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Articles 5641 - 5670 of 36419
Full-Text Articles in Entire DC Network
Perceptions Of Barriers And Benefits Of Manure Use In Cropping Systems, Richard Koelsch, Daniel Andersen, Erin Cortus, Leslie Johnson, Amy Schmidt, Siok A. Siek, Melissa Wilson
Perceptions Of Barriers And Benefits Of Manure Use In Cropping Systems, Richard Koelsch, Daniel Andersen, Erin Cortus, Leslie Johnson, Amy Schmidt, Siok A. Siek, Melissa Wilson
Nebraska Beef Cattle Reports
Animal agriculture is tasked with recycling the nitrogen and phosphorus in manures in an environmentally sound manner, typically as a soil fertility amendment, which often requires voluntary transfer of manures to crop farms on which there may be little or no history of manure use. # e ability of manure to compete with commercially available fertilizers is essential for this transfer. A survey was conducted of farmers’ and their advisors’ perceptions of the benefits and barriers to manure use in crops. There exists a strong recognition of manure’s agronomic, yield, and soil health benefits. However, many challenges associated with manure …
Predicting Nitrogen And Phosphorous Flows In Beef Open Lots, Megan N. Homolka, Galen E. Erickson, Richard K. Koelsch
Predicting Nitrogen And Phosphorous Flows In Beef Open Lots, Megan N. Homolka, Galen E. Erickson, Richard K. Koelsch
Nebraska Beef Cattle Reports
Manure collected from open lot animal housing systems experiences variability due to weather conditions, management of beef cattle and pens, and other factors resulting in substantial changes in manure characteristics. Data from 15 winter and summer periods at the beef feedlot at Eastern Nebraska Research and Extension Center including 416 independent pen measurements, were summarized for nutrient mass balance, and then used to determine sources of variability impacting nitrogen and phosphorous. Understanding variability is important to regulated manure nutrient planning processes. The results of this review suggest significant challenge associated with planning based upon standard values for estimating manure characteristics. …
Transforming Manure And Cedar Mulch From “Waste” To “Worth”, Karla Melgar, Agustin Olivo, Richard Koelsch, Larry Howard, Gary Lesoing, Aaron Nygren, Randy Saner, Amy D. Timmerman, Troy Walz, Todd Whitney, Amy Schmidt
Transforming Manure And Cedar Mulch From “Waste” To “Worth”, Karla Melgar, Agustin Olivo, Richard Koelsch, Larry Howard, Gary Lesoing, Aaron Nygren, Randy Saner, Amy D. Timmerman, Troy Walz, Todd Whitney, Amy Schmidt
Nebraska Beef Cattle Reports
In nearly every production environment, there are opportunities to capture profits if waste streams can be further processed or enhanced to create “value added” products. Animal feeding operations in Nebraska generate significant amounts of manure that are considered as a “waste” product. Additionally, Eastern red cedar (Juniperus virginiana) encroachment into grazing land has become an economic and ecological threat, reducing forage production, fragmenting wildlife habitats, and increasing the risk and severity of wild fires. Value- added uses for cedar woodchips are being sought by the Nebraska Forest Service and other agencies to promote tree management by landowners. Using manure and …
Using Coal Char From Sugar Production In Cattle Manure Management, Bijesh Maharjan, K. H. Jenkins Pas
Using Coal Char From Sugar Production In Cattle Manure Management, Bijesh Maharjan, K. H. Jenkins Pas
Nebraska Beef Cattle Reports
Application of coal char, a coal combustion residue from the sugar factory in Scottsbluff, NE (containing up to 30 % C by weight), was evaluated as a nitrogen (N) loss mitigation tool for feedlot manure in three experiments. In experiment 1, when char was added to piled manure previously removed from feedlot pens, N loss potential was reduced (44% vs. 68% in the control). In experiment 2, manure was collected fresh from the animal, from the pen surface with cattle still in the pen, and from a pile removed from the pen. Char was mixed with these samples in replicated …
The Impact Of Oxidative Stress On Postmortem Meat Quality, Nicolas J. Herrera, Felipe A. Ribeiro, Nicolas A. Bland, Morgan L. Henriott, Kellen B. Hart, Jessica Lynn Petersen, Chris Calkins
The Impact Of Oxidative Stress On Postmortem Meat Quality, Nicolas J. Herrera, Felipe A. Ribeiro, Nicolas A. Bland, Morgan L. Henriott, Kellen B. Hart, Jessica Lynn Petersen, Chris Calkins
Nebraska Beef Cattle Reports
This study was conducted to evaluate the relationship between animal oxidative status, using lipopolysaccharide (LPS) as a promoter for oxidation. This was used as a model to evaluate tenderization and meat quality factors early postmortem. Lambs were administered an intravenous injection of either saline, 50 ng/kg bodyweight (LPS50), or 100 ng/kg bodyweight (LPS100) every 72 hours for a 9- day period to stimulate physiological oxidative stress. After a day of rest, lambs were harvested, and pre- rigor Longissimus dorsi-muscles were obtained for transcriptomic analysis. Loins, aged for 1 and 14 days, were analyzed for attributes relating to oxidative potential, meat …
The Relationship Of Liver Abscess Scores And Early Postmortem Meat Tenderness, Nicolas J. Herrera, Felipe A. Ribeiro, Nicolas A. Bland, Morgan L. Henriott, Kellen B. Hart, Chris Calkins
The Relationship Of Liver Abscess Scores And Early Postmortem Meat Tenderness, Nicolas J. Herrera, Felipe A. Ribeiro, Nicolas A. Bland, Morgan L. Henriott, Kellen B. Hart, Chris Calkins
Nebraska Beef Cattle Reports
Acidosis is one of the most common nutritional disorders found in commercial feedlots. Cattle diets with high concentrations of starch can cause rapid production of acids in the rumen, disrupting microbial fermentation, causing liver abscess formation, and lowering livestock performance. This study was conducted to evaluate the relationship between the occurrence of liver abscesses and beef tenderness early postmortem. Results showed numerically lesser shear force values (greater tenderness) in loins from animals without liver abscesses, however, this was not statistically significant for slice shear force or Warner- Bratzler shear force. Although the effects of liver abscess occurrence in relation to …
Proteomic Analysis Of Oxidized Proteins In Beef, Nicolas A. Bland, Nicolas J. Herrera, Felipe A. Ribeiro, Morgan L. Henriott, Kellen B. Hart, Chris Calkins
Proteomic Analysis Of Oxidized Proteins In Beef, Nicolas A. Bland, Nicolas J. Herrera, Felipe A. Ribeiro, Morgan L. Henriott, Kellen B. Hart, Chris Calkins
Nebraska Beef Cattle Reports
To evaluate the effects of diet and quality grade on tenderness and oxidative damage to proteins, strip loins from USDA Upper 2/3rd Choice and Select- grade carcasses were obtained. Steers were fed either a diet containing dry rolled corn, steam flaked corn, dry rolled corn with 30% dried distillers grains with solubles, or steam flaked corn with 30% dried distillers grain with solubles. Results suggest that steaks from steers fed dry rolled corn are more objectively tender than steam flaked corn; in addition, steaks grading USDA Upper 2/3rd Choice steaks were more tender when compared to USDA Select quality grade. …
Fate Of Generic Escherichia Coli In Beef Steaks During Sous Vide Cooking At Different Holding Time And Temperature Combinations, Heather B. Hunt, Samuel C. Watson, Byron D. Chaves, Gary Sullivan
Fate Of Generic Escherichia Coli In Beef Steaks During Sous Vide Cooking At Different Holding Time And Temperature Combinations, Heather B. Hunt, Samuel C. Watson, Byron D. Chaves, Gary Sullivan
Nebraska Beef Cattle Reports
Sous vide cookery utilizes water baths held at precise temperatures to cook food and has increased in popularity in domestic and food service settings due to ease of use and consistent final cooking temperature of food. Some sous vide manufacturers’ cooking websites suggest cooking intact and nonintact beef products to internal temperatures as low as 115º F. To address the safety concerns of cooking non- intact beef products to temperatures below USDA- FSIS guidance temperatures, steaks were internally inoculated with a strain of generic E. coli and sous vide cooked to internal temperatures of 115, 125, 130, and 145º F …
Effect Of Increasing Corn Silage Inclusion In Finishing Diets With Or Without Tylosin On Performance And Liver Abscesses, Hannah C. Wilson, Levi Mcphillips, Bradely M. Boyd, Andrea K. Watson, J. C. Macdonald, Galen E. Erickson
Effect Of Increasing Corn Silage Inclusion In Finishing Diets With Or Without Tylosin On Performance And Liver Abscesses, Hannah C. Wilson, Levi Mcphillips, Bradely M. Boyd, Andrea K. Watson, J. C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
A finishing study was conducted to assess the impact of increasing silage inclusion in finishing diets to reduce the prevalence of liver abscesses in beef cattle. Cattle were fed two inclusions of corn silage (15 or 45% of diet dry matter), with or without tylosin for control of liver abscesses. Cattle fed 15% corn silage had a 2% improvement in feed efficiency when tylosin was added to the diet. However, in cattle fed 45% corn silage, no improvements in feed efficiency were observed when tylosin was added to the diet. Cattle fed 15% corn silage without tylosin, had the greatest …
Evaluation Of Condensed Algal Residue Solubles As An Ingredient In Cattle Finishing Diets, John C. Gibbons, Bradley M. Boyd, Levi Mcphillips, Andrea K. Watson, Galen E. Erickson
Evaluation Of Condensed Algal Residue Solubles As An Ingredient In Cattle Finishing Diets, John C. Gibbons, Bradley M. Boyd, Levi Mcphillips, Andrea K. Watson, Galen E. Erickson
Nebraska Beef Cattle Reports
A study was conducted to evaluate feeding 0, 2.5, or 5.0% of a novel liquid feed, Condensed Algal Residue Solubles (CARS), in one of two base diets with CARS replacing corn. ! e two base diets were fed to mimic Northern Great Plains (high moisture and dry rolled corn blend fed with wet distillers grains plus solubles) and Southern Great Plains (steam- flaked corn and dry distillers grains plus solubles) feedlot diets. ! ere were no interactions between base diet and CARS inclusion. Feed intake and longissimus muscle area decreased as CARS inclusion increased in the diet. A quadratic effect …
Evaluation Of Wheat Blended With Corn In Finishing Diets Containing Wet Distillers Grains, C A. Coulson, B M. Boyd, B B. Conroy, Galen E. Erickson
Evaluation Of Wheat Blended With Corn In Finishing Diets Containing Wet Distillers Grains, C A. Coulson, B M. Boyd, B B. Conroy, Galen E. Erickson
Nebraska Beef Cattle Reports
An experiment was conducted to evaluate the effect of grain type and wet distillers grains inclusion on finishing cattle performance and carcass characteristics. It was hypothesized that a greater inclusion of wet distillers grains would help mitigate acidosis previously observed with feeding wheat. Treatments were designed as a 2 × 2 factorial arrangement, with the first factor as grain type at either 100% dry rolled corn or a 50:50 blend of dry- rolled wheat and dry rolled corn, and the second factor as wet distillers grains plus solubles (WDGS) inclusion at either 12 or 30% of diet dry matter. There …
Impact Of Feeding Aspergillus Subspecies Blend And Di! Erent Corn Processing Methods On Finishing Beef Cattle Performance And Carcass Characteristics, Stacia M. Hopfauf, Bradley M. Boyd, Levi Mcphillips, J. C. Macdonald, Galen E. Erickson
Impact Of Feeding Aspergillus Subspecies Blend And Di! Erent Corn Processing Methods On Finishing Beef Cattle Performance And Carcass Characteristics, Stacia M. Hopfauf, Bradley M. Boyd, Levi Mcphillips, J. C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
A feedlot study utilizing 320 crossbred calf- fed steers (initial body weight 588 lb) compared the effect of feeding an Aspergillus additive in either dry- rolled corn or high- moisture corn finishing diets on cattle performance and carcass characteristics. Steers were fed 0 g/steer daily or 10 g/steer daily Aspergillus for both corn processing methods. # ere were no significant interactions between corn processing method and Aspergillus. Feeding finishing cattle Aspergillus did not impact performance compared to feeding none. Cattle fed dry- rolled corn had greater final body weight, dry matter intake, and gain compared to high- moisture corn diets. …
Evaluation Of Processing Technique For High- Moisture And Dry Corn Fed To Finishing Cattle, C A. Coulson, B M. Boyd, Braden C. Troyer, Levi Mcphillips, Mitch M. Norman, Galen E. Erickson
Evaluation Of Processing Technique For High- Moisture And Dry Corn Fed To Finishing Cattle, C A. Coulson, B M. Boyd, Braden C. Troyer, Levi Mcphillips, Mitch M. Norman, Galen E. Erickson
Nebraska Beef Cattle Reports
A 134- day finishing trial was conducted to evaluate the effect of milling method and corn type on finishing cattle performance and carcass characteristics. Treatments were applied in a 2 × 3 factorial arrangement, with the first factor as milling method (Automatic Ag roller mill or hammer mill) and the second factor as corn type, either 100% dry corn, 50:50 blend of dry and high moisture corn, or 100% high moisture corn. $ ere was no interaction between milling method and corn type for carcass- adjusted final body weight, average daily gain, or dry matter intake but there was an …
Evaluating Finishing Performance Of Cattle Fed High- Moisture Corn And Steam- Flaked Corn Blends With Modified Distillers Grains, Braden C. Troyer, Zac C. Carlson, Levi Mcphillips, Andrea K. Watson, J. C. Macdonald, Galen E. Erickson
Evaluating Finishing Performance Of Cattle Fed High- Moisture Corn And Steam- Flaked Corn Blends With Modified Distillers Grains, Braden C. Troyer, Zac C. Carlson, Levi Mcphillips, Andrea K. Watson, J. C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
The objective of this study was to determine the impacts of feeding different inclusions of high- moisture corn or steam- flaked corn in diets with 20% modified distillers grains plus solubles. Additionally, this study was designed to quantify any associative effects when high- moisture and steam- flaked corn are blended together with modified distillers grains plus solubles. Cross-bred yearling steers (n=90; BW=777 ± 7.9 lb) were individually fed using a Calan Gate system for 168 days. Animals received one of five finishing diets containing 100% high moisture corn, one of three blends of high moisture steam- flaked, or 100% steam- …
Growing Calf Intake Of Hay Or Crop Residue Based Diets, Aksel Wiseman, Andrea K. Watson, Rick Stock, Terry Klopfenstein
Growing Calf Intake Of Hay Or Crop Residue Based Diets, Aksel Wiseman, Andrea K. Watson, Rick Stock, Terry Klopfenstein
Nebraska Beef Cattle Reports
It is important to know or predict feed intake by growing calves on forage- based diets in order to balance these diets for nutrients such as energy and protein. Several growing calf studies with forage- based diets were summarized. ! ese studies evaluated the use of crop residue as a substitute for conventional forages, primarily grass hay. Calves gained about 1.8 lb/day for all forage- based diets. Calves consumed 2.6% of body weight daily when fed hay- based diets, but those fed residue with distillers grains diets consumed only 1.6% of body weight. However, when feeding the residue with distillers …
Impact Of Biochar Supplementation In Growing Diets On Greenhouse Gas Emissions, Jessica L. Sperber, Braden C. Troyer, Levi Mcphillips, Andrea K. Watson, Galen E. Erickson
Impact Of Biochar Supplementation In Growing Diets On Greenhouse Gas Emissions, Jessica L. Sperber, Braden C. Troyer, Levi Mcphillips, Andrea K. Watson, Galen E. Erickson
Nebraska Beef Cattle Reports
A study was conducted to evaluate the impact of feeding biochar growing diets on cattle performance and methane and carbon dioxide emissions. Two treatments were evaluated, a forage- based control diet without biochar and a diet with biochar included at 0.8% of the diet dry matter, replacing ! ne ground corn in the supplement. Pens of cattle were rotated through a two- sided emissions barn (2 pens evaluated simultaneously) to capture CH4 and CO2 production. " ere were no statistical differences in performance or gas emissions for steers fed a biochar supplemented diet compared to control. Numerically, biochar supplemented steers …
Alternative Heifer Development Systems Utilizing Corn Residue And Cover Crops, Hannah F. Speer, Hannah E. Riley, R. A. Cushman, Harvey C. Freetly, M. E. Drewnoski
Alternative Heifer Development Systems Utilizing Corn Residue And Cover Crops, Hannah F. Speer, Hannah E. Riley, R. A. Cushman, Harvey C. Freetly, M. E. Drewnoski
Nebraska Beef Cattle Reports
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Evaluation Of Biochar On Nutrient Loss From Fresh Cattle Manure, Jessica L. Sperber, Tyler Spore, Galen E. Erickson, Andrea K. Watson
Evaluation Of Biochar On Nutrient Loss From Fresh Cattle Manure, Jessica L. Sperber, Tyler Spore, Galen E. Erickson, Andrea K. Watson
Nebraska Beef Cattle Reports
An experiment was conducted to evaluate the impact of biochar and time on manure nutrient retention. Pans were used to simulate feedlot pens with 10 replications per treatment. Biochar was included at 0, 5, or 10% of manure dry matter with 30 and 60 day durations to evaluate pan contents over time. There was a 13- percentage unit increase in organic matter losses from day 30 to 60 for pans without biochar, and a 3- percentage unit increase for pans containing biochar. The least nitrogen loss was measured on the pans without biochar harvested at 30 days. Pans harvested at …
Stress Response Of Largemouth And Smallmouth Bass: Barbless Hooks Versus Barbed Hooks C & R, Wesley Steinmetz, Carson Tembrock
Stress Response Of Largemouth And Smallmouth Bass: Barbless Hooks Versus Barbed Hooks C & R, Wesley Steinmetz, Carson Tembrock
Journal of Earth and Life Science
Largemouth Bass Micropterus salmoides and Smallmouth Bass Micropterus dolomieu are two of the most popular species of fish for anglers to target in Minnesota. In this study, Largemouth Bass and Smallmouth Bass stress was characterized by handling time and recovery time. This study compares handling time and recovery time between barbed and barbless hooks. For Largemouth Bass, there was a significant relationship between recovery time and time out of the water for barbed (P = 0.02, R2 = 0.86) and barbless hooks (P < 0.01, R2 = 0.74). For Smallmouth Bass, there was no significant relationship between recovery time and time …
Continental-Scale Dynamics Of Avian Influenza In U.S. Waterfowl Are Driven By Demography, Migration, And Temperature, Erin E. Gorsich, Colleen T. Webb, Andrew A. Merton, Jennifer A. Hoeting, Ryan S. Miller, Matthew Farnsworth, Seth R. Swafford, Thomas J. Deliberto, Kerri Pedersen, Alan B. Franklin, Robert G. Mclean, Kenneth R. Wilson, Paul Doherty
Continental-Scale Dynamics Of Avian Influenza In U.S. Waterfowl Are Driven By Demography, Migration, And Temperature, Erin E. Gorsich, Colleen T. Webb, Andrew A. Merton, Jennifer A. Hoeting, Ryan S. Miller, Matthew Farnsworth, Seth R. Swafford, Thomas J. Deliberto, Kerri Pedersen, Alan B. Franklin, Robert G. Mclean, Kenneth R. Wilson, Paul Doherty
United States Department of Agriculture Wildlife Services: Staff Publications
Emerging diseases of wildlife origin are increasingly spilling over into humans and domestic animals. Surveillance and risk assessments for transmission between these populations are informed by a mechanistic understanding of the pathogens in wildlife reservoirs. For avian influenza viruses (AIV), much observational and experimental work in wildlife has been conducted at local scales, yet fully understanding their spread and distribution requires assessing the mechanisms acting at both local, (e.g., intrinsic epidemic dynamics), and continental scales, (e.g., long-distance migration). Here, we combined a large, continental-scale data set on low pathogenic, Type A AIV in the United States with a novel network-based …
Avian Use Of Exotic Street Treescapes In Metropolitan Areas Of Phoenix, Arizona, Brian E. Washburn, Karen Hoss, David L. Bergman
Avian Use Of Exotic Street Treescapes In Metropolitan Areas Of Phoenix, Arizona, Brian E. Washburn, Karen Hoss, David L. Bergman
United States Department of Agriculture Wildlife Services: Staff Publications
Urban areas are highly modified environments that are strongly influenced by a variety of anthropogenic factors. Consequently, these areas contain unique wildlife communities typically dominated by species that are generalist in nature or highly adaptable. We examined the use of five species of exotic treescapes by exotic and native birds in metropolitan areas of Phoenix, Arizona. House Sparrows [Passer domesticus (37%)], European Starlings [Sturnus vulagris (27%)], Mourning Doves [Zenaida macroura (11%)], and Great-tailed Grackles [Quiscalus mexicanus (7%)] were the most frequently observed species during the study. Approximately two-thirds (67%) of the birds observed during the study were exotic species. Avian …
Effects Of A Low Crude Protein Diet With And Without Spirulina Platensis Inclusion On White Blood Cell Profiles In Broilers, Heather Glenn, Garrett J. Mullenix, Gisela F. Erf
Effects Of A Low Crude Protein Diet With And Without Spirulina Platensis Inclusion On White Blood Cell Profiles In Broilers, Heather Glenn, Garrett J. Mullenix, Gisela F. Erf
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Spirulina microalgae is an alternative protein source under consideration for feed formulation in commercial broiler production. The purpose of this study was to determine the effects of a low crude protein (LCP) diet and a LCP diet formulated with 100 g/kg Spirulina (LCP-SP) on blood cell measurements in broilers. One-day-old Ross 708 male broilers were assigned to three dietary treatments: a standard crude protein (SCP), the LCP, or the LCP-SP diet, with five pens/treatment. When the chickens were 37-days old, blood samples were obtained from 2 birds/pen. Each blood sample was used to determine 1) the concentrations of white blood …
Exploring How Maternal Phosphorus Status Affects Calf Growth And Performance, Elizabeth Lafferty, Beth Kegley, Brittni Littlejohn, Jeremy Powell
Exploring How Maternal Phosphorus Status Affects Calf Growth And Performance, Elizabeth Lafferty, Beth Kegley, Brittni Littlejohn, Jeremy Powell
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Phosphorus is an important component of bodily functions and is critical for adequate growth and development. This experiment evaluated the effect of maternal phosphorus intake on the growth and health of the calves. Treatments were 1) a free-choice mineral containing no supplemental P or 2) a free-choice mineral with 4% supplemental phosphorus. Primiparous, or pregnant for the first time, crossbred Angus beef cows (n = 36) were stratified by body weight and pregnancy status (bred by artificial insemination or natural service) then assigned to pasture groups (4 groups, 2/treatment, 9 heifers/group). These bred heifers had been receiving these same dietary …
Willingness-To-Pay For Halal And Branded Poultry In Northern Mozambique, Alison J. Creasey, L. Lanier Nalley
Willingness-To-Pay For Halal And Branded Poultry In Northern Mozambique, Alison J. Creasey, L. Lanier Nalley
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
While price typically drives consumers’ food-purchasing decisions in low-income countries, religious attributes associated with food production and corporate branding could influence buying patterns. In Mozambique, more than 46% of people were living below the poverty line of ($0.31 USD) per day in 2018. That being said, in the Nampula Province (the location of this study), which is the second poorest province in the country, over 25% of the population is Muslim and may be willing-to-pay (WTP) a premium for Halal meat products to uphold Islamic beliefs. Like many parts of sub-Saharan Africa, poultry is the fastest-growing source of protein. Since …
Biological Activity Of Saussurea Amara (L.) Dc., Shagjjav Oyungerel
Biological Activity Of Saussurea Amara (L.) Dc., Shagjjav Oyungerel
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The medicinal application of specific plants over the long period in traditional medicine, suggests the presence of biologically active substances in those plant species. Saussurea amara (L.) DC. is a wild plant with a high feeding value because of its high protein content, vitamins, and minerals. S. amara is used in the traditional Mongolian medicine for the treatment of hepato-biliary disorders. The goal of this study was to evaluate the antioxidant and antimicrobial activities of S. amara. The antioxidant capacity of a methanol extract of plants was evaluated by analyzing its DPPH free-radical scavenging activity and reducing power …
Blood Parasites Of Fish Of The Baikal Basin, T. R. Khamnueva, Darima R. Baldanova
Blood Parasites Of Fish Of The Baikal Basin, T. R. Khamnueva, Darima R. Baldanova
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Eight species of trypanosomes were found in nine species of fish in the Lake Baikal: Trypanosoma percae, T. amurensis, T. schulmani, T. dogieli, T. magna, T. sp.1, T. sp.2. Five species of trypanoplasms were detected in the blood of 13 species of Baikal fish: Trypanoplasma lomakini, T. littoralis, T. cotti, T. zaikai, T. sp. In the erythrocytes of the sand sculpin, Leocottus kesslerii were observed haemogregarins.
Der Kormoran Phalacrocorax Carbo In Der Mongolei, Michael Stubbe, Lucie Marie Baltz, Davaa Lchagvasuren, Lukas Kratzsch, Lara-Sophie Dey, Annegret Stubbe
Der Kormoran Phalacrocorax Carbo In Der Mongolei, Michael Stubbe, Lucie Marie Baltz, Davaa Lchagvasuren, Lukas Kratzsch, Lara-Sophie Dey, Annegret Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The Great Cormorant Phalacrocorax carbo is a wide spread breeding species in Mongolia with a progressive population trend. Observations of the Mongolian-German Biological Expeditions were analyzed and summarized with data from literature. About 1,500 young birds were ringed in 2016 and 2017. One important recovery was coming from the wintering area Mai Po Marshes Nature Reserve of Hong Kong. It is unclear if all Mongolian Cormorants are flying at the same route to their wintering region in South China. The main feeding fishes in Mongolia belong to endemic species of the genus Oreoleuciscus (Cyprinidae). Measurements of 113 eggs from Tolbo- …
Mist-Netting Of Forest-Dwelling Bats In The Lazovsky State Nature Reserve, Russian Far East, Kerstin Birlenbach
Mist-Netting Of Forest-Dwelling Bats In The Lazovsky State Nature Reserve, Russian Far East, Kerstin Birlenbach
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Many bat species depend on a high value of healthy and undisturbed forests with a high ratio of roost sites in old tree stands. This investigation focused on the diversity, distribution and reproduction status of bats within the area of Lazovsky State Nature Reserve. The importance of an area for bats can be measured by the ratio of reproduction. The most important and sensitive time in a bats yearly circle is the time of hibernation in winter and the reproduction time of females. From the beginning of July to the end of August 2007, in total 139 bats of eight …
The Formation Of Aufeis And Its Impact On Infrastructure Around Ulaanbaatar, North-Central Mongolia, Michael Walther, Vanchindorj Batsaikhan, Avirmed Dashtseren, Yamkhin Jambaljav, Khurelbaatar Temujin, Ganbold Ulanbayar, Ulrich Kamp
The Formation Of Aufeis And Its Impact On Infrastructure Around Ulaanbaatar, North-Central Mongolia, Michael Walther, Vanchindorj Batsaikhan, Avirmed Dashtseren, Yamkhin Jambaljav, Khurelbaatar Temujin, Ganbold Ulanbayar, Ulrich Kamp
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In this study aufeis features and their formation under natural conditions and in an urban surrounding in north-central Mongolia were investigated. Used methods included field observations, Electrical Resistivity Tomography (ERT) as well as analyses of satellite imagery and meteorological data. Aufeis formation is related to streams, springs, and ground conditions, particularly soil moisture; the formation of both spring aufeis and river aufeis follows a seasonal cycle. The meteorological data from 1969 to 2018 indicate that the mean annual air temperature (MAAT) increased by 2.6 °C, whilst no significant changes were observed for precipitation. Between 1992 and 2018, aufeis areas significantly …
The House Mouse Mus Musculus In Mongolia: Taxonomy, Status, And Ecology Of A Neglected Species, Rico Appenborn, Katrin Lammers, Bettina Harr, Davaa Lkhagvasuren, Ravchig Samiya, Michael Stubbe, Hermann Ansorge
The House Mouse Mus Musculus In Mongolia: Taxonomy, Status, And Ecology Of A Neglected Species, Rico Appenborn, Katrin Lammers, Bettina Harr, Davaa Lkhagvasuren, Ravchig Samiya, Michael Stubbe, Hermann Ansorge
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Although the house mouse as a common and widely distributed species is probably best-studied among small mammals, there is a lack of fundamental knowledge regarding species identity, morphology and ecology in Mongolia. Consequently, this study provides results of basic biological research on the Mongolian house mouse. A total of 172 specimens have been studied based on samples collected during the period 1962 to 2016. Using genetic and morphological markers, the taxonomic examination resulted in classification as Mus musculus musculus LINNAEUS, 1758. To characterize the Mongolian house mouse, three fur color traits and 23 metric body and skull traits were analyzed. …