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Articles 1 - 29 of 29
Full-Text Articles in Genetics and Genomics
Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector
Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector
Dairy Science
No abstract provided.
Investigation Of Van Gogh-Like 2 Mrna Regulation And Localisation In Response To Nociception In The Brain Of Adult Common Carp (Cyprinus Carpio), Siobhan C. Reilly, Anja Kipar, David J. Hughes, John P. Quinn, Andrew R. Cossins, Lynne U. Sneddon
Investigation Of Van Gogh-Like 2 Mrna Regulation And Localisation In Response To Nociception In The Brain Of Adult Common Carp (Cyprinus Carpio), Siobhan C. Reilly, Anja Kipar, David J. Hughes, John P. Quinn, Andrew R. Cossins, Lynne U. Sneddon
Veterinary Science and Medicine Collection
The Van Gogh-like 2 (vangl2) gene is typically associated with planar cell polarity pathways, which is essential for correct orientation of epithelial cells during development. The encoded protein of this gene is a transmembrane protein and is highly conserved through evolution. Van Gogh-like 2 was selected for further study on the basis of consistent regulation after a nociceptive stimulus in adult common carp and rainbow trout in a microarray study. An in situ hybridisation was conducted in the brain of mature common carp (Cyprinus carpio), 1.5 and 3 h after a nociceptive stimulus comprising of an acetic acid injection to …
Genetic Relationship Between Longevity And Objectively Or Subjectively Assessed Performance Traits In Sheep Using Linear Censored Models, W. Mekkaway, Rainer Roehe, Ronald M. Lewis, M. H. Davies, L. Bünger, G. Simm, W. Haresign
Genetic Relationship Between Longevity And Objectively Or Subjectively Assessed Performance Traits In Sheep Using Linear Censored Models, W. Mekkaway, Rainer Roehe, Ronald M. Lewis, M. H. Davies, L. Bünger, G. Simm, W. Haresign
Department of Animal Science: Faculty Publications
Genetic parameters of longevity in crossbred mule ewes, and genetic relationships among longevity, growth, body composition, and subjectively assessed traits on mule lambs and ewes have been estimated using Bayesian linear censored models. Additionally, the genetic associations between longevity and culling reasons were examined. Data comprised 1,797 observations of mule ewes for longevity, culling reasons, growth, body composition, mouth scores, and type traits. Longevity was defined as the time (in years) from 2 yr of age (the age at first lambing of most ewes) to culling or death. Censored data (i.e., observations for which only the lower bound of the …
It's Not Too Late For The Harpy Eagle (Harpia Harpyja): High Levels Of Genetic Diversity And Differentiation Can Fuel Conservation Programs, Heather R. Lerner, Jeff A. Johnson, Alec R. Lindsay Ph. D., Lloyd F. Kiff, David P. Mindell
It's Not Too Late For The Harpy Eagle (Harpia Harpyja): High Levels Of Genetic Diversity And Differentiation Can Fuel Conservation Programs, Heather R. Lerner, Jeff A. Johnson, Alec R. Lindsay Ph. D., Lloyd F. Kiff, David P. Mindell
Faculty Works
Background: The harpy eagle (Harpia harpyja) is the largest Neotropical bird of prey and is threatened by human persecution and habitat loss and fragmentation. Current conservation strategies include local education, captive rearing and reintroduction, and protection or creation of trans-national habitat blocks and corridors. Baseline genetic data prior to reintroduction of captive-bred stock is essential for guiding such efforts but has not been gathered previously.
Methodology/Findings: We assessed levels of genetic diversity, population structure and demographic history for harpy eagles using samples collected throughout a large portion of their geographic distribution in Central America (n = 32) and South America …
Genetics And Pathogenesis Of Feline Infectious Peritonitis Virus, Meredith Brown, Jennifer L. Troyer, Jill Pecon-Slattery, M. Roelke-Parker, Stephen J. O'Brien
Genetics And Pathogenesis Of Feline Infectious Peritonitis Virus, Meredith Brown, Jennifer L. Troyer, Jill Pecon-Slattery, M. Roelke-Parker, Stephen J. O'Brien
Biology Faculty Articles
Feline coronavirus (FCoV) is endemic in feral cat populations and cat colonies, frequently preceding outbreaks of fatal feline infectious peritonitis (FIP). FCoV exhibits 2 biotypes: the pathogenic disease and a benign infection with feline enteric coronavirus (FECV). Uncertainty remains regarding whether genetically distinctive avirulent and virulent forms coexist or whether an avirulent form mutates in vivo, causing FIP. To resolve these alternative hypotheses, we isolated viral sequences from FCoV-infected clinically healthy and sick cats (8 FIP cases and 48 FECV-asymptomatic animals); 735 sequences from 4 gene segments were generated and subjected to phylogenetic analyses. Viral sequences from healthy cats were …
Sheep Updates 2009, Brown Besier, L. J. E. Karlsson, J. C. Greeff, A. C. Schlink, Mark Ferguson, Greg Lee, Sue Hatcher, Bruce Michael, Rob Woodgate, Darren Michael, Mandy Curnow, Julia Smith, John Young, Andrew Thompson, Chris Oldham
Sheep Updates 2009, Brown Besier, L. J. E. Karlsson, J. C. Greeff, A. C. Schlink, Mark Ferguson, Greg Lee, Sue Hatcher, Bruce Michael, Rob Woodgate, Darren Michael, Mandy Curnow, Julia Smith, John Young, Andrew Thompson, Chris Oldham
Sheep Updates
This session covers seven papers from different authors:
1. Scouring Management and Worm Control, Brown Besier, Department of Agriculture and Food, Western Australia
2.Breeding sheep for resistance to breech strike:- Selection results in WA, LJE Karlsson, JC Greeff & AC Schlink, Department of Agriculture and Food, Western Australia
3.Future Ewe - matching genetics to the production system, Mark Ferguson, Department of Agriculture and Food, Western Australia
4. Within-flock selection of ewes: opportunities for gains in reproduction, Greg Leeand Sue Hatcher, NSW Department of Primary Industries & Australian CRCforSheep Industry Innovation (Orange)
5. Managing Merinos …
Road-Killed Bats, Highway Design, And The Commuting Ecology Of Bats, Amy L. Russell, Calvin M. Butchkoski, Leslie Saidak, Gary F. Mccracken
Road-Killed Bats, Highway Design, And The Commuting Ecology Of Bats, Amy L. Russell, Calvin M. Butchkoski, Leslie Saidak, Gary F. Mccracken
Amy L. Russell
The Taming Of The Cat, Carlos A. Driscoll, Juliet Clutton-Brock, Andrew C. Kitchener, Stephen J. O'Brien
The Taming Of The Cat, Carlos A. Driscoll, Juliet Clutton-Brock, Andrew C. Kitchener, Stephen J. O'Brien
Biology Faculty Articles
This article discusses research into the evolution of domesticated cats, which is complicated by the fact that they do not appear to serve humans. Although several species are morphologically similar, genetic research focusing on mitochondrial DNA and genetic microsatellites found that domesticated cats descended from F. sylvestris lybica. Archaeological research indicating cats came to live with humans as the prevalence of house mice in agricultural settlements increased is noted. Insets: The House Cat's Ancestor; Early Domestication; From Wild to Mild; The Truth about Cats and Dogs
Predictors Of Response And Genetic Resistance/Susceptibility In Pigs To Infection With Porcine Reproductive And Respiratory Syndrome Virus, Donald G. Levis, Rodger K. Johnson,, Thomas A. Rathje, Fernando A. Osorio
Predictors Of Response And Genetic Resistance/Susceptibility In Pigs To Infection With Porcine Reproductive And Respiratory Syndrome Virus, Donald G. Levis, Rodger K. Johnson,, Thomas A. Rathje, Fernando A. Osorio
Department of Animal Science: Faculty Publications
The primary objective of this study was to determine differences in growth rate and expression of specific immune function genes and levels of cytokines between pigs that are more resistant and more susceptible to PRRSV infection. The data generated in this replication were combined with data from a previous replication. At 34 ± 5 days of age (8.2 ± 1.8 kg body weight), 220 weaned pigs free of PRRSV were transported from their farm of origin to the wean-to-finish barn at the Haskell Agricultural Laboratory. The pigs were randomly allotted to one of 16 pens (2.4 m x 4.3 m) …
Multiple Genes On Chromosome 7 Regulate Dopaminergic Amacrine Cell Number In The Mouse Retina, Irene E. Whitney, Mary A. Day, Daniel C. Ciobanu, Robert W. Williams, Benjamin E. Reese
Multiple Genes On Chromosome 7 Regulate Dopaminergic Amacrine Cell Number In The Mouse Retina, Irene E. Whitney, Mary A. Day, Daniel C. Ciobanu, Robert W. Williams, Benjamin E. Reese
Department of Animal Science: Faculty Publications
Purpose—The size of neuronal populations is modulated by gene variants that influence cell production and survival, in turn influencing neuronal connectivity, function, and disease risk. The size of the dopaminergic amacrine (DA) cell population is a highly heritable trait exhibiting six-fold variation among inbred strains of mice, and is used here to identify genes that modulate the number of DA cells.
Methods—The entire population was counted in retinal wholemounts from 37 genetically defined lines of mice, including six standard inbred strains, 25 recombinant inbred strains (AXB/BXA), reciprocal F1 hybrids, a chromosome (Chr) 7 consomic line, and three additional …
Comparison Of Feeding Wet Distillers Grains In A Bunk Or On The Ground To Cattle Grazing Native Sandhills Winter Range, Jacqueline Musgrave, Leslie Aaron Stalker, Matthew C. Stockton, T. J. Klopfenstein
Comparison Of Feeding Wet Distillers Grains In A Bunk Or On The Ground To Cattle Grazing Native Sandhills Winter Range, Jacqueline Musgrave, Leslie Aaron Stalker, Matthew C. Stockton, T. J. Klopfenstein
Department of Animal Science: Faculty Publications
Two-experiments determined the effects of feeding wet distillers grains with solubles (WDGS) either on the ground or in a bunk to cattle grazing native Sandhills winter range. In Experiment 1 (Exp. 1), 120 multiparous March-calving cows (536 ± 53.5 kg BW) were stratified by age and assigned to one of four treatments: WDGS fed on the ground, either three or six d/wk; or WDGS fed in a bunk either three or six d/wk. In Experiment 2 (Exp. 2), 63 March-born steer calves (201.2 ± 27.5 kg BW) were stratified by weight and assigned to one of two feeding treatments: WDGS …
Supplementing Wet Distillers Grains Mixed With Low Quality Forage To Grazing Cow Calf Pairs, Brandon L. Nuttelman, William Griffin, T. J. Klopfenstein, Walter H. Schacht, Leslie Aaron Stalker, Jacqueline Musgrave, Jerry D. Volesky
Supplementing Wet Distillers Grains Mixed With Low Quality Forage To Grazing Cow Calf Pairs, Brandon L. Nuttelman, William Griffin, T. J. Klopfenstein, Walter H. Schacht, Leslie Aaron Stalker, Jacqueline Musgrave, Jerry D. Volesky
Department of Animal Science: Faculty Publications
Two consecutive summer grazing studies were conducted to quantify the effect of supplementing cows with wet distillers grains (WDGS) mixed with low quality forage on 1) grazed forage intake and 2) cow and calf performance. During exp. 1, twenty-four three year old lactating cows rotationally grazed for 56 d and were assigned to one of three treatments: 1) the recommended stocking rate of 1.48 AUM/ha with no supplementation (CON1), 2) double the recommended stocking rate (2.96 AUM/ha) and supplemented 6.64 kg/hd daily of 45% grass hay and 55% WDGS (DM) to replace 50% of estimated total intake (SUP), and 3) …
Large-Scale Association Study For Structural Soundness And Leg Locomotion Traits In The Pig, Bin Fan, Suneel K. Onteru, Benny E. Mote, Timo Serenius, Kenneth J. Stalder, Max F. Rothschild
Large-Scale Association Study For Structural Soundness And Leg Locomotion Traits In The Pig, Bin Fan, Suneel K. Onteru, Benny E. Mote, Timo Serenius, Kenneth J. Stalder, Max F. Rothschild
Department of Animal Science: Faculty Publications
Background: Identification and culling of replacement gilts with poor skeletal conformation and feet and leg (FL) unsoundness is an approach used to reduce sow culling and mortality rates in breeding stock. Few candidate genes related to soundness traits have been identified in the pig.
Methods: In this study, 2066 commercial females were scored for 17 traits describing body conformation and FL structure, and were used for association analyses. Genotyping of 121 SNPs derived from 95 genes was implemented using Sequenom's MassARRAY system.
Results: Based on the association results from single trait and principal components using mixed linear …
Association And Haplotype Analyses Of Positional Candidate Genes In Five Genomic Regions Linked To Scrotal Hernia In Commercial Pig Lines, Zhi-Qiang Du, Xia Zhao, Natascha Vukasinovic, Fernanda Rodriguez, Archie C. Clutter, Max F. Rothschild
Association And Haplotype Analyses Of Positional Candidate Genes In Five Genomic Regions Linked To Scrotal Hernia In Commercial Pig Lines, Zhi-Qiang Du, Xia Zhao, Natascha Vukasinovic, Fernanda Rodriguez, Archie C. Clutter, Max F. Rothschild
Department of Animal Science: Faculty Publications
Scrotal hernia in pigs is a complex trait likely affected by genetic and environmental factors. A large-scale association analysis of positional and functional candidate genes was conducted in four previously identified genomic regions linked to hernia susceptibility on Sus scrofa chromosomes 2 and 12, as well as the fifth region around 67 cM on chromosome 2, respectively. In total, 151 out of 416 SNPs discovered were genotyped successfully. Using a family-based analysis we found that four regions surrounding ELF5, KIF18A, COL23A1 on chromosome 2, and NPTX1 on chromosome 12, respectively, may contain the genetic variants important for the …
Age And Diet Affect Gene Expression Profile In Canine Skeletal Muscle, Ingmar S. Middelbos, Brittany M. Vester, Lisa K. Karr-Lilienthal, Lawrence B. Schook, Kelly S. Swanson
Age And Diet Affect Gene Expression Profile In Canine Skeletal Muscle, Ingmar S. Middelbos, Brittany M. Vester, Lisa K. Karr-Lilienthal, Lawrence B. Schook, Kelly S. Swanson
Department of Animal Science: Faculty Publications
We evaluated gene transcription in canine skeletal muscle (biceps femoris) using microarray analysis to identify effects of age and diet on gene expression. Twelve female beagles were used (six 1-year olds and six 12-year olds) and they were fed one of two experimental diets for 12 months. One diet contained primarily plant-based protein sources (PPB), whereas the second diet contained primarily animal-based protein sources (APB). Affymetrix GeneChip Canine Genome Arrays were used to hybridize extracted RNA. Age had the greatest effect on gene transcription (262 differentially expressed genes), whereas the effect of diet was relatively small (22 differentially expressed genes). …
Characterization Of 24 Microsatellite Loci In Delta Smelt, Hypomesus Transpacificus, And Their Cross-Species Amplification In Two Other Smelt Species Of The Osmeridae Family, Kathleen M. Fisch, Jessica Lynn Petersen, Melinda R. Baerwald, John K. Pedroia, Bernie May
Characterization Of 24 Microsatellite Loci In Delta Smelt, Hypomesus Transpacificus, And Their Cross-Species Amplification In Two Other Smelt Species Of The Osmeridae Family, Kathleen M. Fisch, Jessica Lynn Petersen, Melinda R. Baerwald, John K. Pedroia, Bernie May
Department of Animal Science: Faculty Publications
We characterized 24 polymorphic tetranucleotide microsatellite loci for delta smelt (Hypomesus transpacificus) endemic to the San Francisco Bay Estuary, California, USA. Screening of samples (n = 30) yielded two to 26 alleles per locus with observed levels of heterozygosity ranging from 0.17 to 1.0. Only one locus deviated from Hardy–Weinberg equilibrium, suggesting these individuals originate from a single panmictic population. Linkage disequilibrium was found in two pairs of loci after excluding the locus out of Hardy–Weinberg equilibrium. Twenty-two primer pairs cross-amplified in wakasagi smelt (Hypomesus nipponensis), and 15 primer pairs cross-amplified in longfin smelt ( …
Mitochondrial Phylogeography Illuminates The Origin Of The Extinct Caspian Tiger And Its Relationship To The Amur Tiger, Carlos A. Driscoll, Nobuyuki Yamaguchi, Gila Kahila Bar-Gal, Alfred L. Roca, Shu-Jin Luo, David W. Macdonald, Stephen J. O'Brien
Mitochondrial Phylogeography Illuminates The Origin Of The Extinct Caspian Tiger And Its Relationship To The Amur Tiger, Carlos A. Driscoll, Nobuyuki Yamaguchi, Gila Kahila Bar-Gal, Alfred L. Roca, Shu-Jin Luo, David W. Macdonald, Stephen J. O'Brien
Biology Faculty Articles
The Caspian tiger (Panthera tigris virgata) flourished in Central Asian riverine forest systems in a range disjunct from that of other tigers, but was driven to extinction in 1970 prior to a modern molecular evaluation. For over a century naturalists puzzled over the taxonomic validity, placement, and biogeographic origin of this enigmatic animal. Using ancient-DNA (aDNA) methodology, we generated composite mtDNA haplotypes from twenty wild Caspian tigers from throughout their historic range sampled from museum collections. We found that Caspian tigers carry a major mtDNA haplotype differing by only a single nucleotide from the monomorphic haplotype found across …
Primate Phylogenomics: Developing Numerous Nuclear Non-Coding, Non-Repetitive Markers For Ecological And Phylogenetic Applications And Analysis Of Evolutionary Rate Variation, Zuogang Peng, Navin Elango, Derek E. Wildman, Soojin V. Yi
Primate Phylogenomics: Developing Numerous Nuclear Non-Coding, Non-Repetitive Markers For Ecological And Phylogenetic Applications And Analysis Of Evolutionary Rate Variation, Zuogang Peng, Navin Elango, Derek E. Wildman, Soojin V. Yi
Wayne State University Associated BioMed Central Scholarship
Abstract
Background
Genetic analyses are often limited by the availability of appropriate molecular markers. Markers from neutrally evolving genomic regions may be particularly useful for inferring evolutionary histories because they escape the constraints of natural selection. For the majority of taxa however, obtaining such markers is challenging. Advances in genomics have the potential to alleviate the shortage of neutral markers. Here we present a method to develop numerous markers from putatively neutral regions of primate genomes.
Results
We began with the available whole genome sequences of human, chimpanzee and macaque. Using computational methods, we identified a total of 280 potential …
Sexual Differentiation Of The Zebra Finch Song System: Potential Roles For Sex Chromosome Genes, Michelle L. Tomaszycki, Camilla Peabody, Kirstin Replogle, David F. Clayton, Robert J. Tempelman, Juli Wade
Sexual Differentiation Of The Zebra Finch Song System: Potential Roles For Sex Chromosome Genes, Michelle L. Tomaszycki, Camilla Peabody, Kirstin Replogle, David F. Clayton, Robert J. Tempelman, Juli Wade
Wayne State University Associated BioMed Central Scholarship
Abstract
Background
Recent evidence suggests that some sex differences in brain and behavior might result from direct genetic effects, and not solely the result of the organizational effects of steroid hormones. The present study examined the potential role for sex-biased gene expression during development of sexually dimorphic singing behavior and associated song nuclei in juvenile zebra finches.
Results
A microarray screen revealed more than 2400 putative genes (with a false discovery rate less than 0.05) exhibiting sex differences in the telencephalon of developing zebra finches. Increased expression in males was confirmed in 12 of 20 by qPCR using cDNA from …
Development And Evaluation Of New Mask Protocols For Gene Expression Profiling In Humans And Chimpanzees, Donna M. Toleno, Gabriel Renaud, Tyra G. Wolfsberg, Munirul Islam, Derek E. Wildman, Kimberly D. Siegmund, Joseph G. Hacia
Development And Evaluation Of New Mask Protocols For Gene Expression Profiling In Humans And Chimpanzees, Donna M. Toleno, Gabriel Renaud, Tyra G. Wolfsberg, Munirul Islam, Derek E. Wildman, Kimberly D. Siegmund, Joseph G. Hacia
Wayne State University Associated BioMed Central Scholarship
Abstract
Background
Cross-species gene expression analyses using oligonucleotide microarrays designed to evaluate a single species can provide spurious results due to mismatches between the interrogated transcriptome and arrayed probes. Based on the most recent human and chimpanzee genome assemblies, we developed updated and accessible probe masking methods that allow human Affymetrix oligonucleotide microarrays to be used for robust genome-wide expression analyses in both species. In this process, only data from oligonucleotide probes predicted to have robust hybridization sensitivity and specificity for both transcriptomes are retained for analysis.
Results
To characterize the utility of this resource, we applied our mask protocols …
Inheritance Of Shoulder Spotting In The Tetra, Hyphessobrycon Bentosi Characidae, Jack Frankel
Inheritance Of Shoulder Spotting In The Tetra, Hyphessobrycon Bentosi Characidae, Jack Frankel
Department of Biology Faculty Publications
The tetra (Hyphessobrycon bentosi) exhibits two phenotypes associated with shoulder spotting. Fish possess ei-ther a prominent black vertical spot located directly behind the operculum (H. b. bentosi, bentosi white tip tetra) or lack this spot (H. b. rosaceus, rosy tetra). Segregation patterns observed from the progenies of ten different crosses suggest that the inheritance of these phenotypes is controlled by two autosomal loci acting in a complementary fashion, with domi-nance at both loci required for the expression of the spotted phenotype.
Effects Of Time Of Transporting Prior To Sale Date On Selling Weight Of Weaned Steer Calves, L. M. Kovarik, Matt K. Luebbe, Joshua R. Benton, Galen E. Erickson, Richard J. Rasby
Effects Of Time Of Transporting Prior To Sale Date On Selling Weight Of Weaned Steer Calves, L. M. Kovarik, Matt K. Luebbe, Joshua R. Benton, Galen E. Erickson, Richard J. Rasby
Department of Animal Science: Faculty Publications
Eighty-eight crossbred weaned steer calves (250 + 26 kg) were used to evaluate weight loss (shrink) when transported to a mock sale barn on differing days prior to sale. The calves were weaned 14 days and fed free choice grass hay and 0.9 kg of DDGS at UNL’s Dalbey-Halleck Research Unit. Two days before initiation of treatments all calves were fed grass hay ad libitum and initial BW were recorded on two consecutive days. Calves were assigned randomly to treatment as a completely randomized design. On d 2, 1d restricted and 1d ad libitum treatments were transported 150 km to …
Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May
Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May
Department of Animal Science: Faculty Publications
We characterized 37 new microsatellite markers in the Pacific lion-paw scallop (Nodipecten subnodosus) and tested for cross-amplification in four other species. Genetic diversity was estimated using 24 individuals from the Lagoon Ojo de Liebre, B.C.S., Mexico. Allelic richness varied from 5 to 27 alleles per locus and the average expected heterozygosity was 0.76. Ten loci exhibited significant departure from Hardy–Weinberg equilibrium likely due to the presence of null alleles. Sixteen of these markers cross-amplified in closely related N. nodosus, while little or no amplification was observed in three Argopecten species.
Effect Of Hydrogen Peroxide In The Scald Tank On The Microbial Count Of Pork Skin, A. S. De Mello Jr., R. O. Roca
Effect Of Hydrogen Peroxide In The Scald Tank On The Microbial Count Of Pork Skin, A. S. De Mello Jr., R. O. Roca
Department of Animal Science: Faculty Publications
The objective of this study was to investigate the effect of hydrogen peroxide (H2O2) (50% v/v) on pork skin microbial populations. Forty-eight crossbred hogs were analyzed after dehairing and 30 during chilling. Three different concentrations of hydrogen peroxide were added to the scalding water (0.01, 0.05 and 0.1% of the total capacity of the scald tank). In treatment I no addition of H2O2 was applied while, in treatment II, H2O2 was added at 0 min and, in treatment III, it was added at 0, 30 and 60 min. Both treatments …
Estudio Del Impacto Económico De La Incorporación De Genética Rojo Y Blanco Sueco (Srb) Cuantificando Parámetros Reproductivos Y Productivos En Vacas Ayrshire Canadienses Y F1 (Ac X Srb) En La Finca El Trébol, Rafael Timoteo Otalora Muñoz, Luis Carlos Ramirez Piñeros
Estudio Del Impacto Económico De La Incorporación De Genética Rojo Y Blanco Sueco (Srb) Cuantificando Parámetros Reproductivos Y Productivos En Vacas Ayrshire Canadienses Y F1 (Ac X Srb) En La Finca El Trébol, Rafael Timoteo Otalora Muñoz, Luis Carlos Ramirez Piñeros
Zootecnia
El presente estudio se realizó en la Finca “El Trébol” (Facatativa-Colombia), el propósito fue comparar el impacto de la incorporación de genética Rojo y Blanco Sueco en animales Ayrshire Canadiense, cuantificando parámetros productivos, reproductivos y calidad composicional de la leche. Para esto, se utilizaron dos tratamientos:T1: Ayrshire Canadiense y T2: F1 (SRB x Ayrshire Canadiense). Con el fin de evaluar el comportamiento productivo y reproductivo, se realizaron análisis de varianza de una vía ANOVA GLM para comparar los tratamientos basados en los registros almacenados en el Software Alpro System de los animales en producción durante el periodo 2001 a 2007, …
Letter From The Dean, Lalit Verma
Letter From The Dean, Lalit Verma
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Female Plumage Coloration In Eastern Bluebirds, Sialia Sialis: Is It A Sexually Selected Trait?, Joanna Kay Hubbard
Female Plumage Coloration In Eastern Bluebirds, Sialia Sialis: Is It A Sexually Selected Trait?, Joanna Kay Hubbard
Dissertations, Theses, and Masters Projects
No abstract provided.
Inheritance Of Shoulder Spotting In The Tetra, Hyphessobrycon Bentosi Characidae, Jack Frankel
Inheritance Of Shoulder Spotting In The Tetra, Hyphessobrycon Bentosi Characidae, Jack Frankel
Jack Frankel
Multiple Colonisations Of The Western Indian Ocean By Pteropus Fruit Bats (Megachiroptera: Pteropodidae): The Furthest Islands Were Colonised First, John O'Brien, Carol Mariani, Link Olson, Amy L. Russell, Ludovic Say, Anne D. Yoder, Tom J. Hayden
Multiple Colonisations Of The Western Indian Ocean By Pteropus Fruit Bats (Megachiroptera: Pteropodidae): The Furthest Islands Were Colonised First, John O'Brien, Carol Mariani, Link Olson, Amy L. Russell, Ludovic Say, Anne D. Yoder, Tom J. Hayden
Amy L. Russell