Animal Sciences Commons^™

Amino Acid Supplementation Of Low Protein Layer Diets, Harlal Choudhury

Electronic Theses and Dissertations

Experiments were conducted at the South Dakota State University Poultry Research Center to study the effects of amino acid supplementation of low protein diets on performance of laying type hens. Hans, housed in 8-inch cages, were fed at 24 weeks of age typical 16% protein corn-soy diets diluted with glucose to 10.8% protein and supplemented with 0.15% DL-methionine, 0.19% L-lysine and 0.04% DL-tryptophan. After about 20 weeks of depletion, supplements of 0.05 and 0.1% DL-threonine and DL-valine and 0.1% DL-isoleucine alone and in all combinations were fed for a further period of 16 weeks using a factorial design. Individual supplements …

Sephadex G-25 And Charcoal Separation Of Mouse Growth Inhibitors In Soybeans From Trypsin Inhibitors, Larry James Tidemann

Electronic Theses and Dissertations

Rising costs have changes man’s ideals and eating habits. Plant ingredients, because of their relatively low costs, have been increasingly used as a substitute for animal proteins. If these plant ingredients could be directly utilized by man, this would be a more efficient use of energy and nutrients. One plant source currently used in such a manner is soybeans, which is a prime source of protein for human and livestock nutrition. However, soybeans contain several factors that are detrimental to man and livestock. Heating of soybeans counteracts these factors, since the undesirable factors are heat labile. However, heat alters the …

The Effect Of Level Of Dietary Protein On The Growth And Carcass Characteristics Of Growing-Finishing Swine Fed To A Heavy Weight, Keith E. Gilster

Electronic Theses and Dissertations

Two hundred sixteen crossbred barrows and 96 crossbred gilts were used in a series of three experiments to determine the effect of dietary protein level during three different growth periods on growth am quantitative and qualitative carcass traits of the growing-finishing pig. Pigs were fed from approximately 20 to 113 kilograms. Corn-soybean meal diets fortified with recommended levels of vitamins, minerals and an antibiotic were fed. Pigs fed 20, 18 or 16% protein diets from weights of 20 to 45 kg gained both significantly faster and more efficiently than pigs fed diets of 12% protein. Feeding a low (12%) protein …

The Effects Of Chlorpropamide In Diets Of Gravid Gilts On Embryo Survival, Fetal Weight And Fetal And Dam Blood Sugar Levels, Duane E. Wachholz

Electronic Theses and Dissertations

Seventy-six primiparous, crossbred gilts averaging approximately 125 to 135 kg were used in a series of two experiments to determine the effects of chlorpropamide upon reproductive and blood criteria. The drug, fed at the rate of 1000 ppm (1816 mg per day) and 3000 ppm (5448 mg per day), was included in a 14% protein basal diet from the day following breeding until gilts were sacrificed after 60 or 95 days of gestation. The 515 fetuses collected from these gilts were used to obtain information about the effects of chlorpropamide on individual weights and blood glucose and fructose levels. Data …

Mouth Brooding Behavior In The Substrate Spawning Cichlid, Tilapia Sparrmani, Hollie L. Collins

Journal of the Minnesota Academy of Science

Tilapia sparrmani has long been considered a substrate spawning fish but a considerable number of oral brooding tactics hove been observed. Two "experiments" where foreign species young were nurtured orally suggest rather strong oral brooding tendencies for this species.

Some Physiochemical Parameters And Phytoplankton Standing Crop In Four Northeast Arkansas Commercial Fish Ponds, Haldor Marvin Wilkes, John K. Beadles

Journal of the Arkansas Academy of Science

Physicochemical conditions and chlorophyll a standing crop were studied from July 1970 through June 1971 in four commercial catfish ponds at the Arkansas State University Experiment Farm near Walcott, Greene County, Arkansas. Determinations of dissolved oxygen, free carbon dioxide, total alkalinity, temperature, pH, transparency, and chlorophyll a standing crop were made at two-week intervals except during fish harvesting operations. One diurnal measurement of dissolved oxygen, free carbon dioxide, and temperature was conducted 25-26 June 1971. Increased oxygen concentrations coincided with increased chlorophyll α concentrations. Free carbon dioxide and chlorophyll α values varied inversely throughout the study. Diurnal concentrations of free …

Failure To Establish Feral Coturnix Quail Populations In Arkansas In The Late 1950'S, Douglas A. James

Journal of the Arkansas Academy of Science

Although Coturnix introductions failed in the late 1950's, it was learned in Arkansas that birds survived longest after autumn releases especially where fallow fields were numerous, that Coturnix favored grasslands whereas the bobwhite preferred shrublands, and that Coturnix occurred singly, pairing only in the breeding season.

Herpetofauna Of Sylamore Ranger District, Ozark National Forest, Arkansas: Preliminary Report, John P. Schuier, James W. Dickson, Michael J. Harvey

Journal of the Arkansas Academy of Science

A survey of the amphibians and reptiles of the Sylamore Ranger District, Ozark National Forest, Arkansas, was conducted from May 1969 through May 1972. The district is composed of 170,000 acres and includes parts of Stone, Baxter, Marion, and Searcy Counties. A total of 533 specimens was collected during the study. An additional 72 specimens in the collections of Memphis State University and Arkansas State University were examined. Forty-nine species were recorded from the study area. These consisted of 8 salamanders, 12 frogs and toads, 4 turtles, 6 lizards, and 19 snakes. Two species collected during the study, Scaphiopus holbrooki …

Checklist Of Spiders Collected In Mississippi Compared With Preliminary Study Of Arkansas Spiders, Peggy Rae Dorris

Journal of the Arkansas Academy of Science

This paper presents a comparative list of spiders collected in the 82 counties of Mississippi and in a random sampling of the spiders of Arkansas. The Mississippi list includes 26 families with 263 species, whereas the Arkansas collection includes 24 families with 206 species. Various methods of collecting were used in an effort to sample all populations and to contribute to knowledge of the taxonomy both Mississippi and Arkansas.

Kimberley Research Station Review Of Progress, 1968-71, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The potential for harnessing northern rivers flowing to the Gulf of Carpentaria and the Timor Sea was realised many years ago.

These rivers together are estimated to carry about three times the water transported annually over the Murray drainage system and the South Eastern slopes, which comprise the closely settled agricultural areas of South Eastern Australia.

The Kimberley Research Station was established in 1946 to investigate the potential for irrigated agriculture in the Ord River valley. This is a review of the Station's sixth progress report which is being published as Department of Agriculture Bulletin No. 3861.

Fumigation And Rabbit Control, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Fumigation has been a valuable tool in Australian rabbit control for over 70 years, because of its economy and efficiency compared with methods such as shooting and trapping.

Even now, while it is not as economical as 'one-shot' baiting, fumigation remains a valuable initial control effort because it is not affected by season and does not require shifting of stock.

Sheep Fertility In Western Australia, R J. Lightfoot

Journal of the Department of Agriculture, Western Australia, Series 4

Why do one-quarter of the ewes that are joined in W.A. fail to lamb? Sheep and Wool Adviser Dr. R. J. Lightfoot analyses the eight stages in sheep reproduction, explaining the causes and possible prevention of infertility at each stage.

Histological Study Of Liver On Channel Catfish, Ictalurus Punctatus, Leland F. Morgans

Journal of the Arkansas Academy of Science

Histologically the liver of the channel catfish, Ictalurus punctatus, was found to consist of many lobules. Though not surrounded by a connective tissue sheath as they are in some animals, the lobules were discernable because all the hepatic cells in a particular area radiated from a central vein. Portal triads were scattered throughout the liver. The lobule tissue consisted of radiating cords of cells alternating with sinusoids. Glycogen was condensed into large vacuoles within these cells. Pancreatic tissue was found in the liver, always surrounding a capillary or venule. Morphologically the pancreatic cells were exocrine. Functionally, however, they may be …

La Nueva Sección De Hidrobiología Del Museo De Zoología De Barcelona, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Review Of Check List Of The Helminth Parasites Of African Freshwater Fishes, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

In spite of the fact that freshwater covers about 74,000 square miles of Africa, surprisingly little work has been done on the helminth parasites of African fishes. This well written and documented book consists of excellent parasite/host and host/ parasite check lists followed by indices of parasites and countries. As the author stated, "It is hoped that this list, combined with the increasing recognition of the importance of fish as a source of protein and, therefore, of the significance of potential pathogens, will provide the necessary stimulus to research workers to rectify these gaps."

Proceedings Of The First National Bobwhite Quail Symposium (April 23-26, 1972 : Oklahoma State University, Stillwater, Oklahoma), John A. Morrison, James C. Lewis

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Panel Session I: Trends in Principal Management Themes

Bobwhite Quail on Shooting Preserves, Edward L. Kozicky

The Traditional Southern Bobwhite Quail Plantations, Leon Neel

Bobwhite Quail Management on State Controlled Wildlife Areas, Ralph J. Ellis

Trends In Management of the Bobwhite Quail on Commercially Owned Forest Land and National Forests of the Southern Region, Dale H. Arner

Panel Session II: Heretical Ideas about Bobwhite Ecology and Management

The One Quail Per Acre Myth, Forest E. Kellogg, Gary L. Doster, Edwin V. Komarek, Sr., and Ray Komarek

Second Broods in Bobwhite Quail, Jack A. Stanford

Changes of Covey Affiliation by Bobwhite …

Preliminary Observations On The Effects Of Treflan To Fishes, P. Bradley Latvaitis

Masters Theses

Treflan E.C. is a selective, preemergence, soil incorporated herbicide. Preliminary tests were made to evaluate its effects at concentrations of 0.75, 1.275 and 1.8 p.p.m. on twenty species of fresh water fishes in the laboratory. The herbicide was proven to be a powerful fish toxicant. Centrarchus, Cichlasoma centrarchus, was the most resistant fish tested, while Bluegill, Lepomis macrochirus, was among the least resistant. Treflan E.C. decomposes and degrades rapidly. It was also found to interact with plastics. Further studies are necessary to provide a complete investigation of the effects of Treflan on Fishes.

A Comparison Of Nocturnal Restlessness Of Caged Thrushes And Migration Of Free Thrushes, Charles Goodwin Kjos

Masters Theses

Nocturnal activity (Zugunruhe) of eight caged, radio-tagged thrushes (Hylocichla spp.) was compared by signal analysis with the occurrence of migration in 16 free, radio-tagged thrushes over a 37-night period during the autumn of 1970 in central Illinois. The study was conducted to determine the extent of synchrony of Zugunruhe and migration in these nocturnal migrants in fall. Zugunruhe frequently occurred on nights when there was no migration, but migration occurred only on nights when at least 50 per cent of the caged birds were active. Except for one departure which was atypical in several respects, migration occurred …

Operant Conditioning In The Garter Snake (Thamnophis), William A. Schmitz

Masters Theses

Ten garter snakes were tested for runway acquisition, correct turn response in a simple T-maze, or both, for food reinforcement. Seven of seven subjects met criterion for learning to run a 23 inch long alleyway. Mean latency times showed a general decrease over a 23 day period. Five of nine subjects met criterion for learning a correct turn response in a simple T-maze. Subjects mastering the task required from 14-157 trials. One of two subjects met criterion for learning the reverse response of the T-maze exercise, requiring 35 trials. Results are similar to those previously reported for reptiles and other …

Gastro-Intestinal And Abdominal Helminths Of White-Tailed Deer (Odocoileus Virginianus) In Southern Illinois, Thomas W. Cook

Masters Theses

In November and December 1971, forty deer from five southern Illinois counties were examined by necropsy for gastro-intestinal and abdominal helminths. Eight species of gastro-intestinal nematodes were found: Gongylonema pulchrum, Spiculopteroides odocoilei, Ostertagia mossi, Haemonchus contortus, Cooperia sp., Capillaria sp., Trichuris ovis and Oesophagostomum venulosum. Setaria yehi, a filiariad nematode, was found in the abdominal cavity. Moniezia benedeni was the only cestode found. No trematodes were recovered.

A Study Of Thoracic Skeletomusculature In Peracarida (Crustacea), Donna R. Gill

Masters Theses

Two species of peracarid malacostracans, a mysid, Neomysis americana, and an oniscid isopod, Trachelipus cf. rathkei, were used to study the skeletomusculature system. Serial sections, whole mounts, and gross dissections were made. Coxal promotors and remotors and basal adductors and abductors were the muscle groups examined.

The promotor and remotor muscles of N. americana were found to be numerous, well developed, taking origin primarily from the dorsal thoracic wall, and extending nearly ventrally to insert in the coxa; the adductor muscle and two abductor muscles are weakly developed. The coxa in T. cf. rathkei is incorporated completely …

Gastro-Intestinal Helminths Of Illinois Bobwhites, Michael Eugene Gordon

Masters Theses

The viscera of 103 bobwhite quail (Colinus virginianus), from east central Illinois counties, were collected during November and December of 1971 and examined for helminth parasites. Two nematodes were identified: Dispharynx nasuta (9.7%) and Ascaridia sp. (7.8%). The rate of infection varied significantly between counties but there was no difference in parasitism of males and females.

Home Range And Movement Of Fox Squirrels In East Central Illinois, Michael D. Sliva

Masters Theses

Home ranges and movements were determined for 11 fox squirrels (Sciurus niger) and analyzed with respect to the distribution of mast trees and den trees on a 12¼ acre wooded plot in east central Illinois. Average home range size for all squirrels was 0.9 acres. The home range of adult squirrels averaged 1.5 acres while juveniles averaged 0.8 acres. Females had larger home ranges (1.4 acres) than males (0.6 acres). The average distance moved within the home range was 360 feet for all squirrels. The average distances moved by adults and juveniles was nearly the same (275-280 feet), …

A Multivariate Analysis Of Systematic Relationships Among Populations Of The Short-Tailed Shrew (Genus Blarina) In Nebraska, Hugh H. Genoways, Jerry R. Choate

University of Nebraska State Museum: Mammalogy Papers

The genus Blarina (Mammalia: Soricidae) is represented in Nebraska by two well-differentiated, geographically exclusive phena that generally have been regarded as subspecies. Field studies conducted along their zone of contact resulted in the collection of representatives of both phena at each of five localities. Cluster analysis of distance matrix readily separated reference samples of the phena as well as test samples from near the zone of contact. A three-dimensional projection of the specimens onto their first three principal components, together with a discriminant function analysis, served further to elucidate the degree of differentiation among the phena and to confirm that …

On Models Of Commercial Fishing: The Traditional Literature Needs No Defenders, Vernon L. Smith

Economics Faculty Articles and Research

Examines the models of commercial fishing. Representation of the variable K as a measure of crowding externality in the cost function; Change of the degree of fishing pressure without changing the variable K; Modification of the output of firms by varying the inputs.

A Taxonomic Study Of Two Nominal Subspecies Of Pikas (Ochotona Princeps) In The Cascade Mountains Of Oregon, Richard M. Coots

Dissertations and Theses

Pikas from four colonies in the Cascade Mountains of Oregon were examined. Two colonies were chosen from within the geographical distribution of two nominal subspecies. A discriminate analysis of morphological measurements taken from the specimens showed that each colony could be distinguished from each other. Each colony studied showed more intra-colony similarity than inter-colony similarity regardless of distance separating the colonies or subspecies designations. The results indicate that the validity of subspecies designations for this species can be questioned.

Early Birder Christmas Tally Has Less Individual Fowls, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Pigeon Flock Explodes Into Sky With Bullet Drive Of Golden Eagle, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Marine Resource Information Bulletin, Vol. 3, No. 19, Virginia Sea Grant, Virginia Institute Of Marine Science

Books

• Abundance of blue crabs expected
• Oyster meats quality index November 1971

Experts Help Pen Master List For Building Ornithological Library, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.