Experiments were conducted to evaluate factors affecting persistence of the invasive, federal noxious weed Benghal dayflower in sustainable agronomic systems. Seeds were exposed to a range of temperatures simulating those found in hay bales in the field and periodically tested for viability over 21 ...

Reducing the number of viable weed seeds entering a field is critical to successful weed management. Viable seeds can result from weed survivors that reach maturity, or can be imported into the field via livestock, grain, fodder, or machinery. Few reports exist on the survival of seeds in silage,...

Three feeding experiments were conducted to determine the feed intake, apparent digestibility and nitrogen retention of growing goats fed with Tithonia diversifolia and supplemented with rumen fermentable protein (cassava root chips and mulberry leaves) and bypass proteins (banana leaves, jackfruit ...

Two experiments were conducted to (i) study whether sheep grazing pastures infested by a spurge (Euphorbia polygalifolia) consume this invasive weed and its consequences on animal performance, and (ii) detect differences between sheep and cattle in ruminal degradation of infested pastures. In the...

An experiment was conducted to evaluate the DM ruminal degradability parameters (a, b, a+b and c), 48 h degradation of DM, CP and NDF, and CP intestinal digestibility in mature sheep fed with Enterolobium contortisilicum, Lysiloma latisiliquum, Moringa oleifera, Morus alba, Schizolobium excelsum...

The water buffalo (Bubalus bubalis) is a species with great potential for work and for meat and milk production in Colombia. The performance of this species exceeds that of other bovine species in similar conditions of management, differences that have been attributed mainly to the capacity of the...

Acacia angustissima has been proposed as a protein supplement in countries where low quality forages predominate. A number of non-protein amino acids have been identified in the leaves of A. angustissima and these have been linked to toxicity in ruminants. The non-protein amino acid 4-...

By means of a special research project, the influence of the ruminal digestion on the germination of dock seeds has been studied, followed by a storage experiment with different kind of farmyard manure. The results generally showed a reduction of the germination capacity with increasing time of...

Nine Merino wethers were split into 2 groups and fed for 9 days on a diet of (1) 800 g lucerne chaff + 200 g barley or (2) 800 g oaten chaff + 400 g Barastock pellets, after which each sheep was fed 5 g N. trichotoma seeds. Faecal samples were taken daily for 21 days to analyse dry matter, faecal...

Two isonitrogenous diets (12.5% CP) containing 20 (20% NPN) or 40% (40% NPN) of the N as non-protein N were evaluated with 0 or 10 mg laidlomycin propionate (LP)/kg in a 2 × 2 factorial arrangement. Changes in dietary NPN:N ratio were developed by partial substitution of urea N for fish meal N. In...