Innovations in Dryland Agriculture

226

Live

weight kg

hd

-1

43

42

41

40

39

38

37

Fig. 4 Live weight change of sheep grazing two shrub-based forage systems during autumn in
Monarto, South Australia. There is often a distinct feed gap at this time of year if the pasture con-
sists of annual plant species but, with the inclusion of perennial shrubs, sheep gained weight for
about 6 weeks, until feed on offer limited performance. The dashed line represents the growth
curve for sheep grazing saltbush (Atriplex nummularia) in combination with senesced annual pas-
ture, whereas the solid line represents the growth curve of sheep grazing a mixture of 20 shrub
species along senesced annual pasture (Data from J. Emms, South Australia)

Table 2 Examples of shrub species with anthelmintic properties. Larval development score is an
in vitro method for screening inhibitory effects of compounds on worm parasites

Botanical name and taxa author Common name

Larval development

score (% of control)

Viminaria juncea (Schrad.) Hoffmanns. Swishbush, golden spray <1

Eremophila maculata ((Ker Gawel.)

F.Muell.

Native fuschia 2

Chenopodium nitrariaceum (F.Muell.)

Benth

Nitre goosefoot 3

Acacia pycnantha Benth. Golden wattle 6

Acacia loderi Maiden Broken Hill gidgee, nelia 9

Acacia saligna (Labill) H.L.Wendl. Golden wreath wattle 10

Eremophila longifolia (R. Br.) F.Muell. Emu bush, Berrigan 10

Medicago sativa L. Lucerne 10

Kennedia eximia Lindl. Red coral vine 12

Kennedia prorepens (F. Muell.) F. Muell Purple flowered pea vine 29

Rhagodia candolleana Moq. Sea berry saltbush 42

Enchylaena tomentosa R. Br. Barrier saltbush, ruby

saltbush

49

Kotze et al. ( 2009 )

D. Blache et al.