Download or read book Digestion Kinetics and Vitreousness in Breeding Maize zea Mays L for Silage Yield and Nutritional Quality written by Benjamin A. L. Justen and published by . This book was released on 2004 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Breeding Maize for Enhanced Silage Quality written by Timothy John Gustafson and published by . This book was released on 2009 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Improvement of Bioenergy Crops written by Wilfred Vermerris and published by Springer Science & Business Media. This book was released on 2008-08-02 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethanol as an alternative fuel is receiving a lot of attention because it addresses concerns related to dwindling oil supplies, energy independence, and climate change. The majority of the ethanol in the US is produced from corn starch. With the US Department of Energy’s target that 30% of the fuel in the US is produced from renewable resources by 2030, the anticipated demand for corn starch will quickly exceed the current production of corn. This, plus the concern that less grain will become available for food and feed purposes, necessitates the use of other feedstocks for the production of ethanol. For the very same reasons, there is increasing research activity and growing interest in many other biomass crops. Genetic Improvement of Bio-Energy Crops focuses on the production of ethanol from lignocellulosic biomass, which includes corn stover, biomass from dedicated annual and perennial energy crops, and trees as well as a number of important biomass crops. The biomass is typically pretreated through thermochemical processing to make it more amenable to hydrolysis with cellulolytic enzymes. The enzymatic hydrolysis yields monomeric sugars that can be fermented to ethanol by micro-organisms. While much emphasis has been placed on the optimization of thermo-chemical pretreatment processes, production of more efficient hydrolytic enzymes, and the development of robust microbial strains, relatively little effort has been dedicated to the improvement of the biomass itself.

Download or read book Effects of Corn Kernel Endosperm Properties on Whole plant Yield and Quality Parameters and Dry Matter Intake Digestion and Lactation Performance in Dairy Cattle written by John Phillip Goeser and published by . This book was released on 2006 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improvement of Quality Traits of Maize for Grain and Silage Use written by W.G. Pollmer and published by Springer Science & Business Media. This book was released on 1980 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Seminar in the EEC Programme of Coordination of Research on Plant Protein Improvement

Download or read book Annual Report on the Inheritance and Improvement of Protein Quality and Content in Maize written by and published by . This book was released on 1970 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in the Study of Endosperm Vitreousness in Silage Maize and Identification of Quantitative Trait Loci Using Novel PhenotypingTechniques written by José Ignacio Varela (Ph.D.) and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize (Zea mays L.) is a crop of significant economic and agronomic importance that has many uses as food and livestock feed. These applications rely heavily on high levels of productivity and optimal quality of the mature kernel. Endosperm composition and texture dictates the quality grading of most maize varieties targeted to the food and feed markets. Endosperm vitreousness is particularly important in the production of maize silage as it influences starch degradability and therefore directly affects the nutritive value of the feed. Much of the knowledge of the genetics and biochemistry of endosperm vitreousness has resulted from research conducted on classic endosperm mutants. Significantly less emphasis has been placed on the characterization of natural variation available for this trait at a population level. One of the limitations has been the lack of reliable high throughput methods to measure this trait for large experiments. This dissertation contains a literature review and three research projects designed to advance the current knowledge of maize endosperm vitreousness and related traits focused in three areas: phenotyping, effects of ensiling, and genetic dissection. First, we present a novel, non-destructive high throughput method to estimate endosperm vitreousness using Near Infrared Spectroscopy in a hyperspectral flatbed scanner. Results show that applying hyperspectral imaging of intact kernels can predict endosperm vitreouesness, total kernel protein, total kernel density and mass in a high throughput manner without the need for sample destruction nor extensive sample preparation. The system allows also to apply computer vision algorithms to extract physical characteristics of samples such as kernel length and width. Second, we performed an evaluation of the influence of different levels of endosperm vitreousness and a-zeins in the nutritional value, fermentation profile and starch digestibility of whole plant maize silage during ensiling. We found that a-zeins degrades over time during ensiling and starch digestibility increases, probably due to the degradation of the a-zeins that are part of the starch-protein matrix. Third, we performed genetic mapping of endosperm vitreousness applying genome wide association studies to a diversity panel and also linkage mapping on a six parent multiparent population. We identified several genomic regions associated with endosperm vitreousness, protein, density and mass. Overall, results from these projects provide advances for important maize traits characterization and insights into the genetic control of key maize endosperm traits as well as practical considerations of the impact of endosperm vitreousness in maize silage.

Download or read book Physiology of Forage Maize Zea Mays L in Relation to Its Production and Quality written by Paul Christiaan Struik and published by . This book was released on 1983 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: cum laude graduation (with distinction)

Download or read book Variability Studies for Protein Content and Grain Yield in Maize Zea Mays L Genotypes written by K. Krishnam Raju and published by . This book was released on 2001 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maize Silage written by R. H. Phipps and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selection and Characterization of Maize Zea Mays L for Methionine and Tryptophan Content written by Audrey Darrigues and published by . This book was released on 2003 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because maize is a major feed crop in many parts of the world, it is important to optimize its nutritional value. However, maize protein is nutritionally limited by deficiencies in Lysine, Methionine, and Tryptophan. If the levels of the limiting amino acids could be improved through conventional breeding methods, it would reduce the cost of feed in meat production. The first part of this study consists of completing the first cycle of recurrent selection to test the potential of selection for Methionine and Tryptophan levels and to test the nutritional quality of the improved populations. After one cycle of recurrent selection, two maize populations, BS11 and BS31, were evaluated for their Methionine and Tryptophan levels. The progenies of the half-sib families categorized with high levels of Methionine in the starting populations had significantly higher Methionine levels than the progenies of those with low levels of Methionine. The response to selection for Tryptophan levels was negligible. The nutritional quality of the improved BS11 populations for Methionine was tested with a rat feeding trial. While the rats fed on the Low Methionine diet consumed significantly more feed than the rats fed on the High Methionine diet, there was no difference in either weight gain or feed efficiency. The second part of this study presents the variability for Methionine and Tryptophan levels in commercial maize germplasm and the genetic effects associated with those traits. Seventy-six inbred lines representing nine different genetic groups were evaluated. There was substantial variability within and among the genetic groups. Two diallel mating schemes were completed with parents selected for low or high Methionine or Tryptophan levels. The analysis of the diallel crosses revealed the following genetic effects: general combining ability, specific combining ability, and reciprocal effects. For the Methionine diallel, there were strong effects for general combining ability and specific combining ability. The reciprocal effects were expressed in the maternal direction. Given the success of recurrent selection, the variability for Methionine and Tryptophan levels, and the genetic effects associated with those traits, we conclude that the limiting amino acids of maize can be improved through conventional breeding methods.

Download or read book Silage Maize Variety and Heat Stress Effects on Nutritive Value of Maize Silage and on Digestion Events and Performance of Ruminants written by Tobias Gorniak and published by . This book was released on 2015 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microbial Fermentation of Maize Zea Mays L for Improved Nutritional Quality Beverage written by Adam Mogadam Laimir Nagla and published by . This book was released on 2012 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation and Characterization of Maize Zea Mays L Genotypes for Morphological Grain Yield and Quality Traits With CD Copy written by Vikash and published by . This book was released on 2018 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Zea Mays L written by Sarah Dunn and published by Nova Science Publishers. This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Zea mays L. is a potential producer of cereal crops and the dominant primary energy source of feed for monogastric animals, such as poultry. The first chapter in this book aims to determine the potential of phytase-producing endophytic bacteria, as an invisible avail for Zea mays L. High phytate levels in maize seeds is a problem encountered when used as raw material in poultry feed. The second chapter of this book focuses on the physical traits, chemical composition, and their relationship with wet-milling properties and nutritional quality parameters of maize hybrids of different maturity groups and various endosperm types (dent, semi-dent and flint). Finally, Mesoamerican cultures are generally regarded as advanced societies that, among other contributions to humanity, are known to have domesticated cultivated plants as Zea mays. Maize is one of the staple foods of the Mexican population and the practice of nixtamalization of maize seeds before Spanish conquest in 1521, is fundamental in the preparation of dough for tortillas. The last chapter examines the effect of salicyclic acid in maize bioproductivity"--

Download or read book Quality Protein Maize written by Edwin Theodore Mertz and published by . This book was released on 1992 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Study of Yield Traits in Normal and Quality Protein Maize Genotypes Zea Mays L Using Line X Tester Analysis written by Molla Assefa Mengistu and published by . This book was released on 2009 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: