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Articles 211 - 240 of 767

Full-Text Articles in Animal Sciences

Diluents For Cryopreservation Of Semen From Non-Woolly Llamas (Lama Glama), Franz Nicolas Bustos Fernández Jan 2007

Diluents For Cryopreservation Of Semen From Non-Woolly Llamas (Lama Glama), Franz Nicolas Bustos Fernández

Theses and Dissertations

The collection and preservation of llama semen is not a standardized procedure as it is in cattle. It has a number of complications that are mainly associated with the characteristics of the semen. In order to contribute to the knowledge of reproductive biology, we decided to evaluate the behavior of llama semen in relation to the different diluters in this study. This study was done at the National Germplasm Bank for Camelids which is part of the Ministry of Rural Development of Agriculture and Environment. The Ministry is located in the Agriculture Experiment Center of Condoriri which belongs to the …

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Evaluation Of Hair Production In Angora Rabbits (Oryctolagus Cuniculus), Fed With Three Different Rations Of Reed In The Desaguadero Municipality - Department Of La Paz, Angel Sullca Mamani Jan 2007

Evaluation Of Hair Production In Angora Rabbits (Oryctolagus Cuniculus), Fed With Three Different Rations Of Reed In The Desaguadero Municipality - Department Of La Paz, Angel Sullca Mamani

Theses and Dissertations

This study was carried out in the Azafranal community of the Desaguadero municipality, which is in the Ingavi Province of the Department of La Paz. It was conducted at an altitude of 3350 meters above sea level at 16°20’00” south latitude and 69°00’00” west longitude. The study went from December 20, 2003 to June 20, 2004. Our objective was to evaluate hair production in angora rabbits (Oryctolagus cuniculus) fed with three different rations of reed. The experimental trial was done at the Angorita farm over a 135 day period that was divided into three smaller periods of 45 days. The …

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Northern Goshawk Nest Activity As An Indicator Of Habitat Quality On Three National Forests In Southern Utah, K. S. Marvel, R. L. Rodriguez, Landon R. Jones Jan 2007

Northern Goshawk Nest Activity As An Indicator Of Habitat Quality On Three National Forests In Southern Utah, K. S. Marvel, R. L. Rodriguez, Landon R. Jones

Student Works

The Northern Goshawk (Accipiter gentilis) has been a species of concern in the western United States since it was thought to be in decline in the 1970s. Loss of critical breeding and wintering habitat has contributed, in part, to this decline. In the U.S., the goshawk was listed in 1991 as a sensitive species for the Intermountain Region of the Forest Service. This region includes all National Forests in Utah. The goshawk also holds the status of a Management Indicator Species (MIS) on all six National Forests in Utah (USDA Forest Service 1999). The aim of the Forest Service was …

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Evaluation Of Vicuñas (Vicugna Vicugna) Fed With Three Types Of Hay In Stables In The Municipality Of Tiahuanaco, Department Of La Paz, José Cartagena Catacora Jan 2007

Evaluation Of Vicuñas (Vicugna Vicugna) Fed With Three Types Of Hay In Stables In The Municipality Of Tiahuanaco, Department Of La Paz, José Cartagena Catacora

Theses and Dissertations

This study was conducted in the Rural Academic Unit of Tiahuanaco, in the Ingavi province, in the department of La Paz. Three juvenile vicunas and three adult vicunas were used. Our objective was to observe the development of vicunas (Vicugna vicugna) fed with three types of hay (Bromus catharicus Phalaris tuberoisum and Medicago sativa) in stables. We obtained the following results: rectal temperature of 38.2ºC in juveniles and 38.6ºC in adults; heart rate of 68 beats/min in juveniles and 67 beats/min in adults; respiratory rate of 18 breaths/min in juveniles and 17 breaths/min in adults; femoral vein pulse of 70 …

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Genetic Diversity And Low Reproductive Success In Isolated Populations Of Utah Juniper (Juniperus Osteosperma, Cupressaceae), Loreen Allphin, Val J. Anderson, Amy F. Hunt Jan 2007

Genetic Diversity And Low Reproductive Success In Isolated Populations Of Utah Juniper (Juniperus Osteosperma, Cupressaceae), Loreen Allphin, Val J. Anderson, Amy F. Hunt

Faculty Publications

Utah juniper (Juniperus osteosperma) has greatly expanded its historical range in the western United States. Management plans for the species have focused on curtailing its encroachment into sagebrush and grassland communities. These plans often include burning or other methods of elimination. These methods may result in subdivision or fragmentation of existing juniper stands. We initiated a study at Dugway Proving Ground, a U.S. Army facility, to examine the effects of fragmentation on the reproductive success of Utah juniper in isolated populations. We used enzyme electrophoresis to quantify genetic variability in isolated populations. We also determined population reproductive success by examining …

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Forage Adaptability Trials For Forage And Seed Production In Bolivia; Effect Of 5 Herbicides On 7 Native Utah Forbs, Joshua C. Voss Dec 2006

Forage Adaptability Trials For Forage And Seed Production In Bolivia; Effect Of 5 Herbicides On 7 Native Utah Forbs, Joshua C. Voss

Theses and Dissertations

The harsh environmental and poor economic conditions of the Bolivian Altiplano require intervention to assist many of those that live there to become economically self-sufficient. We attempted to find introduced dry season reserve forage grasses that could produce enough biomass to be useful as feed for livestock, and that could also produce enough seed to distribute to farmers. While some of the grasses produced reasonable amounts of biomass, none produced seed in quantities that would be even close to being economically viable. The most likely cause of this is that the timing of resources that the grasses need to flower …

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Effects Of Cheatgrass Control On Wyoming Big Sagebrush In Southeastern Utah, Daniel Blaine Eddington Nov 2006

Effects Of Cheatgrass Control On Wyoming Big Sagebrush In Southeastern Utah, Daniel Blaine Eddington

Theses and Dissertations

Critical mule deer (Odocoileus hemionus) winter ranges in southeastern Utah dominated by Wyoming big sagebrush (Artemisia tridentata var. wyomingensis [Beetle and A. Young] Welsh) have developed dense cheatgrass (Bromus tectorum L.) understories. These communities are currently characterized by predominately mature to decadent stands of sagebrush with few perennial grasses and forbs. Sagebrush seedlings and perennial grasses compete for limited resources with annual grasses and forbs. To determine the affects of cheatgrass control on sagebrush growth and reproductive characteristics, imazapic (PLATEAU®, AC 263,222) herbicide was sprayed at 438.5 ml/ha with water and methylated seed oil during active fall growth of cheatgrass …

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Predicting Maize Yield, Nutrient Concentration And Uptake In P And K Fertilized Soils: Pressurized Hot Water And Other Alternatives To Mehlich I Extraction In Guatemala Soils, Heather Mae Hunsaker Jul 2006

Predicting Maize Yield, Nutrient Concentration And Uptake In P And K Fertilized Soils: Pressurized Hot Water And Other Alternatives To Mehlich I Extraction In Guatemala Soils, Heather Mae Hunsaker

Theses and Dissertations

The inaccessibility and cost of soil testing reduce effectiveness of fertilizer use on small-scale subsistence farms, and inadequate funding promotes adoption of soil tests in developing countries with minimal validation. For example, Mehlich-I extraction of phosphorus (P) currently used extensively in Guatemala may not be suitable for its broad range of soils. At least four alternatives are available but are relatively untested [Bray 1, Mehlich III, Olsen and pressurized hot water (PHW)]. Pressurized hot water is relatively simple and inexpensive, but is not yet tested against other extraction methods under variable P or potassium (K) fertilization levels. To determine whether …

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Identification, Sequencing, Expression And Evolutionary Relationships Of The 11s Seed Storage Protein Gene In Chenopodium Quinoa Willd., Marie Renee Barrett Balzotti Jul 2006

Identification, Sequencing, Expression And Evolutionary Relationships Of The 11s Seed Storage Protein Gene In Chenopodium Quinoa Willd., Marie Renee Barrett Balzotti

Theses and Dissertations

Quinoa (Chenopodium quinoa) is an Andean crop adapted to harsh environmental conditions and containing a high and well-balanced protein composition. Two seed storage proteins, the 2S albumin and 11S globulin, are the major amino acid reservoirs for the developing seedling. An in-depth study of the genes encoding these proteins is necessary to understand the source of quinoa's protein quality. Our objectives include identification and sequencing of the 11S genomic and cDNA clones, analysis of 11S expression profiles in different quinoa accessions and evaluation of evolutionary relationships between the sequence of the 11S gene in quinoa and homologous genes in other …

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Simple Sequence Repeat Development, Polymorphism And Genetic Mapping In Quinoa (Chenopodium Quinoa Willd.), David Jarvis Jul 2006

Simple Sequence Repeat Development, Polymorphism And Genetic Mapping In Quinoa (Chenopodium Quinoa Willd.), David Jarvis

Theses and Dissertations

Quinoa is an important, highly nutritional grain crop in the Andean region of South America. DNA markers and linkage maps are important tools for the improvement of underdeveloped crops such as quinoa. The objectives of this study were to (i) develop a new set of SSR markers to augment the number of SSR markers available in quinoa, and (ii) construct a new genetic linkage map of quinoa based on SSRs using multiple recombinant-inbred line (RIL) populations. Here we report the development of 216 new polymorphic SSR markers from libraries enriched for GA, CAA, and AAT repeats, as well as 6 …

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Sequence Analysis Of Pmel17 As Candidate Gene For Causing Rat-Tail Syndrome In Cattle, Benjamin C. Hecht Jul 2006

Sequence Analysis Of Pmel17 As Candidate Gene For Causing Rat-Tail Syndrome In Cattle, Benjamin C. Hecht

Theses and Dissertations

Congenital hypotrichosis in cattle is commonly referred to as "rat-tail" syndrome and is characterized by a dilution of black coat color and morphological changes to the hair shaft and tail switch. Two loci are involved in the inheritance of the rat-tail phenotype, the "extension locus" (MC1R) and an unknown locus. In order to express the rat-tail phenotype the animal must inherit at least one black allele at MC1R and be heterozygous at the unknown locus. The rat-tail locus was previously mapped to an 8.7 cM region of Bos Taurus autosome (BTA) 5. Pmel17 is known to be involved in the …

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Ecological Investigations Of Chukars In Western Utah, Randy T. Larsen Jul 2006

Ecological Investigations Of Chukars In Western Utah, Randy T. Larsen

Theses and Dissertations

This thesis presents three separate manuscripts in chapter format dealing with the ecology of Chukars (Alectoris chukar) in western North America. All three manuscripts have been formatted for publication in professional journals. Chapter one confirms discovery of ingested lead pellets in Chukars across a broad region of western Utah including all four western counties sampled. Prevalence rates were 1.9% (n=105) for crops and 10.7% (n=75) of gizzards showing no evidence of penetration wounds. Ingestion is likely related to grit size preferences that are consistent with common shot sizes. The second chapter describes watering patterns and water-site selection of Chukars. Chukars …

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Soil Stable Carbon Isoptope Analysis Of Landscape Features At Aguateca, Guatemala, David R. Wright Mar 2006

Soil Stable Carbon Isoptope Analysis Of Landscape Features At Aguateca, Guatemala, David R. Wright

Theses and Dissertations

The ancient Maya of the Classic period (1700-1050 B.P.) relied on maize agriculture to support their populations. The agricultural systems they employed to produce that maize varied in form and degree of intensity, with more productive forms of agriculture needed in the Late Classic period (1350-1050 B.P.) to sustain the peaking population. It is likely that the ancient systems of production agriculture contributed to environmental degradation that in turn contributed to the pressures that culminated in the collapse of the civilization. In this study, stable carbon isotope ratios contained in the soil organic matter were used to further investigate ancient …

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Evolution Of The Nanog Pseudogene Family In The Human And Chimpanzee Genomes, Daniel J. Fairbanks, Peter J. Maughan Feb 2006

Evolution Of The Nanog Pseudogene Family In The Human And Chimpanzee Genomes, Daniel J. Fairbanks, Peter J. Maughan

Faculty Publications

The NANOG gene is expressed in mammalian embryonic stem cells where it maintains cellular pluripotency. An unusually large family of pseudogenes arose from it with one unprocessed and ten processed pseudogenes in the human genome. This article compares the NANOG gene and its pseudogenes in the human and chimpanzee genomes and derives an evolutionary history of this pseudogene family. Results: The NANOG gene and all pseudogenes except NANOGP8 are present at their expected orthologous chromosomal positions in the chimpanzee genome when compared to the human genome, indicating that their origins predate the human-chimpanzee divergence. Analysis of flanking DNA sequences demonstrates …

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Effect Of Early Weaning On Piglet Weight Gain And Fertility In Sows (Sus Scrofa) In Carmen Pampa Of Nor Yungas - La Paz, Darwin Juan Luna Isita Jan 2006

Effect Of Early Weaning On Piglet Weight Gain And Fertility In Sows (Sus Scrofa) In Carmen Pampa Of Nor Yungas - La Paz, Darwin Juan Luna Isita

Theses and Dissertations

This study was carried out in swine production facilities of the School of Veterinary Medicine and Zootechnic Studies at the Rural Academic Unit of Carmen Pampa. The objective of this study was to evaluate the effects of weaning male and female piglets at different times on their weight gain and the fertility of the sows. Four three year old sows that had a total of 40 piglets (25 males and 15 females) were used. The piglets were distributed across the following treatments: T1 - weaning 9 piglets (5 males and 4 females) at 56 days, T2 - weaning 13 piglets …

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Application Of Different Levels Of Byproducts From Quinua (Chenopodium Quinoa Willd.) In The Preparation Of Rations For Guinea Pigs (Cavia Porcellus L.) In The Growing And Fattening Stages, Grover Antonio Aduviri Paredes Jan 2006

Application Of Different Levels Of Byproducts From Quinua (Chenopodium Quinoa Willd.) In The Preparation Of Rations For Guinea Pigs (Cavia Porcellus L.) In The Growing And Fattening Stages, Grover Antonio Aduviri Paredes

Theses and Dissertations

From quinua crop residue it is possible to obtain byproducts that can be used to feed small animals, especially guinea pigs. These byproducts can become an alternative feed to ameliorate food deficiencies generally present in the Altiplano. This study compared the effect of consumed quinua meal rations on guinea pig body weight increase and food and economic conversion. This project was developed in two phases: pre-experimental and experimental. In the first phase, genetic material appropriate for the project and the initial rations for consumption was acquired. The second phase included the experimental design where the treatments were developed. The study …

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Apparent Digestibility In Vicunas Fed With Soft Straw And Alfalfa In The C.E.A.C., Felisa Capriles Apaza Jan 2006

Apparent Digestibility In Vicunas Fed With Soft Straw And Alfalfa In The C.E.A.C., Felisa Capriles Apaza

Theses and Dissertations

South American camelids are a source of fiber and meat for the inhabitants of the Andean region of Bolivia, Argentina, and Chile. When camelids are well fed they efficiently convert the Andean flora into meat with high protein content. Vicuñas have a great capacity to produce wool to be used as a high quality fiber. However, the yield of vicuña meat production is generally low. There have been several studies concerning nutritional forage sources for camelids, resulting in improved nutrition, decreased morbidity and mortality, and intensified production systems. Soft straw is a source of tough forage with low protein content. …

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Metabolic Profile And Nitrogen Balance In Llamas (Lama Glama) Fed With Jipi Quinua And Barley Hay, Viacha Municipality - Department Of La Paz, Meliton Ajata Avircata Jan 2006

Metabolic Profile And Nitrogen Balance In Llamas (Lama Glama) Fed With Jipi Quinua And Barley Hay, Viacha Municipality - Department Of La Paz, Meliton Ajata Avircata

Theses and Dissertations

This research was completed in Letanías, Viacha, La Paz, Bolivia, to determine the metabolic profile in blood plasma (total protein, glucose, urea, albumin, total lipids, creatinine, triglycerides, and cholesterol concentrations), live weight gain, and Nitrogen balance in adult llamas fed with 4 rations of barley and quinoa residue. Eight adult (4-5 year old) Q’ara type llamas were used in this study. Study llamas were trained to stay in metabolic cages with feces collection harnesses. Llamas were given one of the following feed rations: ration A (20% quinoa residue, 80% barley), ration B (40% quinoa residue, 60% barley), ration C (60% …

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Effect Of The Use Of Amaranth Leaf Flour In The Development Of A Diet For Guinea Pigs, Verónica Del Rocío Guerrero Carrera Jan 2006

Effect Of The Use Of Amaranth Leaf Flour In The Development Of A Diet For Guinea Pigs, Verónica Del Rocío Guerrero Carrera

Theses and Dissertations

This study was carried out in the San Clemente community. The objective was to analyze the effect of using amaranth leaf flour in the creation of a diet for guinea pigs. The field work was done over a period of 12 months and was done in two phases: Development of the diet: this was done by growing the amaranth, cutting it, and dehydrating it until flour was obtained. Then, it was mixed into the diet in accordance with the pre-determined formula along with the other respective materials. Handling of guinea pigs: This was done in the shed of the San …

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Determination Of The Primary Levels Of The Residues Of The Seeds Of Wheat, Maize, And Barley For The Elaboration Of The Food Mixture For Rabbits, Aida Esperanza Morejon Jacome Jan 2006

Determination Of The Primary Levels Of The Residues Of The Seeds Of Wheat, Maize, And Barley For The Elaboration Of The Food Mixture For Rabbits, Aida Esperanza Morejon Jacome

Theses and Dissertations

The present investigation was done in the parish of Chaltura, Granja "La Pradera" which belongs to the University Técnica del Norte. The main objective of this investigation was to determine the primary levels of the residues of the seeds of wheat, maize, barley for the elaboration of the food mixture for rabbits. The evaluated variables, food consumed, weight gain, food value, protein percentage, production cost per treatment. Previously to the initiation of the field phase bromatological analysis were done on the three food mixtures in the National Institute of Farming Investigation, Quality and Nutrition Area. The treatments were four: TI …

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Assessment Of Chenopodium Quinoa Willd. Genetic Diversity In The Usda And Cip-Fao Collections Using Ssr?S And Snp?S, Shawn A. Christensen Nov 2005

Assessment Of Chenopodium Quinoa Willd. Genetic Diversity In The Usda And Cip-Fao Collections Using Ssr?S And Snp?S, Shawn A. Christensen

Theses and Dissertations

Quinoa (Chenopodium quinoa Willd.) is a staple grain for the indigenous people of the Andean region of South America with excellent nutritional qualities, including protein content. The objective of this study is to report on the development of fluorescence-tagged simple sequence repeats (SSRs) and single nucleotide polymorphisms (SNPs) to (1) genetically characterize the inherent diversity of 152 accessions of C. quinoa; (2) determine to what degree the CIP-FAO collection represents the range of genetic diversity in quinoa; and (3) test four hypotheses regarding quinoa?s center of diversity, Highland and Lowland clustering patterns, origin of Lowland varieties, and the …

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Microbial And Chemical Affects On Leachate From Calcareous Soils Treated With Wastewater Effluent, Craig M. Paul Jul 2005

Microbial And Chemical Affects On Leachate From Calcareous Soils Treated With Wastewater Effluent, Craig M. Paul

Theses and Dissertations

Increasing human populations are placing greater strain on water resources, prompting the use of treated wastewater effluent for irrigation in some areas, including the desert regions of the Western United States. To determine the potential effects of using secondary effluent for irrigation, we applied wastewater effluent and irrigation waters to natural and artificially constructed calcareous soils in greenhouse and field lysimeters, and in soil columns. The leachate from one field lysimeter contained increased fecal coliform counts than the effluent. Leachate coliform counts were decreased or not significantly changed in two field lysimeters. Electrical conductivity (EC), sodium adsorption ratio (SAR), chloride …

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Calorespirometric Evidence For Adaptation Of Blackbrush And Shadscale To Growth Season Temperatures In Cold Deserts, Heidi A. Summers Feb 2005

Calorespirometric Evidence For Adaptation Of Blackbrush And Shadscale To Growth Season Temperatures In Cold Deserts, Heidi A. Summers

Theses and Dissertations

Coleogyne ramosissima Torr. (blackbrush) and Atriplex confertifolia [Torr. & Frem.] Wats. (shadscale) are cold desert shrubs from different families that often grow together in the Great Basin and the Colorado Plateau in the life zone between 800 and 2000 m elevation. Tissue and seeds from the two species were collected from several localities. Metabolic heat and carbon dioxide production rates were measured with calorespirometry on tissue from field-grown plants and on seedlings at temperatures from 5 to 35°C at 5°C intervals. Blackbrush adapts to higher temperatures earlier than does shadscale, and once it has adjusted to higher temperatures, anabolic rates …

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Metabolic Profile And Live Weight Of Male Llamas (Lama Glama) Fed With Barley Hay, Alfalfa, And Quinoa Scrub, Karla Coaquira Arratia Jan 2005

Metabolic Profile And Live Weight Of Male Llamas (Lama Glama) Fed With Barley Hay, Alfalfa, And Quinoa Scrub, Karla Coaquira Arratia

Theses and Dissertations

In recent years llamas have attracted great national and international interest for their qualities of human food production, fiber production for high-quality textiles, and for being an ecological animal. These qualities have allowed a resurgence of cultivating them for commercial ends. One of the principal limits is secure food for allowing a constant, sustainable growth. The objective of this study was to evaluate the metabolic profile and live weight of male llamas (Lama glama) fed with barley hay, alfalfa hay, and quinoa scrub. The fieldwork occurred in metabolic chambers in a closed environment at the demonstration farm of the Benson …

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Apparent Digestibility In Llamas (Lama Glama) Fed With (Stipa Ichu) Treated With Urea And Molasses At The C.E.A.C., Ninfa Jacqueline Magne Colque Jan 2005

Apparent Digestibility In Llamas (Lama Glama) Fed With (Stipa Ichu) Treated With Urea And Molasses At The C.E.A.C., Ninfa Jacqueline Magne Colque

Theses and Dissertations

The following work was conducted at the Agricultural Experimental Center under the title of : Apparent digestibility in llamas feed with stipa ichu (Peruvian feather grass) treated with urea and molasses, for which 3 assays were performed in reference to the study : 1) percentage of assimilation of the treated and non- treated grass, 2) apparent digestibility of fiber and protein after and before feeding, and 3) determine the adequate levels of urea and molasses for the chemical treatment of the grass (Stipa ichu). For the first assay, the greater consumption was obtained at the level of 3 (3% of …

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Living Digestibility Of Alfalfa And Barley In Llamas (Lama Glama) In The Agricultural Experimental Center Condoriri, Adelaida Alarcon Chuquichambi Jan 2005

Living Digestibility Of Alfalfa And Barley In Llamas (Lama Glama) In The Agricultural Experimental Center Condoriri, Adelaida Alarcon Chuquichambi

Theses and Dissertations

The following investigation was carried out in the Agricultural Experimental Center Condoriri (CEAC), dependent on the Faculty of Agricultural Livestock Sciences and Veterinary Medicine, located to the North of the Province border of the Department of Oruro, a distance of 12 km from the town of Caracollo and 49 km from the city of Oruro. The production of llamas and alpacas in our country is an activity of ecological, social, and especially ecological importance for Andean inhabitants. In nutrition, the fundamental factor is the power of absorption; this is because the yield of animal production depends on the quantity and …

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In Vivo Digestibility In Llamas (Lama Glama), Fed With Barley And Paja Brava At The C.E.A.C., Martha Jesusa Llanos Pérez Jan 2005

In Vivo Digestibility In Llamas (Lama Glama), Fed With Barley And Paja Brava At The C.E.A.C., Martha Jesusa Llanos Pérez

Theses and Dissertations

The Highlands of Bolivia present a great diversity of native botanical species with strong forage characteristics, providing them with a considerable potential for usage as a resource in the feeding of cattle. The following work was performed with the idea of taking advantage of the zone’s native species as a source for the feeding of llama cattle. In order to accomplish it, we took into consideration the following variables: food consumption, water consumption, amount of fecal excretions, urine volume, body weight, and the digestibility of the nutrients found in the food prepared with paja brava and barley (ash, protein, fiber, …

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Biochemical And Molecular Nutrition Blocks As Dietary Supplements In Llamas (Lama Glama) In The Last Third Of The Gestation Period Of The Ceac, Janette Illanes Callejas Jan 2005

Biochemical And Molecular Nutrition Blocks As Dietary Supplements In Llamas (Lama Glama) In The Last Third Of The Gestation Period Of The Ceac, Janette Illanes Callejas

Theses and Dissertations

The present work consisted in the use of biochemical and molecular nutrition blocks (BMN) in llamas during the last third of the gestation period, at the Agricultural Experiment Center of Condori (CEAC), located 49 km north of the city of Oruro, and 12 km north of the Caracollo population, in the province of Cercado. For this research work, we used 20 pregnant llamas in the last third of their gestation period, between the ages of 2 and 3 years old, 10 of which belonged to the Khara breed, and 10 to the Thampulli breed. Two corrals of 7 x 7 …

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Effect Of The Use Of Amaranth (Amaranthus Spp.) Leaf Flour In The Creation Of Feeds For The Production Of Broiler Chickens, Wendy Valeria Quel Ruíz Jan 2005

Effect Of The Use Of Amaranth (Amaranthus Spp.) Leaf Flour In The Creation Of Feeds For The Production Of Broiler Chickens, Wendy Valeria Quel Ruíz

Theses and Dissertations

This investigation was conducted in the rural community of Cuambo, located in the northeast of the province of Imbabura, in the Mira river basin of Salinas parish, at 1530 meters above sea level and with an average temperature of 19.5° C. The main objective of this investigation was to analyze the effect of using amaranth (Amaranthus) leaf flour in the creation of feeds for broiler chickens. The field work occurred during 12 months and consisted of two phases: A. Creation of the feed: This proceeded from the cultivation, cutting, and drying of amaranth until the obtaining of the flour and …

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Development Of A Process Of Addition Of Tricalcium Phosphate From Burnt Phosphate Rock In Feed For Animal Nutrition, Luis Fernando Nogales Grágeda Jan 2005

Development Of A Process Of Addition Of Tricalcium Phosphate From Burnt Phosphate Rock In Feed For Animal Nutrition, Luis Fernando Nogales Grágeda

Theses and Dissertations

This study took place in Bolivia with the purpose of using thermally treated Capinota phosphate rock as a phosphorous supplement in balanced feed diets. The objective was to produce a natural phosphate substance that would be more easily accessible to the local population than commercial feed supplements. An additional objective of this study was to increase the availability of the low-fluoride phosphorous. The biological assays indicated that the diet with the added burned phosphoric rock produced similar yields to those using a commercial feed supplement (dicalcium phosphate). This indicates that the locally manufactured product, by partial acidification, can compete with …

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