Digital Commons Network^™

Manufacture Of Monterey Cheese From Preacidified Milk, Faisal O. Mohamed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Whole milk acidified to pH 5.3 with hydrochloric acid was used for the manufacture of Monterey cheese. The milk was inoculated with one and one-half percent lactic starter and set with 12.5 ml rennet per 1000 pounds of milk. Normal washing treatments resulted in cheese with moisture in excess of 44 percent. Moisture content was brought below 44 percent by using wash water at a temperature such that the water-curd-whey mixture was 35 C. The pH of cheese made by preacidification was all between 5.21 and 5.09. No acid defects were encountered. Preacidification eliminated chance of spoilage or losses caused …

An Evaluation Of In-Stream Structures Designed To Provide Fish Habitat, Charles H. Call Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In-stream concrete structures were studied through model tests and river tests. The model studies indicated that four designs provided good habitat in the model stream. These structures were the inverted weir, the "V" structure, the slab with legs and the cylinder. Through the river studies it was determined that these structures did not influence enough of the total river area to be effective in providing good fish habitat. Also an appreciable amount of yearly maintenance would be required to free the structures from silting in, debris, and vandalism. The slab with legs was the only promising structure.

Vocalizations In A Population Of Green-Tailed Towhees (Chlorura Chlorura), Timothy Andrus Burr

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Studies of vocalizations in a montane population of Green-Tailed Towhees were conducted during the summer months of 1971 and 1972 in Cache County, Utah. The song and call repertoiries of 10 breeding pairs were recorded and analyzed on a sound spectograph.

Males averaged 8.7 different song and 18.2 different not types. Song variation on the population level is high (58 different songs) but the sharing of these songs among the males is low (22.4). Populational note structure is equally diverse but reveals a greater degree of sharing (75%).

Both males and females used three calls, the meow, tick, …

53 Species Make Endangered List, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Annotated Checklist Of Mammals Of The Yucatan Peninsula, Mexico. Iii. Marsupialia, Insectivora, Primates, Edentata, Lagomorpha, J. Knox Jones, Hugh H. Genoways, James D. Smith

University of Nebraska State Museum: Mammalogy Papers

This is the third in a series of papers detailing the distribution of mammalian species occurring on the Yucatan Peninsula of Mexico. The present paper deals with 12 native species belonging to the following orders: Marsupialia, six; Insectivora, one; Primates, two; Edentata, two; Lagomorpha, one. None of these species is endemic to the peninsula, although it constitutes the major part of the geographic range of Alouatta pigra. Endemic subspecies include Didelphis virginiana yucatanensis, Marmosa mexicana mayensis, and Sylvilagus floridanus yucatanicus.

Annotated Checklist Of Mammals Of The Yucatán Peninsula, México. Ii. Rodentia, J. Knox Jones Jr., Hugh H. Genoways, Timothy E. Lawlor

University of Nebraska State Museum: Mammalogy Papers

The Yucatán Peninsula, as encompassed in this series of papers, includes the Mexican states of Campeche and Yucatán, and the Federal Territory of Quintana Roo. This region is a low-lying plain that rises gently in elevation from north to south. It is surrounded on three sides by water and bounded on the south by British Honduras (i.e. Belize), Guatemala, and the Mexican state of Tabasco. The vegetation of the peninsula increases in height from north to south and from the coast inland. Generally, forest to the north is xerophilic, but that of the southern part of the peninsula is tall, …

Loss Of Most Of Mulberry Crop This Season Severe Blow To Birds, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Bird Stories Woven Into Easter Narrative, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Bird Watcher Baffled By Cries In The Night, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

A Survey Of The Herpetofauna Of The Upper Lick Fork Watershed, Rowan County, Kentucky, Ronald A. Bertram

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Ronald A. Bertram on April 3,1974.

Cedarburg Bog -A National Natural Landmark, Forest Sterns, Diane Ringger

Field Station Bulletins

The Cedarburg Bog and adjoining upland beech woods were designated, with nine other Wisconsin locations, as National Natural Landmarks. The other sites are the Wyalusing Hardwood Forest in Grant County, Summerton Bog in Marquette County, the Kakagon Sloughs in Ashland County, Abraham's Woods in Green County, Spruce Lake Bog in Fond du Lac County, the Flambeau River Hardwood Forest in Sawyer County, the Finnerud Pine Forest in Oneida County, the Chippewa River Bottoms in Buffalo County and the Chiwaukee Prairie in Kenosha County. Previously, the Ridges Sanctuary in Door County was the only Wisconsin site included.

A Study Of Aquatic Hyphomycetes Of Southeastern Wisconsin, John W. Baxter, Juanita Bronaugh

Field Station Bulletins

This paper presents a portion of the results of a distributional and ecological study of aquatic Hyphomycetes in seven counties of southeastern Wisconsin. Results of the water chemistry studies and laboratory studies on the physiology of these fungi will be published separately in Mycopathologia et Mycologia Applicata. Part of this research was supported by a grant from the Graduate Faculty Research Committee. In the present investigation 28 species, representing 21 genera, were found growing on submerged decaying leaves in streams, lakes and bogs. Three previously undescribed species were found as loose spores in foam samples from Cedar Creek and Sauk …

Dispersal Movements Of Juvenile Black-Capped Chickadees, John R. Meyer, Charles M. Weise

Field Station Bulletins

To learn more about Chickadee dispersal this study was undertaken from the summer of 1970 through the summer of 1973, involving the color-banded population of Black-capped Chickadees at the UW-M Cedar-Sauk Field Station described by Weise (1971). The most intensively studied birds were located in about 26 hectares of upland beech-maple forest and about 30 hectares of the cedar-tamarack bog forest at and immediately surrounding the Field Station. The territories of the breeding pairs in these areas were mapped, and as many nests as possible were located. The development of the young in accessible nests was followed, and just before …

Finitely Generated Modules Over Bezout Ringsrwiegand@Unl.Edu, Roger Wiegand, Sylvia Wiegand

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Let R be a Bezout ring (a commutative ring in which all finitely generated ideals are principal), and let M be a finitely generated R -module. We will study questions of the following sort: (A) If every localization of M can be generated by n elements, can M itself be generated by n elements? (B) If M 0 R m = Rn for some m, n, is Af necessarily free? (C) If every localization of M has an element with zero annihilator, does M itself have such an element? We will answer these and related questions for various familiar classes …

End Matter, Vol. 19 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Comparison Of Meteorologic Measurements From Irrigated And Non-Irrigated Plots, Provo, Ut, 1970–1972, Ferron L. Andersen, Phil D. Wright, J. Carl Fox

Brigham Young University Science Bulletin, Biological Series

A comparative study of micrometeorologic conditions on irrigated and non-irrigated pasture plots was conducted at Provo, Utah, from 1970 to 1972. Daily measurements were taken of the following: precipitation cither as rain or snow, new snowfall and total snow depth during the winter; relative humidity in a standard weather shelter; number of hours at maximum relative humidity; cloud cover each morning; potential evaporation; total wind 1 m above ground level; temperature extremes in a standard weather shelter; and temperatures both on irrigated and non-irrigated plots with sensing devices located 5 cm beneath soil surface under grass cover, at soil surface …

A Taxonomic Study Of The Western Collared Lizards, Crotaphytus Collaris And Crotaphytus Insularis, Nathan M. Smith, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The heterogeneous nature of the collared lizards west of the Colorado River prompted this study. Samples from known populations of C. c. auriceps, C. c. baileyi, and C. c. fruscus were used as a base for defining the western populations. External morphology and cranial morphology were compared by cluster, canonical, and discriminant analyses.

Results of these analyses show a western complex of four populations which are distinct from the three base populations of the collaris complex. Members within the western complex are distinguishable with at least 90 percent reliability by discriminant analysis. Because of intergradation patterns seen in western Sonora, …

Front Matter, Vol. 19 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 19 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Nesting Ecology Of The Double-Crested Cormorant (Phalacrocorax Auritus Auritus) On Utah Lake, Ronald M. Mitchell

Theses and Dissertations

Research on the nesting of the Double-crested Cormorant (Phalacrocorax auritus auritus) was undertaken to determine the nesting ecology of the bird on Utah Lake, Utah County, and the possible effects that diking Provo Bay would have on the cormorants breeding there. In 1973, two colonies in Provo Bay were visited weekly to determine laying dates, incubation period, clutch size, and hatching dates. Another colony, located on the dike of the Geneva Steel Reservoir, was visited daily during the spring and summer of 1973. At this colony, egg-laying occurred from 13 April to 17 May. The average clutch size was 3.8, …

Survey Of Cultchless Spat Planted By The Vmrc In Nomini And Lower Machodoc Creek, Dexter S. Haven

Reports

As part of a major repletion activity by the VMRC, cultchless spat were planted in Lower Machodoc Creek and Nomini Creek in October and November 1973. The Virginia Institute of Marine Science surveyed these plantings on 10 and 11 December, 1973. The areas planted and surveyed are shown in figures 1 and 2.

In Lower Machodoc Creek, 5.35 acres were planted with 240.5 bushels of cultchless spat during October, 1973. Within this area, five sub-areas were seeded, each with about one million spat. In Nomini Creek there were two planting areas. The largest was located in Nomini Cut, and seven …

Oyster Spatfall On Shellstrings In Virginia Rivers: 1973 Annual Summary, Dexter S. Haven, Paul C. Kendall

Reports

Although oyster setting levels in most Virginia river systems are still far below trose whicb commonly occurred prior to 1960, the 1973 season marked an improvement over the previous year when Tropical Storm Agnes raged througb the Chesapeake Bay region, creating adverse environmental conditions which were largely responsible_ for the_ lowest s},tting levels on record, Data for 1972,

Oyster And Hard Clam Distribution In The Lower York River With Notes On Culture, Disease And Pollution, Dexter Haven, Paul Kendall

Reports

Outlined in this report are aspects of the distribution and. culture of clams and oysters of the lower York River. Included are two acetate overlays attached to u. S. Coast and Geodetic Survey Chart 492. The first shows locations and density of the hard clam Mercenaria mercenaria; the second shows the location of public oyster and clam grounds, oyster planting ground, and half-acre plots held by "riparian rights". Accompanying the latter chart is a complete list of the names and addresses of the holders of all "riparian rights" and lease holders (Appendix I). The area covered by this list is …

Taxonomic Studies Of Trombiculid Mites, Jack T. Reed

Theses and Dissertations

Five publications and one manuscript concerning the taxonomic studies of trombiculid mites are submitted. Publications include a revision of the North American genus Comatacarus Ewing, the erection of the following genera by Brennan and Reed: Loomisia, Atelepalme, Phalcophila, and Nycterinastes. Discussions of the genera Aitkenius Brennan and Polylopadium Brennan and Jones are also included. The subfamily Leeuwenhoekinae is reviewed on the basis of neo-tropical representatives (unpublished manuscript). The genus Odontacarus comprises 66% of the chiggers examined, and 82% of these were identified as O. tubercularis (Brennan). Odontacarus fieldi Brennan and Jones and O. cayolargoensis Brennan are synonomized under O. tubercularis …

Plans For Steel Shot On Bird Hunts Eyed, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Pair Find Inca Doves On Farm Near Fw, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Gulf Trip Cures Itch To View Other Fowl, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Relationship Of Various Measures Of Performance With Ovulation Rate And Number Of Embryos 30 Days After Breeding In Gilts, L. D. Young, I. T. Omtvelt, R. K. Johnson

Department of Animal Science: Faculty Publications

This study involved the records of 241 purebred Duroc, Hampshire and Yorkshire gilts and 103 two-breed cross gilts resulting from all possible crosses among the purebreds. In purebred gilts, the number of corpora lutea was correlated (P < .05) with average daily gain (r = 0.15), age at 100 kg(r =-.17), breeding weight (r = 0.23) and days from 100 kg to breeding(r= 0.20). In two-breed cross gilts, the number of corpora lutea was correlated (P < .05) with birth weight (r = 0.25), weaning weight (r = 0.28), average daily gain (r = 0.20), age at 100 kg (r = -.20) and breeding weight (r = 0.46).

The size of the litter the gilt was born or weaned in, her birth weight, average daily gain, age at 100 kg, and backfat probe were not significantly correlated with the number of embryos she had 30-days postbreeding regardless of the type of breeding of the embryo. The correlation between the gilt's weaning weight and number of embryos was significant (P<.05) for gilts with three-breed cross embryos but not for gilts with purebred or two-breed cross embryos (r = 0.35, 0.02 and 0.11, respectively). Breeding age and days from 100 kg to breeding were correlated (P<.05) with the number of embryos for gilts with two-breed cross embryos (r = 0.17 and 0.15, respectively) but these correlations were not significant for gilts with purebred embryos (r = -.13 and -.05, respectively) or for gilts with three-breed cross embryos (r = -.05 and 0.14, respectively). The correlation between breeding weight and number of embryos was significant for gilts with two-breed cross and three-breed cross embryos (r = 0.15 and 0.41, respectively) but not for gilts with purebred embryos (r = -.03). Ovulation rate accounted for 13.7, 5.8 and 23.0% of the variation in the number of purebred, two-breed cross and three-breed cross embryos, respectively (P < .05).

Front Matter, Vol. 19 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.