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Pine Sawdust As A Roughage Replacement In Feeder Cattle Diets, A. L. Slyter, L. D. Kamstra

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

Eight lots, five or six heifers each, (42 heifers total) were fed one of four diets for 119 days to study the effect of sawdust inclusion in a growing diet on the performance of feeder calves. The diets were alfalfa-concentrate, sawdust-concentrate, corn silage and sawdust silage. (See table 1 for specific diet composition). Trace mineral salt and dicalcium phosphate were fed free choice and vitamin A was supplemented to provide a calculated 10,000 to 12,000 I.U. per head per day. Brome-alfalfa loose hay was provided for the first week during adaptation to the experimental diets.

Dry And High-Moisture Grain Fed Whole Or Rolled With Hay Or Haylage In Cattle Finishing Diets, J. D. Burkhardt, L. B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

In a previous experiment (A.S. Series 70-20 ) , steers were fed dry or reconstituted high-moisture corn grain , whole or rolled , at 1 lb . per 100 lb . of body weight with alfalfa-brome hay or reconstituted haylage to appetite from weights of about 500 to 825 lb . Higher rates of gain with lower feed requirements were obtained with high-moisture corn and haylage than from dry corn and hay. The greatest benefits from the moist feeds resulted when high-moisture corn and haylage were fed together. There appeared to be a slight advantage for rolling the corn under …

Weaning Age And Management Systems For Fall Born Beef Calves, William Mccone

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

Twenty-eight registered Angus and Hereford cows calved in September, 1970. The cows calved on pasture and remained on pasture until late November. From November 10 to December 28 the cows were bred for 1971 and started on a self-fed diet. The remaining 14, or one-half of the calves, were allowed to continue nursing the cows, but the calves also had access to calf creep with the same diet used for the weaned calves. At the start of the experiment the calves were randomly divided by sex, breed and age. At this time, December 30, 1970, the average age of all …

Urea Vs. Soybean Meal During Feedlot Adaptation And Later Growing And Finishing, J. D. Burkhardt

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

Urea is a common ingredient in cattle diets. While this nonprotein nitrogren compound is a satisfactory source of supplemental protein in many cattle diets, there are limitations as to levels in the diet and conditions of use. The primary basis for the use of urea as a substitute for conventional high-protein ingredients is the lower cost for protein supplementation.

Dry And High-Moisture Corn Fed Whole Or Rolled With Corn Silage In Cattle Growing-Finishing Diets, J. D. Burkhardt, L. B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

One area of research in beef cattle feeding that is receiving major emphasis at this station is the comparative value of dry and high-moisture grain under various conditions of use and the benefits of processing in comparison to feeding as whole grain. Previous research has involved levels of roughage and moisture content of the roughage (hay or haylage).
In this experiment, dry or high-moisture corn grain was fed whole and rolled with a limited feed of corn silage with urea or soybean meal furnishing the supplemental protein.

Feedlot Bulls And Steers Treated With Diethylstilbestrol And Zeranol, P. J. Thiex

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

This experiment is one of a series to study effects of castration, growth stimulating compounds and various feeding and management systems on performance and carcass characteristics of feedlot male and female cattle. It involved a comparison of bulls with steers and their response to diethylstilbestrol or zeranol (a resorcyclic acid lactone compound shown to have growth stimulating properties) implants when fed high-concentrate diets.

Types Of Urea Supplement For Wintering Beef Calves, A. L. Slyter, L. B. Embry, J. Herndon

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

Previous research at the Cottonwood Station showed that calves fed low levels of urea during an adaptation period made faster gains than unadapted calves when fed higher levels of urea during the wintering period. Calves fed a corn-base urea supplement in pellet form gained faster than those fed a commercial, molasses-base urea supplement in liquid form. The following tow experiments were conducted as replications of those reported previously under this title.

Sulfur Supplementation With Urea As The Supplemental Protein With Corn Silage Or Ear Corn Diets For Beef Steers, L. B. Embry, R. M. Luther, J. F. Fredrikson

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

This experiment was conducted to determined the need for a sulfur supplement with urea used as the primary supplemental protein in corn silage or ear corn diets for growing and finishing steers. Supplements which contained one part of sulfur to 10 or 20 parts nitrogen from the urea were compared to a urea supplement without added sulfur and to a low-protein corn supplement fed at the same level. The experiment consisted of a corn silage feeding phase of about 4 months and a ground ear corn phase of about 6 months.

Dry And High-Moisture Corn As Affected By Processing And Type Of Diet, L. B. Embry, J. D. Burkhardt

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

High-moisture grains have received considerable emphasis in cattle feeding research and by feedlot operators during recent years. Large quantities of grain are harvested at high-moisture contents because of harvesting and other advantages associated with the high-moisture content or because of unfavorable natural drying conditions. Drying grain is expensive, and it would appear that first consideration should be given to storing and using the grain in the high-moisture form if it is to be fed livestock.

Storing High Moisture Grain, James J. O'Connell

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

For the past several years there has been increased interest in the harvesting and storing of high-moisture feed grains, particularly corn, barley and grain sorghum. With improved silos and grain harvesting equipment, the use of high-moisture grains has replaced the conventional methods of harvesting, storing and feeding grains on many cattle feeding farms. There are several reasons why this system is becoming more popular. Harvesting can be done earlier and faster, harvesting losses are reduced, and a minimum number of operations and amount of equipment are required. Storage costs are comparatively low and in most cases storage is rodent free. …

Dark Cutting Beef - Why?, W. J. Costello

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

Many producers have heard of the carcass that did not grade because it "cut dark". What is dark cutting beef and why does it happen?

Drought-Damaged Corn Silage For Growing Beef Calves, Richard M. Luther, Jacob Fredrikson

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971

One hundred thirty-six steer calves averaging 440 lb. were used in a 56-day trial to study the value of supplementing drought-damaged corn silage with protein and energy. The silage contained only about 8 bushels of grain per acre and was harvested in mid-August at 30% dry matter. It was stored in a 71-ton stack, covered with a plastic cover and sealed with earth around the bottom. The stack was opened with a plastic cover and sealed with earth around the bottom. The nitrogen (dry basis) were 11.7 and 0.24 at ensiling. The four treatments (34 steers each) were 1 or …

Modern Structures Add Danger In Migration On Fowl Flyways, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Wildlife Sanctuary Visit Recalls Trials Of African Queen Film, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Motley Appearance Noticeable If Molting Fowl Seen In Flocks, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

The Constant Estrus Rat As A Source Of Viable Ova, John C. Drake

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 John C. Drake, Jr. on September 10, 1971.

Mimic Mockingbird In Large Bird Family, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

End Matter, Vol. 14 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 14 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 14 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Flora From The Dakota Sandstone Formation (Cenomanian) Near Westwater, Grand County, Utah, Samuel R. Rushforth

Brigham Young University Science Bulletin, Biological Series

A Cretaceous (Cenomanian) flora from the Dakota Sandstone Formation near Westwater, Grand County, Utah contains an admixture of ferns and angiosperms. The ferns of this flora are representative of an older Jurassic-Wealden vegetational type, whereas the angiosperms are typical of the modern vegetational type. Species of Gleichenia and Matonidium and Astralopteris coloradica represent the dominant forms in this flora.

The Westwater flora contains fourteen genera including nineteen species and one variety. New species described from this flora include Asplenium dakotensis, Coniopteris westwaterensis and Ilex serrata.

Whole Issue Nebraska Bird Review (September 1971) 39(3)

Nebraska Bird Review

TABLE OF CONTENTS

Status of the Common Loon in Nebraska: A Summer Occurrence in Lancaster County................. 42

1971 (Forty-sixth Spring Migration and Occurrence Report................. 45

Some Interesting Summer Bird Records for Lancaster County in 1970 .................58

Activities of the Yellow-bellied Sapsucker in the Kearney, Nebraska Area .................60

Notes................. 62

In Memoriam .................64

Botanical And Physiographic Reconnaissance Of Northern British Columbia, Stanley L. Welsh, J. Keith Rigby

Brigham Young University Science Bulletin, Biological Series

The area of study is located in northern central British Columbia and includes the Sustut Basin and surrounding mountains. The physiography and geology of the region is described and the plant communities are enumerated. An annotated list of 205 species, 11 subspecies, and 35 varieties collected during the summer of 1969 is included.

Coexistence In Unisexual-Bisexual Species Complexes Of Poeciliopsis (Pisces: Poeciliidae), William S. Moore, Frances E. Mckay

Biological Sciences Faculty Research Publications

All-female forms of Poeciliopsis rely on males of closely related bisexual species for sperm. The natural habitat of Poeciliopsis in Sonora, Mexico, consists of a variety of small ponds connected by intermittent watercourses. Optimal areas, containing mixed female aggregates, are defended by territorial males. Social structure in natural populations very closely resembles that of laboratory experiments, wherein subordinant males show reduced mate discrimination and inseminate unisexuals.

An equation relating male density to unisexual inseminations is used in a computer simulation model of a population. A stable equilibrium is inherent in unisexual-bisexual species complexes but the level of equilibrium is affected …

Front Matter, Vol. 14 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Shorebirds Among Exceptions For Fall Migration Schedule, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Fowl May Be On Losing End Of Plan To Wipe Out Wild Pot, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Avian Fan In Thoreau S Camp On Rating Of Hawks, Thrushes, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Marine Resource Information Bulletin Vol. 3, No. 14, Virginia Sea Grant, Virginia Institute Of Marine Science

Books

• Weekly oyster spatfall on shellstrings July-August 1971
• Certified crab meat plants in Virginia

Wanderlust Carries Spoonbills Far North Of Breeding Ranges, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.