Effects of Essential Oils of Sagebrush on Deer Rumen Microbial Function

Ecological implications of traditional livestock husbandry and associated land use practices: A case study from the trans-Himalaya, India

“…A. salsoloides, an abundant species having high protein content (Casimir et al, 1980), was marginally grazed possibly because of its strong aroma due to essential oils. Livestock are expected to benefit from exclusion of such species from their diet, as essential oils can have a negative effect on the rumen microorganisms and hence can retard digestion of cellulose (Nagy et al, 1964). We did not observe any instance of sheep and goats succumbing to saline poisoning by excessive consumption of annual chenopods reported in the trans-Himalayan region of Afghanistan (Casimir et al, 1980).…”

Effect of pesticides applied in cowpea production on rumen microbial fermentation of cowpea haulms as reflected in <i>in vitro</i> gas production

“…This observation contrasts with the report by Schwartz et al (1973), who documented an increase in dry matter digestibility when levels of parathion and melathion were used up to 100 mg/kg, beyond which inhibition was recorded. The results obtained by our study may be explained by the nature of the compound (organochlorine) and the possible role of rumen microbes in its breakdown and metabolism to more toxic products that might have an influence on the growth of more sensitive microorganisms (Nagy et al, 1964) and hence a reduction in gas production. Means within column bearing different superscripts (a,b,c,d,e) differ at P <0.05 according to the Waller-Duncan k-ratio t-test with t = 100.…”

A Review of Browse in the Nutrition of Grazing Animals (Revision Bibliografica de los Arbustos en la Nutricion de los Animales en Pastoreo)

“…A more recent discovery has been that the essential oils contained in the leaves of some browse species inhibit digestion in the rumen (Nagy et al, 1964;Oh et al, 1967). Oh et al (1967) have isolated the various essential oils in Douglas fir needles and examined their effect on the rate of digestion in vitro.…”