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Theses/Dissertations

2007

Animal Sciences

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Calcium Dynamics Affecting Egg Production, Skeletal Integrity, And Egg Coloration In Ring-Necked Pheasants (Phasianus Colchicus), Landon R. Jones Dec 2007

Calcium Dynamics Affecting Egg Production, Skeletal Integrity, And Egg Coloration In Ring-Necked Pheasants (Phasianus Colchicus), Landon R. Jones

Theses and Dissertations

These 4 chapters represent manuscripts formatted for submission to journals based on an experiment conducted on Ring-necked Pheasants (Phasianus colchicus). Calcium limits the distribution of this species, which produces 7-15 eggs per clutch. They may renest up to 5 times per breeding season on a diet low in calcium. The first chapter examines egg production in laying hens on 7 different diets from 0.19-4.47% calcium in the absence of calcium loading. Calcium-loaded pheasants store calcium in medullary bone before an experiment and can draw on this surplus during egg production, possibly skewing experimental results. We measured egg production, egg characteristics, …

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Beneficial Fungal Interactions Resulting In Accelerated Germination Of Astragalus Utahensis, A Hard-Seeded Legume, Sean D. Eldredge Dec 2007

Beneficial Fungal Interactions Resulting In Accelerated Germination Of Astragalus Utahensis, A Hard-Seeded Legume, Sean D. Eldredge

Theses and Dissertations

Seed germination is pivotal in the life cycle of native plants in a restorative context because initiation of the metabolic processes critical to establishment is key to survival in such a competitive environment. Dormancy characteristics of some native plants including the subject species, Astragalus utahensis, have evolved mechanisms to control germination in order to maintain a seed bank and ensure germination at the right time under optimal conditions. In vitro germination studies confirm beneficial interactions between Alternaria and Aspergillus fungi and Astragalus utahensis seed. Inoculated seed trials (1.0 x 106 spores/mL) exhibited a highly significant difference in percent germination between …

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A Study Of Habitat Variables Associated With Northern Goshawk Nest Site Activity On The Three National Forests In Southern Utah, Keeli Shea Marvel Dec 2007

A Study Of Habitat Variables Associated With Northern Goshawk Nest Site Activity On The Three National Forests In Southern Utah, Keeli Shea Marvel

Theses and Dissertations

The Northern Goshawk has been a species of concern since its decline in the early 1990s, which has been attributed in part to loss of critical breeding and wintering habitat. Nest site selection of goshawks has been correlated with certain specific site characteristics including, but not limited to, forest species composition, forest stand size, diameter of nest tree, percent cover, tree height, site slope, and aspect. The goshawk holds the status of a Management Indicator Species (MIS) on all of the six national forests in Utah. This status requires annual monitoring to track goshawk numbers and to address any activities …

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Feline Lentivirus: Molecular Analysis And Epidemiology In Southern African Lions, Hayley Rebecca Adams Dec 2007

Feline Lentivirus: Molecular Analysis And Epidemiology In Southern African Lions, Hayley Rebecca Adams

Doctoral Dissertations

Feline immunodeficiency virus is a retrovirus of domestic cats causing significant lifelong infection. Infection has also been detected in nondomestic species, including African lions. It is endemic in certain populations in east and southern Africa. Infection leads to immunologic dysfunction and immunosuppressive disease in domestic cats; however, little research exists about the pathogenic effects of infection in lions and its epidemiological impact on free-ranging and captive populations. Little is known about the lentivirus in these populations at the molecular and host level. Analysis of the virus from these populations is necessary for development of detection assays that are both sensitive …

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Crop/Livestock Integration Effects On Soil Quality, Crop Production, And Soil Nitrogen Dynamics, Ellen B. Mallory Dec 2007

Crop/Livestock Integration Effects On Soil Quality, Crop Production, And Soil Nitrogen Dynamics, Ellen B. Mallory

Electronic Theses and Dissertations

Regional integration of potato and dairy farms has developed in Maine through arrangements where manure, feed, and sometimes land, are exchanged between neighboring farms. The effects of integration on soil quality, crop production, nitrogen (N) cycling, and N loss were investigated in field and laboratory studies of contrasting amended (manure, compost, green manure, and supplemental fertilizer) and nonamended (fertilizer only) soil management systems within 2-year potato (Solanum tuberosum L.) rotations in the Maine Potato Cropping Systems Project (MPEP). Additionally, soil quality of 48 integrated and nonintegrated Maine potato and dairy farm fields was assessed. The MPEP’s amended soil system enhanced …

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Mechanics Of Burrowing In Muddy Sediments, Kelly M. Dorgan Dec 2007

Mechanics Of Burrowing In Muddy Sediments, Kelly M. Dorgan

Electronic Theses and Dissertations

Marine muds are elastic solids through which animals move by propagating a crack-shaped burrow. Dilations previously considered anchors serve to exert dorsoventral compressive stresses on the burrow walls that, through elastic behavior of the medium, focus strongly at the tip of the burrow. This focused stress breaks adhesive or cohesive bonds, propagating a crack for the animal to follow. The force exerted by the polychaete, Nereis virens, to propagate a crack has been measured in gelatin, an analogue of muddy sediment, through photoelastic stress analysis. Finite element analysis was used to convert measured forces to those exerted in natural sediments …

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Possible Strategies To Increase Ovulatory Follicle Size And Reduce Time To Ovulation In Lactating Dairy Cows, Julio Omar Giordano Dec 2007

Possible Strategies To Increase Ovulatory Follicle Size And Reduce Time To Ovulation In Lactating Dairy Cows, Julio Omar Giordano

Masters Theses

Specific objectives of this study were to examine growth response of the dominant follicle (DF) after administration of Folltropin-V (FSH and LH) at onset of luteolysis and investigate use of human chorionic gonadotropin (hCG) for decreasing ovulation time in lactating Holstein cows. On day 8 or 9 of a synchronized cycle, cows (n = 35) received an EAZI-BREED CIDR plus 100 μg of GnRH. CIDRs were removed 7 days later and cows were administered 500 μg cloprostenol. Concurrently, cows were randomly allocated to receive either 80 mg Folltropin-V (FSH, n = 19) or 4 mL of sterile saline (SAL, …

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Heat-Induced Perturbations During Oocyte Maturation Carry Over To Increase Susceptibility Of Preattachment Embryos To Heat Stress, Amber Nicole Bogart Dec 2007

Heat-Induced Perturbations During Oocyte Maturation Carry Over To Increase Susceptibility Of Preattachment Embryos To Heat Stress, Amber Nicole Bogart

Masters Theses

Objectives were to 1) examine effects of heat stress on maturing oocytes to alter the ability of resulting embryos to develop after fertilization, 2) evaluate blastocyst development of compact morulae derived from control or heatstressed oocytes after culture at 38.5°C or 41.0°C, and 3) evaluate effects of heat stress on compact morulae to alter sex ratio. Culture of cumulus oocytes at 41.0°C did not alter ability of presumptive zygotes (PZ) to cleave; however, the proportion of embryos that cleaved to the 8- to 16-cell stage was lower (P = 0.01). Also, the proportion of 8- to 16-cell embryos derived from …

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Development, Stability, And Molecular Mechanisms Of Macrolide Resistance In Campylobacter Jejuni, Dave Bryson Caldwell Dec 2007

Development, Stability, And Molecular Mechanisms Of Macrolide Resistance In Campylobacter Jejuni, Dave Bryson Caldwell

Masters Theses

Previous studies on macrolide resistance in Campylobacter were primarily focused on the isolates from various origins using in vitro systems. In this study, both in vitro and in vivo experiments were conducted to examine the development, stability, and genetic basis of macrolide resistance in C. jejuni. All in vitro and in vivo selected EryR mutants were derived from the same parent strain C. jejuni NCTC 11168. To determine if long-term exposure of low-level EryR C. jejuni to low-dose tylosin selects for high-level EryR mutants (MIC > 512 μg/ml), two low-level EryR mutants (MIC = 32 or …

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Trapping, Survival, And Probable Causes Of Mortality Of Chukar Partridge, Aaron Clark Robinson Nov 2007

Trapping, Survival, And Probable Causes Of Mortality Of Chukar Partridge, Aaron Clark Robinson

Theses and Dissertations

We present an efficient and effective method for trapping chukars (Alectoris chukar) on artificial water sources. We compared a B-trap, a prairie chicken (Tympanuchus cupido) walk-in trap, a modified quail recall trap, and a newly designed Utah walk-in-funnel trap. Our Utah funnel trap outperformed standard techniques by more than 65%, and exceeded previous published results by 35%. Use of this method allows researchers and managers the ability to capture large numbers of Chukars relatively efficiently. With appropriate modifications this design is applicable for capturing a variety of bird species using small water developments. Chukars (Alectoris chukar) have been introduced throughout …

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The Ecology Of Translocated Greater Sage-Grouse In Strawberry Valley, Utah, Rick Joseph Baxter Nov 2007

The Ecology Of Translocated Greater Sage-Grouse In Strawberry Valley, Utah, Rick Joseph Baxter

Theses and Dissertations

Manuscript No. 1 Translocations of greater sage-grouse (Centrocercus urophasianus) have been attempted in 7 states and one Canadian province with very little success. To recover a small remnant population and test the efficacy of sage-grouse translocations, we captured and transported 137 adult female sage-grouse from 2 source populations to a release site in Strawberry Valley, Utah during March-April 2003-2005. The resident population of sage-grouse in Strawberry Valley was approximately 150 breeding birds prior to the release. We radiomarked each female and documented survival, movements, reproductive effort, flocking with resident grouse, and lek attendance. We used Program MARK to calculate annual …

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Seasonal Variation In Diet Of The Cotton Rat (Sigmodon Hispidus) Based On Fecal Analysis, Lynn A. Walker Oct 2007

Seasonal Variation In Diet Of The Cotton Rat (Sigmodon Hispidus) Based On Fecal Analysis, Lynn A. Walker

Biological Sciences Theses & Dissertations

Cotton rats, Sigmodon hispidus, live in oldfields, habitats with a variety of mostly herbaceous plants. Based on other studies, the hispid cotton rat eats predominantly grasses, but grasses rarely are the only food. Fecal samples were collected each month during an ongoing capture-mark-release demographic study of the rodent community at a location in southern Chesapeake, Virginia. In the lab, five fecal pellets per animal were stained, placed on a microscope slide, and covered with starch-gel medium and coverslip. Then a clear nail polish was applied to produce a semi-permanent slide. Using a microscope and a set of reference slides, plant …

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Limb Regeneration After Multiple Autotomy And Coxae Removal In The Blue Crab Callinectes Sapidus, Jennifer Ambler Oct 2007

Limb Regeneration After Multiple Autotomy And Coxae Removal In The Blue Crab Callinectes Sapidus, Jennifer Ambler

OES Theses and Dissertations

This study investigated limb regeneration in the juvenile blue crab, Callinectes sapidus, specifically the role of the coxa and pedal nerve innervation of the regenerative limb bud over time. The coxa is a leg segment that has been defined as the source of positional, cellular, and neuronal information needed for limb regeneration in brachyuran crabs. This study indicates that removal of coxae under regenerative and non-regenerative conditions did not deter limb regeneration. The coxa is not the exclusive location of limb regenerative information since limbs re-grew with normal positional and functional arrangement in 86% of crabs showing regeneration at removal …

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Antimicrobial Activity Screening Of Recombinant And Synthetic Varasin A Defensin From The Hard Tick Dermacentor Variabilis Against Various Bacteria, Julia A. Sharp Oct 2007

Antimicrobial Activity Screening Of Recombinant And Synthetic Varasin A Defensin From The Hard Tick Dermacentor Variabilis Against Various Bacteria, Julia A. Sharp

Biological Sciences Theses & Dissertations

Hematophagous arthropods, such as ticks and mosquitoes, rely on their innate immune system for defense against pathogens ingested in a blood meal as well as those acquired through injury. In response to pathogen recognition, the production of antimicrobial peptides, such as defensin, is typically upregulated. Varisin, a defensin, is thought to be a key component in the immunocompetence of the hard tick D. variabilis against Borrelia burgdorferi, the causative agent of Lyme disease. To study the antimicrobial effects of varisin, recombinant varisin was expressed by both insect cells and E coli. Purification of the protein followed by enterokinase treatment yielded …

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Evaluación De La Estabilidad Proteica En La Leche Y Su Relación Con La Calidad Microbiológica En Los Municipios De Tocancipá, Tabio Y Zipaquirá, Edgar Mauricio Ariza Aya Sep 2007

Evaluación De La Estabilidad Proteica En La Leche Y Su Relación Con La Calidad Microbiológica En Los Municipios De Tocancipá, Tabio Y Zipaquirá, Edgar Mauricio Ariza Aya

Zootecnia

Se realizó la evaluación de la estabilidad proteica por medio de la técnica de Ramsdell y la calidad higiénica de la leche a través de recuentos totales de mesofilos y coliformes, en 18 hatos de la sabana de Bogota, para establecer alguna relación entre estas dos variables evaluadas. El muestreo se organizó por rutas de recolección establecidas por la empresa Alquería S.A y se realizó durante los meses de noviembre de 2006 y enero del 2007, se empleó la técnica de recuento en placa para el recuento de Coliformes con el medio VRB y de Mesofilos con el medio Plate …

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Subcutaneous Fsh Implants, Colette Floyd Aug 2007

Subcutaneous Fsh Implants, Colette Floyd

All Theses

Superovulation is an assisted reproductive technique used to hyperstimulate the ovaries in an attempt to proliferate desirable genetics by increasing the number of dominant follicles and oocytes available per estrous cycle. Unfortunately, the process is inefficient and costly due to FSH injection protocols, labor requirements, and animal stress. A sustained release implant as a novel FSH delivery mechanism could increase the efficiency and utility while reducing cost and animal stress. The objectives of these experiments were: to design and fabricate a sustained FSH release implant and evaluate the amount of FSH released in-vitro and in-vivo.
Polyethylene glycol diacrylate (PEGDA) was …

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Examination Of The Allee Effect On Postlarval Recruitment And Post Settlement Survival In The Caribbean Spiny Lobster Panulirus Argus, Adrianna Zito Aug 2007

Examination Of The Allee Effect On Postlarval Recruitment And Post Settlement Survival In The Caribbean Spiny Lobster Panulirus Argus, Adrianna Zito

All Theses

Positive density dependence (the Allee effect) has been reported in a number of species that are attracted to conspecific cues. This effect has been shown to influence the settlement of many species of marine invertebrates. Caribbean spiny lobsters are gregarious den dwellers attracted to conspecific cues. Previous studies have suggested that the benefit of conspecific attraction is a reduced predation risk by decreasing the time to find crevice shelters (the guide effect) or by cooperative group defense once sharing shelters. I tested a third hypothesis that attraction to conspecific cues increases the settlement of lobster postlarvae into the highest quality …

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Thrombocyte Response To Lipopolysaccharide In Stress Induced Broiler Chicks, Farzana Ferdous Aug 2007

Thrombocyte Response To Lipopolysaccharide In Stress Induced Broiler Chicks, Farzana Ferdous

All Theses

The role of thrombocytes, nucleated blood leukocytes, on immune responses in chickens fed diets supplemented with vitamin C has not been studied in the past. This study investigates the effects of three types of diets(control, control with corticosterone, and control with corticosterone and vitamin C) in 14-day old broiler chicks on the expression of pro-inflammatory cytokines IL-1beta, IL-6, and IL-12 in thrombocytes. In addition, the effect of LPS, a microbial component to which broiler chicks can be exposed, on the expression of these pro-inflammatory cytokines was investigated. After two weeks of feeding, blood samples from the chicks were collected and …

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Feeding Performance In Hawaiian Stream Goby Fishes: Morphological And Functional Analysis, Takashi Maie Aug 2007

Feeding Performance In Hawaiian Stream Goby Fishes: Morphological And Functional Analysis, Takashi Maie

All Theses

Distributions of Hawaiian stream fishes are typically interrupted by waterfalls that divide streams into lower and upper segments. Larvae hatched upstream are flushed into the ocean, and must climb these waterfalls to reach adult habitats when returning back to freshwater as part of an amphidromous life cycle. Stream surveys and studies of climbing performance show that Lentipes concolor can reach fast-flowing upper stream segments, but that Awaous guamensis reaches only slower, lower stream segments. Gut content analyses for these two species indicate that diet differs between them only by 10% or less dry weight for most major components (mostly green …

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An Experimental Release Of Elk Into Great Smoky Mountains National Park, Jennifer Lynn Murrow Aug 2007

An Experimental Release Of Elk Into Great Smoky Mountains National Park, Jennifer Lynn Murrow

Doctoral Dissertations

I conducted 6 years of field work to evaluate the habitat use and population dynamics of an experimental release of elk (Cervus elaphus) into Great Smoky Mountains National Park (Park). Elk exhibited relatively small home ranges (female: 10.4 km2 and males: 22.4 km2) and movement distances decreased over time. I calculated survival rates (x = 0.73–0.93) and litter production rates (x = 0.73) for the population. To assess the potential for a long-term elk population, I incorporated those vital rates into the population modeling software Riskman and tested its sensitivity to any given …

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The Long-Term Effects Of A Group-Selection Timber Harvest On The Bird Community Of An Oak-Pine Forest In Maine, Stephen P. Campbell Aug 2007

The Long-Term Effects Of A Group-Selection Timber Harvest On The Bird Community Of An Oak-Pine Forest In Maine, Stephen P. Campbell

Electronic Theses and Dissertations

Bird populations have been monitored at the Holt Research Forest in Arrowsic, Maine since 1983 as part of a long-term forest ecosystem study. In the winter of 1987-1988, 10 ha of the 40-ha study area were subjected to a group-selection timber harvest (i.e., a harvest that creates canopy gaps by removing small groups of trees). I analyzed the first 20 years of these data (5 years of pre-harvest data and 15 years of post-harvest data) for changes in abundance and spatial distribution of birds in response to the harvest. Although species’ responses to the group-selection harvest were idiosyncratic, two general …

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Assessment Of The Flame Angelfish (Centropyge Loriculus) As A Model Species In Studies On Egg And Larval Quality In Marine Fishes, Chatham K. Callan Aug 2007

Assessment Of The Flame Angelfish (Centropyge Loriculus) As A Model Species In Studies On Egg And Larval Quality In Marine Fishes, Chatham K. Callan

Electronic Theses and Dissertations

This project sought to determine if flame angelfish (Centropyge loriculus) could serve as models in examination of environmental and dietary effects on egg quality in marine fishes. Evaluation of 21 marine ornamental species identified flame angelfish as being amenable to egg quality research, due to their rapid conditioning and frequency of spawning. At the onset of this project, accidental copper introduction to broodstock systems required assays to determine the effects of copper exposure on survival and reproduction. Flame angelfish exhibited accute sensitivity to copper, as 60% of fish exposed to 0.25mg/L died within 12 hours of exposure. Likewise, fish exposed …

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An Evaluation Of Field Management Practices To Improve Bobwhite Habitat, John P. Gruchy Aug 2007

An Evaluation Of Field Management Practices To Improve Bobwhite Habitat, John P. Gruchy

Masters Theses

Conversion of tall fescue (Festuca arundinacea) to managed native warm-season grasses (nwsg) and associated forbs benefits many wildlife species that depend on early successional habitat. Planting nwsg, however, may not be necessary depending on the composition of the seedbank. Treatments were implemented in a randomized complete block design with replication during 2003 and 2004 at three study sites across Tennessee to determine the effects of seasonal herbicide applications and disking on tall fescue eradication and resulting vegetation composition and structure. Treatments included: fall glyphosate (2.2 kg ai/ha; Gly-4 2qt/ac); fall glyphosate followed by winter disking; fall imazapic (0.2 …

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Influences Of Cattle On Community Structure And Pathogen Prevalence In Larval Amphibians On The Cumberland Plateau, Tennessee, Anne Chandler Schmutzer Aug 2007

Influences Of Cattle On Community Structure And Pathogen Prevalence In Larval Amphibians On The Cumberland Plateau, Tennessee, Anne Chandler Schmutzer

Masters Theses

There is considerable evidence that amphibians are declining globally due to various anthropogenic stressors. Cattle grazing in wetlands is a stressor that may have negative impacts on amphibians and has not been investigated intensively. Cattle could have a negative effect on larval amphibians by decreasing water quality through deposition of nitrogenous waste. Reduction in water quality also may compromise immune function by inducing stress thus making larvae more susceptible to pathogens. My objective was to quantify differences in amphibian larvae community metrics, water quality, and pathogen prevalence between cattle-access and non-access wetlands. I also measured fish abundance and biomass of …

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Influences Of Cattle On Postmetamorphic Amphibians On The Cumberland Plateau, Elizabeth Carrie Burton Aug 2007

Influences Of Cattle On Postmetamorphic Amphibians On The Cumberland Plateau, Elizabeth Carrie Burton

Masters Theses

Global decline of amphibian populations has been linked to various anthropogenic stressors. Recent studies have quantified the influences of cropland agriculture and deforestation; however, few have examined the impacts of allowing cattle access in wetlands on resident amphibians. I compared four wetlands exposed to cattle grazing for >10 years against four wetlands that had not been grazed for >10 years, at the University of Tennessee Plateau Research and Education Center. At each wetland I measured species richness, diversity, and species-specific relative abundance of postmetamorphic amphibians captured in pitfall traps and during breeding call surveys, amphibian egg mass abundance, shoreline vegetation …

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Cloning And Characterization Of The Salt Overly Sensitive 1 (Sos1) Gene In Chenopodium Quinoa Willd., Taylor Brian Turner Jul 2007

Cloning And Characterization Of The Salt Overly Sensitive 1 (Sos1) Gene In Chenopodium Quinoa Willd., Taylor Brian Turner

Theses and Dissertations

Salt tolerance is a commercially important trait that affects plant species around the globe. Cellular response to saline environments is a well studied but complex system that is far from being completely understood. The SALT OVERLY SENSITIVE 1 (SOS1) gene is a critical component of salt tolerance in many species, encoding a plasma membrane Na+/H+ antiporter that plays an important role in germination and growth in saline environments. Here we report a preliminary investigation of salt tolerance in quinoa (Chenopodium quinoa Willd.). Quinoa is a halophytic grain crop of the Chenopodiaceae family with impressive nutritional content and an increasing world-wide …

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Development And Characterization Of Microsatellite Markers For The Grain Amaranths (Amaranthus Spp. L.), Melanie Ann Mallory Jul 2007

Development And Characterization Of Microsatellite Markers For The Grain Amaranths (Amaranthus Spp. L.), Melanie Ann Mallory

Theses and Dissertations

The grain amaranths (Amaranthus hypochondriacus L., A. cruentus L., and A. caudatus L.) are important pseudocereals native to the Americas that have received increased attention for their nutritional content, specifically their balance of amino acids. The objective of this project was to produce and characterize a set of highly informative, reproducible microsatellite markers for the grain amaranths. A total of 1457 clones were sequenced from three genomic libraries enriched for the microsatellite motifs AAC, AAT and AC. Of these, 353 (24%) contained unique microsatellites. An additional 29 microsatellite loci were identified among 728 BAC-end sequences of a newly developed amaranth …

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The Prolamins Of Pearl Millet, Christian B. Ricks Jul 2007

The Prolamins Of Pearl Millet, Christian B. Ricks

Theses and Dissertations

Although work on the prolamins of pearl millet (Pennisetum glaucum) has revealed partial amino acid sequences for several alcohol-soluble storage proteins (Marcellino et al. 2002) the genes encoding them have not yet been isolated. We constructed a cDNA library from developing P. glaucum seed tissue and screened it using maize zein gene probes to isolate several α-prolamin-like gene sequences. The proteins encoded by these genes generally fall into two size classes: 20.6kD and 27.1kD, which we call the 21kD and 27kD pennisetins. Both proteins are similar in composition and sequence to α-prolamins from maize, sorghum and Coix. Protein bodies that …

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Evidence For Disease Mediated Extinction: Correlation Between An Introduced Pathogen And Extinction Of Rattus Macleari On Christmas Island, Kelly B. Wyatt Jul 2007

Evidence For Disease Mediated Extinction: Correlation Between An Introduced Pathogen And Extinction Of Rattus Macleari On Christmas Island, Kelly B. Wyatt

Biological Sciences Theses & Dissertations

The Durham Collection and the Cambridge and Oxford University Museums provided the materials to investigate the possibility that the extinction of indigenous rats of Christmas Island was a result of disease introduced by infected ship rats (R. rattus) in 1899. The collections of H.E. Durham in 1901-1902 reveal that R. macleari was present on Christmas Island up to then and includes specimens of R. rattus together with specimens that exhibit characteristics of both R. rattus and R. macleari. Durham's notes indicate both R. rattus and R. macleari specimens were heavily infected with trypanosomes at the time of collection. In …

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Inclusión De Lino Linum Usitatisium L. En La Dieta De Ponedoras Para La Producción De Huevos Enriquecidos Con Ácido Graso Α-Linolénico (Omega 3), Diana Carolina Tello Gracia, Diego Fernando Guerrero Villamil Jun 2007

Inclusión De Lino Linum Usitatisium L. En La Dieta De Ponedoras Para La Producción De Huevos Enriquecidos Con Ácido Graso Α-Linolénico (Omega 3), Diana Carolina Tello Gracia, Diego Fernando Guerrero Villamil

Zootecnia

El presente estudio se realizó con el fin de enriquecer los huevos de gallina con ácidos grasos omega 3 a partir de la inclusión de semilla de lino en la dieta. Se incluyeron niveles de 0 (T4), 10 (T1), 15 (T2) y 20 (T3) % de linaza, se determinó la composición de ácidos grasos por cromatografía de gases, se evaluó la producción y calidad del huevo. El porcentaje de producción de huevo fue superior en los grupos T4 y T2 (p>0.05) con 93,0 y 91,5 % de producción con respecto a 86,0% de los grupos T1 y T3. La …

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