep Managed
Semi- Intensively
Slide 2
Introduction Infection with gastro-intestinal nematodes is
major constraint to sheep production in Nigeria and elsewhere.
Increase resistance of gastrointestinal parasite to conventional
anthelmintics caused economic loses. Suggested alternatives are:
biological control, grazing management (Marley et al., 2006)
vaccination (Hein and Harrison, 2005) nutritional management (Hoste
et al., 2005; Iposu et al., 2008) genetic control (Grillo et al.,
2007) Plant extracts (Hounzangbe- Adote et al., 2005)
Slide 3
Objectives To determine: the effect of oral administration of
extracts from N. laevis on performance, faecal parasite egg counts
in semi-intensively managed sheep. the effect of nutrient density
on performance and faecal parasite egg counts in semi-intensively
managed sheep. the effect interaction of oral administration of
extracts from N. laevis and nutrient density on performance and
faecal parasite egg counts in semi-intensively managed sheep.
Slide 4
Materials and Methods Leaves of matured Newbouldia laevis
(Border tree) were collected, air dried, crushed and extracted with
70% ethanol. Newbouldia laevis extract was administered at 0, 30
and 60mg/BW. Concentrate supplement were Low Energy, Low
Protein(7.71 ME/KJ and 75.8g/kg CP) and High Energy, High Protein
(13.24 ME/KJ and 176.3g/kg CP). 24 WAD rams aged 12 - 15 months
were used. Grazing of Stylosanthes hamata, Pennisetum pedisellatum
and natural pasture was allowed 6hrs/day Data was collected on
concentrate DMI, weight changes, faecal egg count, PCV, WBC, RBC,
Hb, glucose, total protein, alanine transaminase (ALT) and
aspartate transaminase (AST). Data was arranged as a 2 x 3
factorial format in a completely randomized design.
Slide 5
Slide 6
Table 2: Effect of Nutrient densities and levels of Newbouldia.
laevis extract on faecal egg counts in WAD sheeep
Slide 7
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Slide 9
Conclusion Grazing sheep should be supplemented with high
energy- high protein concentrate diet and drenched with 60mg/BW
Newbouldia laevis extract monthly for improved performance and
reduction of worm burden.
