for the financial support for the work und their generous trust. Miss Buechl provided additional administrative support and moral support during the studies in Germany. Esta obra de esfuerzo y trabajo conjunto esta dedicada a mi querida familia. SUMMARY South Mexico belongs to the Mesoamerican tropical region. The typical production systems are characterized on the one side by high diversity ho...

The purpose of this study was to examine the effects fermentation parameters on addition clove oil oat straw, alfalfa hay, and maize silage at a 3% dry matter basis. In vitro gas production, methane production (CH4), metabolic energy (ME), net lactation (NEL), organic digestion (OMD) were all influenced by (P

A laboratory experiment was carried out on composting of three organic substrates viz; paddy straw, vegetable waste and maize stover by using isolated cellulose degrading bacteria CBG2, CBD4 CBC9. The physical properties after final products were examined. Irrespective the strains inoculation bulk density (BD) straw highest (0.82 Mg m-3) followed compost (0.74 (0.73 m-3). substrates, PD compost...

An in situ study was conducted on four rumen-cannulated wethers to determine (using (15)N infusion techniques) the microbial contamination (mg bacterial DM or crude protein (CP)/100 mg DM or CP) and the associated error on the effective degradability of fourteen feeds: barley and maize grains, soyabean and sunflower meals, full-fat soyabean, maize gluten feed, soyabean hulls, brewers dried grai...

The capability to utilize different forms of nitrogen (N) by sorghum (Sorghum bicolor), rice (Oryza sativa), maize (Zea mays), and pearl millet (Pennisetum glaucum) was determined in pot experiments. Seedlings were grown for 21 d without N, or with 500 mg N kg(-1) soil applied as ammonium nitrate, rice bran or a mixture of rice bran and straw. No treatment-dependent changes of root length, surf...

Lignin is a major cell wall component of vascular plants that provides mechanical strength and hydrophobicity to vascular vessels. However, the presence of lignin limits the effective use of crop straw in many agroindustrial processes. Here, we generated transgenic maize plants in which the expression of a lignin biosynthetic gene encoding CCoAOMT, a key enzyme involved in the lignin biosynthes...

Production of agriculture and timber commodities leads generation of enormous quantity of wastes. Improper disposal of these agroindustrial wastes pollutes the environment. This problem could be reduced by adding value to them. Therefore, a study was carried out to analyse and compare the nutrients content of RS, RH, SD, and EFB of composts and crude humic substances; furthermore, their effect ...