Life Sciences Commons^™

Front Matter, Vol. 1

Great Basin Naturalist Memoirs

No abstract provided.

End Matter, Vol. 1

Great Basin Naturalist Memoirs

No abstract provided.

A Taxonomic And Ecologic Study Of The Riverbottom Forest On St. Mary River, Lee Creek, And Belly River In Southwestern Alberta, Canada, Robert K. Shaw

Great Basin Naturalist

The riverbottom forest community of St. Mary River, Lee Creek, and Belly River in southwestern Alberta, Canada, is a unique ecological entity characterized by poplar species having their major Alberta distribution along these streams. Stands in the community are dominated by three tree species, six shrub species, and nine herb species. Establishment of the community is dependent on climate and substrate; destruction is the result of progressive lateral stream-flow erosion. Soils are sandy loams above gravel, with pH values of 7.7 to 8.0 and soluble salt concentrations of 176 to 458 parts per million. Trees in mature stands averaged 23.0 …

The Streblid Batflies Of Venezuela (Diptera: Streblidae), Rupert L. Wenzel

Brigham Young University Science Bulletin, Biological Series

This study was based on more than 36,000 Venezuelan Streblidae representing ca. 115 species and species complexes in 22 genera, taken from more than 6,800 hats of 95 species. Two new genera are proposed and 45 new species are described. The morphology is briefly discussed and terminology is revised. Collection data are given for each species, together with discussions on variability and host relationships when pertinent. Keys to genera and species arc included, as well as illustrations of most species. Noctiliostrebla dubia (Rudow) and the male of Parastrebla handleyi Wenzel are characterized, and relationships of Speiseria are discussed. New Taxa– …

Front Matter, Vol. 20 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 20 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Characteristics And Behavior Of Guineafowl And Domesticated Chicken Hybrids, Earl L. Hanebrink

Journal of the Arkansas Academy of Science

The description, behavior, and morphologic measurements are presented for two hybrid crosses of domesticated chicken and guineafowl. The ease at which gallinaceous birds hybridize might warrant a closer look at the classification system. Possibly the number of families in the superfamily Phasianoidea should be reduced as some other researchers suggest.

Protecting Agriculture In 1976 : Three Sides Of An Apb Campaign, Department Of Agriculture, Western Australia

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

A quick look at three areas in which the A.P.B. are working with landholders to protect Western Australia from invasion.

Protecting our agriculture and wildlife is not only the APB's job— it is very much the community's job also. Any suspect birds or plants must be reported immediately to the Agriculture Protection Board.

Emus On The Move : 1976, Michael T. Sexton

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

The greatest migration of emus in recent times came out of the ZMurchison and Gascoyne pastoral areas during the winter of 1976. The emus were driven south-westerly by an instinctive search for food.

The Agriculture Protection Board's barrier fences stoped the wave of emus on the fringes of the wheatbelt, causing a congregation estimated in mid June to total 50,000 birds.

This article reviews the reason behind the emu migration and the policies employed to deal with such a situation.

Chlorofluorocarbon Effects On Cardiac, Pulmonary, And Respiratory Patients, Mildred E. Olson

Journal of the Minnesota Academy of Science

Research results from studies of the physiological effects of aerosal propellants on animals and people are summarized. The papers selected for this summary were published between 1968 and 1975. Effects of the 15 chlorofluorocarbons used as propellants have been recorded on the cardiac, pulmonary and respiratory functions of a number of animal species as well as man. The fifteen propellants have been classified into four groups on the basis of their degree of toxicity. Fluorocarbon 11, the most frequently used propellant, is in group 1, the most toxic. The relative toxicity of each of the 14 other propellants compared with …

Inducing Puberty In Beef Heifers With Hormones, R. Debenedetti, G.H. Kiracofe, V. Hultine, R.M. Mckee, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Twenty-six Polled Hereford and Simmental-cross heifers that had not cycled by the beginning of the breeding season were given an ear implant and injected with an estrogen-progestogen compound. The implant was removed after 9 days and all heifers were in estrus 1 to 5 days later. Six heifers conceived the first insemination, 11 the second, and 24 during the 65-day breeding season.

Synchronizing Estrus In Beef Heifers With Prostaglandin And Syncromate B, R.C. Debenedetti, G.H. Kiracofe, V. Hultine, R.M. Mckee, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Forty-five of 50 heifers were in estrus 1 to 5 days after 7-day synchronization implants were removed. Prostaglandin was injected one day before implants were removed. Thirty-one of the 45 (68.9%) heifers conceived to first artificial insemination service.

Inheritance Of Some Reproductive Traits By Young Bulls, J.H. Warren, J. Blum, R.R. Schalles, G. Kiracofe, K. Henry, V. Hultine

Kansas Agricultural Experiment Station Research Reports

Severa1 reproductive traits of yearling Polled Hereford bulls were evaluated during and immediately after a 140-day feeding test. Results indicate that concentration of sperm and percentages of live sperm are heritable and genetically independent of each other. Heritability was low for sex drive or libido.

Feeding Propionic Acid-Treated, Flaked Sorghum To Finishing Steers, Terry L. Gugle, G. Fink, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Fifty-four yearling Hereford steers averaging 805 pounds were used in an 86-day finishing trial to determine the effect of adding low levels of propionic acid to steam flaked sorghum grain. Three treatments were examined. Treatment one consisted of sorghum grain steam flaked twice weekly for a maximum of 4 days between flaking. Treatment two was the same as treatment 1 except that propionic acid was added into the discharge auger at 0.15% of the weight of the flakes. Treatment three was flaking once a week with propionic acid added at 0.25% of the weight of the flakes. Both acid levels …

Factors Influencing Net Income From A Steer Through Feedlot, J.K. Blum, R.R. Schalles, K.O. Zoellner

Kansas Agricultural Experiment Station Research Reports

Steers entering feedlots with higher starting weight per day of age had greater net value a t slaughter than lighter steers. Faster gaining steers brought the highest net income. Age on feed did not influence net income. High dressing percentage increased the net income but generally the relationship was low between carcass traits and net income.

Methods Of Improving Quality Of Grass-Fed Beef, Melvin C. Hunt, Donald H. Kropf, V. Chen, A. Harrison, O. Corte, C. Kuntapanit, M.E. Smith, J. Thomas, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Ten steers of known background, approximately 18 months old, and wintered on alfalfa and protein were finished on a brome and bluestem grazing program. Carcass characteristics were measured. The influence of conditioning carcass halves at 55 F until eight hours post-mortem was compared with conventional chilling at 36 F. Finally, the effects of vacuum storage and display on beef quality were evaluated.

Milo Stover And Forage Sorghum Silages For Growing Heifers, K. Bolsen, L. Corah, C. Grimes, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Ninety-six heifer calves were used to compare four silage combinations: (1) 100% milo stover, (2) 67% milo stover and 33% forage sorghum, (3) 33% milo stover and 67% forage sorghum and (4) 100% forage sorghum. Each ration was fed to four pens of six heifers each during the 88-day trial. Heifers fed 100% forage sorghum made the fastest and most efficient gains(P<.05); those fed 100% milo stover, the slowest and least efficient gains (P<.05). Based on gains obtained from these two rations, the 67% milo stover silage ration produced 16% faster gain than predicted; the 33% milo stover ration, a 5% faster gain than predicted.

Comparison Of Feed Consumption Of Pigs In Two Lines (1976), J D. Wheat, Donald H. Kropf, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Pigs in the control line ate more, grew faster, and were less efficient than those in the select line.; Swine Day, Manhattan, KS, November 11, 1976

Efficacy Of Feeding Finishing-Pigs To Heavier Weights On Two Protein Sequences (1976), B A. Koch, G L. Allee, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Eighty-four pigs averaging 75 lbs. were used to evaluate feeding finishing hogs to 230, 260, or 290 lbs. on two protein regimes. Rate of gain declined after the pigs reached 200 lbs. regardless of protein level, which resulted in an increase of approximately 20 to 25 days required for each pen of pigs to average 30 lbs. of gain. Feed costs increased with the increased pounds of feed required per pound of gain for the heavier weights. Pigs fed the lower protein level from 200 lbs. to final weight required more feed per pound of gain, yielded carcasses with slightly …

Trace Mineral Levels During Gestation Of Sows In Confinement-Effects On Immunoglobin Performance And Health Of Neonatal Pigs (1976), D A. Schoneweis, G L. Allee

Kansas Agricultural Experiment Station Research Reports

We compared the effects of two levels of trace minerals fed dams during gestation on the hemoglobin, packed cell volume, performance, and health of 31 litters of neonatal pigs. The dams had been on concrete all of their lives. There were no significant differences in the hemoglobin or packed cell volume in pigs due to trace mineral levels fed the dam during gestation. There were no apparent differences in the incidence of neonatal disease or other problems in any of the pigs. These results indicate no benefit from adding excess trace minerals to the ration of sows during gestation, even …

Macrobenthos Population Changes In Crystal Lake, Arkansas, Subsequent To Cage Culture Fish, James C. Adams, Raj V. Kilambi, William A. Wickizer, Arthur V. Brown

Journal of the Arkansas Academy of Science

A three-year study was conducted to determine the possible effects of cage culture of fish on the environment of Crystal Lake, Arkansas. The investigation consisted of three periods: pre- (November 1971-October 1972), during- (November 1972-October 1973), and post- (November 1973-October 1974) cage culture. Numbers and biomass of benthos per square meter for pre-, during-, and post-culture periods were 1353 (10.0g), 730 (8.8g), and 1028 (4.1g), respectively. Numerically, Chaoborus sp., Chironomidae, and Oligochaeta comprised more than 97%. Chaoborus was the most numerous organism before fish culture (>68%), but dominance shifted to the Oligochaeta (>58%) after culture.

Continuation Of Mourning Dove Studies In Clark County, Arkansas, With Emphasis On Cyclical Behavioral Patterns, Thurman Booth, Fred L. Burnside Jr., Jan Burnside, Peggy Rae Dorris

Journal of the Arkansas Academy of Science

In conjunction with the U.S. Department of Interior, Fish and Wildlife Service, the Henderson State University Biology Department has continued a study of mourning doves in Clark County, Arkansas, with emphasis on cyclical behavioral patterns. Three hundred forty-three mourning doves were baited, trapped, and banded to obtain information concerning age, sex, populations, retraps, abnormalities, migrations, trap injuries, cyclical behavioral patterns, and other factors.

Fishes Of The Cane Creek Watershed In Southeast Missouri And Northeast Arkansas, Bruce E. Yeager, John K. Beadles

Journal of the Arkansas Academy of Science

A survey of the fishes of Cane Creek in southeast Missouri and northeast Arkansas was made between 25 August 1974 and 16 July 1975. Field collections, literature records, fisherman reports, and museum specimens showed the fishes of Cane Creek to be composed of 90 species distributed among 20 families. Records of Lampetra aepyptera (Abbott), Hiodon alosoides (Rafinesque), Etheostoma histrio Jordan and Gilbert, and Percina uranidea (Jordan and Gilbert) were either the first records of these species in this stream or reaffirmed their presence. The fish collected were common to the Ozark, Ozark lowland, lowland, and wide-ranging faunal groups of Pflieger …

Distributional Records Of Amphibians And Reptiles From Coastal Plain Of Arkansas, Edmond J. Bacon Jr., Zane M. Anderson

Journal of the Arkansas Academy of Science

Distribution of amphibians and reptiles in the West Gulf Coastal Plain and Mississippi Alluvial Plain is not well known because extensive collecting has not been done in these areas and data in museums have not been published. New distributional records for three salamanders (Desmognathus fuscus brimleyorum, Manculus quadridigitarus, Plethodon glutinosus glutinosus) , two anurans (Rana areolata circulosa, Scaphiopus holbrooki holbrooki), and one snake (Lampropeltis doliata amaura) are presented. Additional collecting will be necessary to determine the exact range and status of the secretive species.

Fishes Of The Fourche River In Northcentral Arkansas, Steve M. Bounds, John K. Beadles

Journal of the Arkansas Academy of Science

A survey of the fishes of Fourche River in northcentral Arkansas was made between June 1974 and March 1976. Field collections and literature records revealed that the river system was inhabited by 94 species of fish representing 21 families. The collected fishes represent both the Ozark and the lowland faunal groups. Fourteen species of Etheostoma and four species of Percina were collected. The records of Etheostoma asprigene and Elassoma zonatum represent extensions of the previously known ranges of these species within the state. Noturus gyrinus and Etheostoma histrio were recorded from the Black River system in Arkansas for the first …

Scanning Electron Microscopy Of The Rainbow Trout (Salmo Gairdneri Richardson) Spermatozoon, James H. Fribourgh, Bernard L. Soloff

Journal of the Arkansas Academy of Science

The scanning electron microscope was used to determine the morphology of the rainbow trout (Salmo gairdneri Richardson) spermatozoon. The spermatozoon is approximately 32 μm long and consists of a head, mitochondrial collar, and flagellum. The head is elongated and somewhat flattened. It has an antero posterior length of 3.1 μm and a maximum diameter of 1.6 to 2.2 μm. Mean antero-posterior length of the mitochondrial collar is 0.8 μm The collar encircles the flagellum but is separated from it. The flagellum ranges in length from 26 to31 μm and is divided into a principal piece and end piece. Cytoplasmic vesicles …

Cave Fauna Of Arkansas: Selected Invertebrate Taxa, V. Rick Mcdaniel, Kenneth L. Smith

Journal of the Arkansas Academy of Science

This report is the first in a series of reports describing the fauna of Arkansas caves. Included are notes accumulated during the past four years on nematomorphs, amphipods, isopods, diplopods, decapods, and a variety of insect taxa. In addition to indicated records of distribution, the ecological status of each species (as a cavernicole) is described as troglobitic, troglophilic, trogloxenic, or accidental. Several of the included species are reported for the first time from Arkansas.

Hormone Receptor Site Maturation In The Secondary Sex Organs Of Immature Male And Female Rats, K. J. Thomas

Journal of the Arkansas Academy of Science

The effect of a combined dose of pregnant mares' serum (PAAS) and human chor ionic gonadotropin (HCG) on male and female rats 2-25 days old was studied. Groups of animals were given injections for three days, then sacrificed on the fourth day. All injections were begun on the 2nd, 7th, 12th, 17th, and 22nd day of life. Ovaries, uteri, seminal vesicles (SV), and ventral prostate (VP) were removed, dissected free of fat, and weighed. Because uterine weight increased earlier than either SV or VP weight, the ability of the uterus to respond to exogenous estradiol and of the SV and …

Dietary Responses To Processed And Non-Processed Peanuts And Grains By Growing-Finishing Pigs (1976), T F. Balogun, B A. Koch

Kansas Agricultural Experiment Station Research Reports

Twenty-four crossbred barrows and gilts averaging 92 lbs. were used to evaluate whole shelled peanut as a protein and energy source for pigs. Pigs used whole peanuts and corn less efficiently than ground peanuts and corn. Feed intake and average daily gain were greatly improved when peanuts and corn were fed in ground form. Roasting peanuts for one hour at 120 C improved performance only slightly over raw peanuts. Pigs fed a soybean meal diet had slightly better average daily gain than those fed a lysine-supplemented peanut meal diet.; Swine Day, Manhattan, KS, November 11, 1976

Response Of Yearling Steers On Bluestem Pasture To Ralgro, Synovex S And Stilbestrol Implants, E.F. Smith, Jack G. Riley, Don Boggs

Kansas Agricultural Experiment Station Research Reports

One hundred seventy-five Hereford, Hereford-Angus cross and Angus steers, averaging 553 lbs., were distributed as equally as possible by breed among four pastures. The pasture season was May 2 to October 5, 1975 (152 days). A third of the steers in each pasture were implanted with one of the three following materials: Ralgro, Synovex S, Stilbestrol (30 mg.). There was no significant difference in gains by the groups. Previous research has shown that Stilbestrol implants increase weight gains of steers on bluestem pasture 10 to 15 percent.