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Articles 32881 - 32910 of 36396
Full-Text Articles in Entire DC Network
Discovery Of The Northern Hog Sucker In The Ottertail River, Mark A. Otnes
Discovery Of The Northern Hog Sucker In The Ottertail River, Mark A. Otnes
Journal of the Minnesota Academy of Science
On June 3, 1973 several specimens of the Northern Hog Sucker (Hypentelium nigricans), were collected from a six-mile stretch of the Ottertail River, Aurdal Township, Ottertail County in Minnesota. Previous to this the Northern Hog Sucker has never been collected or reported from the Red River drainage, of which the Ottertail River is a part, nor from Upper Mississippi River Basin adjacent to the Red River drainage. As far back as 1907 researchers erroneously reported the Northern Hog Sucker from the Upper Mississippi River Basin.
Distribution Of The Blue-Spotted Salamander Ambystoma Laterale Hallowell In Minnesota, David C. Kramer
Distribution Of The Blue-Spotted Salamander Ambystoma Laterale Hallowell In Minnesota, David C. Kramer
Journal of the Minnesota Academy of Science
This paper brings together the known locality records of Ambystoma laterale in Minnesota. Recent nomenclature changes involving this salamander, its favored habitat and possible range extensions also are included .
Taxonomic Relationship Of Hybrid Peafowl-Guineafowl: Preliminary Study Of Serum Proteins, Earl L. Hanebrink, Charles Gruver, Richard Van Grouw
Taxonomic Relationship Of Hybrid Peafowl-Guineafowl: Preliminary Study Of Serum Proteins, Earl L. Hanebrink, Charles Gruver, Richard Van Grouw
Journal of the Arkansas Academy of Science
Disc electrophoresis of serum proteins was conducted for the peafowl, guineafowl, peafowl-guineafowl hybrid, and domesticated chicken. The four birds analyzed are of the same order but family status has been questioned. Serum protein patterns for all birds were similar in the anodic regions but different in the cathodic regions. The peafowl-guineafowl hybrid showed a pattern more similar to that of the peafowl than to that of the guineafowl. In morphologic characters the hybrid also was more similar to the peahen than to the guineafowl. In the cathodic region the serum protein pattern of the guineafowl was more unlike the patterns …
Fisheries Report No 12 - Results Of A Biological Survey Of A Proposed Wildlife Sanctuary At Dragon Rocks Near Hyden, Western Australia, N. L. Mckenzie, A. A. Burbidge, N. G. Marchant
Fisheries Report No 12 - Results Of A Biological Survey Of A Proposed Wildlife Sanctuary At Dragon Rocks Near Hyden, Western Australia, N. L. Mckenzie, A. A. Burbidge, N. G. Marchant
Fisheries Research Reports
In 1972, three visits were made to an area of vacant crown lam 30 kilometres south-south~east of Hyden, Western Australia.
A preliminary survey was made in April 1972 and following this recommendations were made on the equipment and staff required for a detailed survey of the vegetation and animals.
From the 30th July to the 4th August 1972, a team from the Fauna Research Branch of the Department of Fisheries and Fauna began a detailed fauna survey.
Between the 20th August and the 25th August 1972, the fauna survey was continued am a botanist from the Western Australian Herbarium undertook …
Ec73-1907 Internal Parasites Of Cattle, D. L. Ferguson
Ec73-1907 Internal Parasites Of Cattle, D. L. Ferguson
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 73-1907 is about internal parasites in cows and how they affect cattle production.
Internal parasites continue to be one of the major problems confronting cattle producers. In 1965, the United States Department of Agriculture estimated that internal parasites in cattle caused an average annual loss of $161,678,000. The internal parasites responsible for the annual loss are listed below.
Anaplasmosis. .$ 36,001,000
Coccidiosis . . . .14,569,000
Worm Parasites .100,046,000
Liver Flukes . . . 3,022,000
Trichomoniasis .. 8,040,000
In cattle the effects of internal parasites will be well camouflaged. However, additional feed will be required to reach market …
Sheep Liver Copper Levels, J W. Gartrell
Sheep Liver Copper Levels, J W. Gartrell
Experimental Summaries - Plant Research
Introduction.
Our knowledge, and consequently our advise to farmers on the needs for copper fertilizers in the wheatbelt have been largely based on thoses of plants - cereals in particular. For one thing, definitive experimentation is easier with cereals than sheep.
Discussion.
Interpretation.
Appendix.
Dried Whey As An Additive For Alfalfa Haylage And As A Grain Supplement For Dairy Cows, Sitakantha Dash
Dried Whey As An Additive For Alfalfa Haylage And As A Grain Supplement For Dairy Cows, Sitakantha Dash
Electronic Theses and Dissertations
This research was conducted to explore the possibility of utilizing surplus whey in dairy cattle rations. Four experiments determined the influence of whey on preservation, digestibility and feeding value of alfalfa haylage. The last experiment was initiated to evaluate dried whey as a grain supplement. When dried whole whey was added at O, 1, and 10% levels to reconstituted alfalfa haylage (chopped baled hay plus 50% water) and preserved in sealed metal containers, it reduced pH, decreased acetic acid, and increased lactic acid. The general pattern of fermentation was better in whey-treated haylages than in corresponding untreated haylages. An in …
Objective Measurement And The Stud Breeder, B R. Beetson
Objective Measurement And The Stud Breeder, B R. Beetson
Journal of the Department of Agriculture, Western Australia, Series 4
The movement towards sale of wool by certificate and sample highlights the significance of objective measurement in the Merino stud breeders' selection of his top rams.
This article suggests how stud breeders should use the Department of Agriculture's Flock Testing Service to gain genetic progress in wool producing ability without loss of visual buyer appeal.
Studs' use of the service will be evaluated in 1974.
Lot Feeding Sheep In Sheds, H E. Fels, B. Malcolm
Lot Feeding Sheep In Sheds, H E. Fels, B. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
The need to gather and hold sheep for slaughter or live shipment led a West Australian company!, with the Department of Agriculture, to investigate the use of sheds for short term lot feeding of sheep. Preliminary examination suggested that feedlot sheds connected by a sheep footpath to the abattoirs, railway or saleyards could be cheaper as well as more practicable than continued use of holding paddocks.
The first week or two are commonly the most difficult in lot feeding sheep or cattle. Long-term indoor lot-feeding is a normal practice in some overseas countries but we did not know whether untrained …
New Cattle Breeds : How Do We Use Them?, J L. Anderson
New Cattle Breeds : How Do We Use Them?, J L. Anderson
Journal of the Department of Agriculture, Western Australia, Series 4
Traditionally, beef production in Australia has been based on a few of the many breeds that developed in the United Kingdom. Pedigree breeding was used to maintain these breeds and was probably a sound policy, when combined with selection on performance, to maintain and concentrate merit in stud herds.
Emphasis on pure breeding has caused many prejudices against the practices of mixing and selection which were the original bases of breed formation.
Despite the adaptation of British breeds to the various environments in Australia there was, and still is, continuous interest in introducing other breeds of cattle to improve beef …
Clover Disease : What Do We Know And What Can We Do, T Marshall
Clover Disease : What Do We Know And What Can We Do, T Marshall
Journal of the Department of Agriculture, Western Australia, Series 4
A review of 30 years' study and practical experience of clover disease in Western Australia—and a summary of current recommendations for reducing problems in sheep grazing pastures based on oestrogenic subterranean clover.
Parameters Of Growth Of Holstein-Friesian Bulls, L. L. Calo, R. E. Mcdowell, L. Dale Van Vleck, P. D. Miller
Parameters Of Growth Of Holstein-Friesian Bulls, L. L. Calo, R. E. Mcdowell, L. Dale Van Vleck, P. D. Miller
Department of Animal Science: Faculty Publications
Growth records of 504 pedigree selected Holstein-Friesian bulls by 120 sires collected for progeny testing at the American Breeders Service, Inc., DeForest, Wisconsin from 1964 to 1971, were studied to determine the shape of the growth curve, relationships among body weights and growth rates at various ages and to estimate heritability of growth. Body weight and average/daily gain were consistently higher than the previous growth standards for Holstein-Friesian bulls. Bulls weighed about 480 kg at 15 months, which was 46% of average mature weight. Average daily gain ranged from 1.3 to 0.8 kg between 6 and 18 months of age. …
Effect Of Amino Acids On Non-Protein Nitrogen Utilization By G-F Swine, P. D. Platter, E. R. Peo, Jr., P. E. Vipperman, P. J. Cunningham
Effect Of Amino Acids On Non-Protein Nitrogen Utilization By G-F Swine, P. D. Platter, E. R. Peo, Jr., P. E. Vipperman, P. J. Cunningham
Department of Animal Science: Faculty Publications
Two metabolism and one feeding experiment were conducted with a total of 118 crossbred pigs to determine the effect of amino acids on non-protein nitrogen (NPN) utilization by G-F swine.
Reproductive Efficiency In Aged Female Rabbits Given Supplemental Progesterone And Oestradiol, Larry L. Larson, C. H. Spilman, H. O. Dunn, R. H. Foote
Reproductive Efficiency In Aged Female Rabbits Given Supplemental Progesterone And Oestradiol, Larry L. Larson, C. H. Spilman, H. O. Dunn, R. H. Foote
Department of Animal Science: Faculty Publications
The reproductive efficiency of twenty-eight aged does, 49 to 72 months old, was compared with that of eighteen young does, 6 to 13 months old. Fertilization rate and development in vitro of fertilized ova from rabbits induced to superovulate were not influenced by the doe's age. Ovulation rates following natural mating were only slightly reduced with age. However, the number of embryos per doe was much greater in young than in old does at 12 and 24 days post coitum. All young does had viable embryos, whereas the percentages of aged does with detectable implantation sites and viable embryos were …
Subjective Evaluation Of Teat Canal Anatomy, R. D. Appleman
Subjective Evaluation Of Teat Canal Anatomy, R. D. Appleman
Department of Animal Science: Faculty Publications
Since radiographic techniques have shown that streak canals with larger diameters tend to milk-out faster and are more susceptible to new intramammary infections, a practical visual test was sought to provide easier determination of cows with either extremely narrow (slow milking) or extra wide (susceptible to new infections) streak canals.
A subjective teat classification scheme was developed to describe five different teat-end shapes in 159 Holstein and Brown Swiss cows in the University of Nebraska dairy herd. Approximately one-fourth of the cattle had pointed or round teat ends, one-half had fiat or near flat, and one-fourth were either disk or …
Block And Bridle Annual, 1973
Block and Bridle Annual (1933–2021)
Table of Contents:
Dr. Baker's Address
Staff Comments
President's Speech
Advisors
Officers
Committee Chairmen
Membership
Animal Science Staff
Graduate Students
Animal Science Graduates
Quarter Horse Show
Appaloosa Horse Show
Program Revue
Livestock Judging Contest
Meats Judging Contest
Honor's Banquet
Junior Scholarship Award
Senior Merit Trophy Winner
Honoree Portrait Presentation
Page ASAS Trip
B & B State Fair Awards
Fall Steak Fry
Kids Day
Little AK-SAR-BEN
Ham Sales
Christmas Coffee
B&B Dance
Queen Finalists
Queen
Number Stickers & National B & B Report
Spring Tour
Senior Livestock Judging Team
Senior Meats Judging Team
Junior Livestock Judging Team
Junior Meats Judging Team …
Evaluation Of Purebreds And Two-Breed Crosses In Swine: Feedlot Performance And Carcass Merit , R. K. Johnson, I. T. Omtvedt, L. E. Walters
Evaluation Of Purebreds And Two-Breed Crosses In Swine: Feedlot Performance And Carcass Merit , R. K. Johnson, I. T. Omtvedt, L. E. Walters
Department of Animal Science: Faculty Publications
Feedlot performance of 941 barrows and gilts and carcass traits of 190 barrows of purebreds and crossbreds of the Duroc, Hampshire and Yorkshire breeds were evaluated for differences between purebreds and reciprocal crosses and for heterosis. Purebred and crossbred litters were farrowed contemporaneously at the Ft. Reno Experiment Station in the 1971 spring and fall farrowing seasons. Rather distinct differences between the pure breeds were evident for most traits. In general, Durocs gained weight more rapidly than Hampshires and Yorkshires while Yorkshires were the most efficient pure breed. Hampshire barrows had less backfat, more loin eye area and more total …
Management Policies For Increasing Sheep Turnoff, T Marshall
Management Policies For Increasing Sheep Turnoff, T Marshall
Journal of the Department of Agriculture, Western Australia, Series 4
An increase in the proportion of mated ewes in West Australian flocks could increase the number of sheep available for sale, without greatly affecting total sheep numbers or reducing farm income. This would help overcome a critical sheep shortage.
Selenium And Sheep Health, B J. Gabbedy, A. J. Hadlow
Selenium And Sheep Health, B J. Gabbedy, A. J. Hadlow
Journal of the Department of Agriculture, Western Australia, Series 4
For many years selenium was known to the livestock industries only because of its toxic properties. Some soils, particularly in the United States of America, were so high in selenium that many animals died after grazing plants on these soils.
In 1957 it was discovered that selenium supplements could prevent a number of diseases and, from that time, selenium has been regarded as an essential trace element.
White muscle disease (WMD) was first recognised in sheep in Western Australia in 1960 and has occurred each year since.
Relationship Between Weight And 40K Count In Steers , R. K. Johnson, L. E. Walters, J. V. Whiteman
Relationship Between Weight And 40K Count In Steers , R. K. Johnson, L. E. Walters, J. V. Whiteman
Department of Animal Science: Faculty Publications
Thirty-six Angus-Hereford steers were fed four diets of different potassium concentration for 2-week periods such that each steer received each diet for a 2-week period. The relationship between 40K count loss and weight loss during a 24-hr. shrink period was evaluated by regression analysis. At the end of each of the four feeding periods the steers ,were weighed and 40K counted unshrunk and again after 24-hr. shrink. The mean weight loss during shrink was similar for all treatments (overall mean of 22.8 kg), however the mean 40K count loss was larger for the high potassium diets than …
Effect Of A Combination Of Diethylstilbestrol And Methyltestosterone And Protein Level In The Diet On Performance And Carcass Traits In An Unselected Line Of Swine, L. E. Lucas, E. R. Peo, Jr., A. J. Svajgr
Effect Of A Combination Of Diethylstilbestrol And Methyltestosterone And Protein Level In The Diet On Performance And Carcass Traits In An Unselected Line Of Swine, L. E. Lucas, E. R. Peo, Jr., A. J. Svajgr
Department of Animal Science: Faculty Publications
Two experiments involving 372 barrows were conducted to evaluate the effects of orally administered diethylstilbestrol (DES) and methyltestosterone (MT) with varying levels of dietary protein.
Gain, Feed Conversion And Carcass Traits Of Swine Fed Under Two Nutritional Regimes, P. J. Cunningham, T. E. Socha, E. R. Peo, Jr., R. W. Mandingo
Gain, Feed Conversion And Carcass Traits Of Swine Fed Under Two Nutritional Regimes, P. J. Cunningham, T. E. Socha, E. R. Peo, Jr., R. W. Mandingo
Department of Animal Science: Faculty Publications
Data involving 505 Gene Pool boars, barrows and gilts and 126 Hampshire boars and gilts fed two nutritional diets were presented. One diet consisted of high lysine corn, minerals and vitamins (10% protein) while the other diet was a 14% protein corn-soy diet.
Factors For Extending In-Progress Lactation Records To A 305-Day Equivalent, Jeffrey F. Keown, L. Dale Van Vleck
Factors For Extending In-Progress Lactation Records To A 305-Day Equivalent, Jeffrey F. Keown, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
Paper for Presentation at the 64th Annual Meeting of the American Society of Animal Science. The data consisted of 204,558 complete Holstein lactations in 2,100 herds compiled by the New York Dairy Records Processing Laboratory from 1959 to 1969. All lactation records had to have a 9th or 10th test day present to be regarded as complete. The generalized least squares analysis used a model including effects due to the mean, herd-year and season-age-stage of freshening which were assumed to be fixed. The error term included the random effects due to the cow and residual. Generalized least squares estimates for …
Reproductive Efficiency And Viability In Two Bos Indicus And Two Bos Taurus Breeds In The Tropics Of India And Colombia, L. (Lemka) Hamed, R. E. Mcdowell, L. Dale Van Vleck, H. Guha, J. J. Salazar
Reproductive Efficiency And Viability In Two Bos Indicus And Two Bos Taurus Breeds In The Tropics Of India And Colombia, L. (Lemka) Hamed, R. E. Mcdowell, L. Dale Van Vleck, H. Guha, J. J. Salazar
Department of Animal Science: Faculty Publications
Records from two herds in India and two in Columbia representing respectively two breeds of Bos indicus (Hariana and Deshi) and two Bos taurus breeds—Blanco Orejinegro (BON) and Costeño Con Cuernos (CCC) were evaluated for breeding efficiency and viability. Average age at first calving was 52.1, 46.3, 39.5 and 40.7 months for Hariana, Deshi, CCC and BON. Season of birth did not influence age at calving. Ranking for calving interval was similar, average 479, 418, 396 and 382 days with season effects significant (P<.05) for only Deshi. BON and CCC had fewer days open but much shorter lactation periods, average 73 and 157, thus days carried calf in lactation were similar for all breeds. Percent of time dry per calving interval was high for all breeds, 44.2, 36.7, 64.1 and 81.0 for Hariana, Deshi, BON and CCC. Average annual mortality of females by 12 months of age was 23.6% for Hariana, 17.0% Deshi and 27.0% BON. In the same herds 46.4%, 51.1% and 49.0% of females born alive lived to first calving and annual losses among cows were 18.0%, 17.0%, and 21.0%; therefore, affording little opportunity for selection among females. Temperament, as determined by response to the milking process with and without the calf present, showed all the breeds were similar in this respect. Environmental effects were most important for all traits but genetic differences were indicated for age at first calving and milk yield. On a theoretical basis little gain could be expected in net dairy merit from crosses between the Columbian and Indian breeds.
Genetic Aspects Of Beef Production Among Holstein-Friesians Pedigree Selected For Milk Production, L. L. Calo, R. E. Mcdowell, L. Dale Van Vleck, P. D. Miller
Genetic Aspects Of Beef Production Among Holstein-Friesians Pedigree Selected For Milk Production, L. L. Calo, R. E. Mcdowell, L. Dale Van Vleck, P. D. Miller
Department of Animal Science: Faculty Publications
To explore the potential of cattle to produce both milk and beef, the genetic aspects of beef production among Holstein-Friesian bulls pedigree selected for milk were studied. The data included growth records of 504 bulls (DPT) by 120 sires (SPT) pedigree selected for progeny testing by American Breeders Service, 1964 to 1971. DPT bulls with proofs had an average predicted difference for milk (PMD) of +180 kilograms. The daughter average was 7,273 kg per lactation under varying herd conditions. Sires accounted for 10% of the variation in average daily gain (ADG), 10% in daily gain per 100 kg body weight …
Partial Characterization Of Animal Growth Inhibitors From Soybeans, Joseph Richard Uckert
Partial Characterization Of Animal Growth Inhibitors From Soybeans, Joseph Richard Uckert
Electronic Theses and Dissertations
The pH 4. 4 supernatant from raw (unheated) soybean meal was separated into 5 fractions on a Sephadex G-25 column in efforts to isolate the animal growth inhibitors present soybeans. Each fraction was added to the diet of growing mice and growth inhibition (GI) activity was determined by comparing their_ growth rates to g1"'owth rates achieved on an autoclaved soybean meal diet. Fractions I and II each contained about 50% of the GI activity, with a trace in fraction III and none in fractions IV and V. Only fraction I contained trypsin inhibitor and caused pancreatic enlargement. Fraction I was …
The Vitamin E Status Of Lactating Dairy Cows After Receiving Stored Feeds For 15 Months, Marc Dellhime Eckhart
The Vitamin E Status Of Lactating Dairy Cows After Receiving Stored Feeds For 15 Months, Marc Dellhime Eckhart
Electronic Theses and Dissertations
The trend in dairying in recent years has been towards more confinement housing and higher producing animals. Such confinement housing often leads to year-around feeding of stored feeds, such as silage, haylage, and hay with no pasture grazing or feeding of freshly cut forages. Since stored feeds contain substantially less vitamin E than those same forage when freshly cut or grazed, it may be important to re-evaluate the vitamin E status of cows fed stored feeds continuously. The requirement of cattle for vitamin E are largely unknown. The one study involving adult cattle, conducted 25 years ago, found that 1.82 …
The Eriophyoidea Of South Dakota, Magdalena Lopez Briones
The Eriophyoidea Of South Dakota, Magdalena Lopez Briones
Electronic Theses and Dissertations
This paper presents the results of the taxonomic investigation of the Eriophyoidea in South Dakota. Information is given on the morphology, discussion of variation within a population, distribution, damage in host plants, economic importance and techniques of collecting and preparing specimens. There are 42 previously described species included in this study. Of the 48 species studied, six are new. Species described are: Aculops maximilianae, Diptacus pengsonae, Eriophyes arceosae, Eriophyes taylori, Tegonotus lindenus, and Tetra mcdanieli.
The Effects Of Crowding On The Diurnal Ascorbic Acid Levels Of Albino Rats, Mary Jo Barr
The Effects Of Crowding On The Diurnal Ascorbic Acid Levels Of Albino Rats, Mary Jo Barr
Masters Theses
The adrenal physiology of the albino rat was studied through the measurement of adrenal ascorbic acid levels. A cyclic phenomenon was observed which follows the diel periodicity of the animal. Ascorbic acid values were found to be characteristically higher in males than in females. A similar difference was also seen in populations divided into young animals (body weight less than 175 grams) and old animals (body weight greater than 175 grams). Crowding, induced by manipulating the area of cage space per gram of body weight, was observed to be a definite stressor and caused the adrenal ascorbic acid levels to …
A Study Of Organochlorine Insecticides In Freshwater Crayfish -- Analytical Problems And Biomonitoring Survey, Robert C. Vanderjack
A Study Of Organochlorine Insecticides In Freshwater Crayfish -- Analytical Problems And Biomonitoring Survey, Robert C. Vanderjack
Masters Theses
Crayfish were collected from 3 sites on Polecat Creek, Coles County, Illinois in early spring, early summer, and late summer of 1972. Pesticides were extracted from the crayfish tissue in a one step procedure utilizing a Florisil elution column. Analysis was by electron capture gas chromatography. Pesticide residues in the nannogram range were analyzed and background contamination was an important consideration. Sources of background contamination were investigated and teflon stopcocks, Florisil, and residues on “cleaned” glassware were found to be major contamination sources. Distilled water used in flushing glassware should also be considered a potential contamination source.
Aldrin, dieldrin, and …