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Progress Report For The Dairy Research Advisory Board, Various Authors

Other Documents

No abstract provided.

1986 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extention Service, South Dakota State University

South Dakota Beef Report, 1986

We are pleased to present this, our first annual SDSU BEEF REPORT. It is a compilation of research reports and applied information relating especially to the beef cattle industry. The papers included in this report have been prepared by SDSU research and extension scientists, not only in the Department of Animal and Range Sciences, but also in Chemistry, Economics, Dairy Science, Plant Science and Veterinary Science. Since some of the projects from which results are reported are still in progress, the preliminary nature of the results should be recognized. For the reader's convenience, the articles included are grouped by specific …

Seventh Biennial Cheese Industry Conference, Various Authors

Cheese Industry Conference

No abstract provided.

Population Decline Of The Endangered Indiana Bat, Myotis Sodalis, In Arkansas, Michael J. Harvey, V. Rick Mcdaniel

Journal of the Arkansas Academy of Science

No abstract provided.

Concanavalin A-Nonbinding Enzymes Of Crotalus Scutulatus Scutulatus Venom, C. K. Childs, Michael W. Hinson, Dewey H. Sifford, Bob D. Johnson

Journal of the Arkansas Academy of Science

Crotalus scutulatus scutulatus crude venom was separated into two fractions by Concanavalin A Sepharose 4B affinity chromatography. The Concanavalin A-nonbinding fraction (F-l) exhibited phosphomonoesterase (orthophosphoric monoester phosphohydrolase EC 3.1 .3.2), phosphodiesterase, 5 '-nucleotidase (5 '-ribonucleotide phosphohydrolase EC 3.1.3.5), phospholipase A (phosphatidate 2-acylhydrolase EC 3.1.1.4), hyaluronidase (hyaluronate glycanohydrolase EC 3.2.1.d), N-benzoyl-Larginine ethyl esterase, p-toluenesulfonyl-L-arginine methyl esterase, L-amino acid oxidase (L-amino acid: O2 oxidoreductase [deaminating] EC 1.4.3.2), and caseinolytic activities. Thrombin-like and NAD nucleosidase (5 '-ribonudeotide phosphohydrolase EC 3.1.3.5) activities were not observed. DEAE Sephadex A-50 ion exchange chromatography by two stage elution of F-l yielded several fractions having proteinase activities. Proteinase …

Age And Growth Of Redear Sunfish Lepomis Microlophus (Gunthur), From Bob Kidd Lake, Rex R. Roberg, Thoniot T. Prabhakaran, Raj V. Kilambi

Journal of the Arkansas Academy of Science

Total lengths (62-285mm) and body scales from 75 redear sunfish collected by electroshocking from Bob Kidd Lake during October and November 1985 were used for this study. The length-frequency distribution yielded five age groups, however, the body scale analysis revealed eight age groups. The total length scale radius relationship was estimated as, TL = 17.98 + 0.92 Sr . Lengths attained at earlier ages were estimated by the Fraser-Lee method and the Bertlanffy growth model was fitted to the lengths for ages five through ten, and the resulting equation, L₁ = 295 [1 - exp — 0.29 (t - 1.83)], …

River Otter In Arkansas. Iv. Winter Food Habits In Eastern Arkansas, C. Renn Tumlison, Anthony W. King, V. Rick Mcdaniel

Journal of the Arkansas Academy of Science

Stomachs and intestines of 89 river otters (Lutra canadensis) collected in eastern Arkansas during the trapping seasons (December- January) of 1978-1983 were examined for food remains. Fish (primarily centrarchids, catostomids, and clupeids) dominated the diet (71.2%). The next most abundant prey was crayfish (18.3% of the diet). Other foods included gray squirrel (Sciurus carolinensis), wood duck (Aixsponsa), snakes (Thamnophis proximus), frogs (Ranidae and Hylidae), and beetles (Coleoptera).

Harvest Trends Of The Bobcat (Felix Rufus) In Arkansas, C. Renn Tumlison, V. Rick Mcdaniel

Journal of the Arkansas Academy of Science

Arkansas bobcat fur harvest records were examined in relation to forest cover, furbuyer distribution, and price. Availability of forest cover correlated with areas of greatest harvest, and a dynamic forest products industry in southern Arkansas is believed to support a greater density, and therefore greater harvest, of bobcats. Comparison of furbuyer distribution with harvest level among physiographic regions suggested that the fur industry in southern Arkansas could expand. Prices increased dramatically in the 1970's, and 94.5% of the variation in harvest level could be explained by price.

Hunting And The Evolution Of Human Intelligence: An Alternative View, Maxine Sheets-Johnstone

Intelligence Collection

No abstract provided.

Proceedings -- National Wilderness Research Conference: Current Research, United States Department Of Agriculture, Forest Service

Forestry

Includes more than 70 reports of current wilderness research. Papers are organized around nine topics: wilderness resource research, including natural fire, air quality, impacts to soil and vegetation, fish and wildlife, and water; and wilderness user research related to recreational use and user characteristics, attitudes and behavior, benefits, and management concepts and tools.

Effects Of Adding Fat To The Sow Lactation Diet On Lactation And Rebreeding Performance, G. C. Shurson, M. G. Hogberg, N. Defever, S. V. Radecki, E. R. Miller, Win Butler

Department of Animal Science: Faculty Publications

One-hundred-three multiparous sows were randomly assigned to one of two lactation diets containing either no supplemental animal fat (C) or 10% added fat (F) during two seasons, summer (S) and winter (W), in a 2 X 2 factorial arrangement of treatments. Sows were placed on their respective dietary treatments 1 wk prior to farrowing and were fed these diets ad libitum throughout the 28-d lactation period. Weekly feed intake and total feed intake were not affected by diet or season, while weekly metabolizable energy (ME) intake tended to be higher during wk 1 and 3, and was higher (P<.04) during wk 2 for sows fed diet F. Sow weight loss from farrowing to 21 d of lactation and to weaning (28 d) were unaffected by diet or season. Average pig birth weight was .15 kg higher (P<.O1) for pigs born during S compared with those born in W. Sows receiving diet F had heavier litters at 21 d (P<.01) and heavier average pig 21-d weights (P<.O1). This was primarily due to the 13.1% increase (P<.04) in estimated milk yield and the higher fat concentration (P<.O01) of milk consumed by the pigs nursing sows fed diet F. Interval between weaning and re-breeding was shortened by 5.9 d (P<.01) for sows during W than during S, and tended to be lower for sows fed diet F (7.3 d) compared with that of sows fed diet C (9.7 d). Farrowing percentage was unaffected by diet but tended to be increased during W (78.9%) compared with S (65.1%). No differences between mason or diet were noted on number of pigs born or number of pigs born alive in the subsequent parity. No diet • season interactions were observed, except for crude protein concentration of sow's milk, which was higher in milk from sows fed diet C during season W (P<.04).

Phomopsis-Resistanct Lupins : Breakthrough Towards The Control Of Lupinosis, W A. Cowling, J. G. Allen, P Mcr. Wood, J. Hamblin

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

Attemots to control lupinosis in sheep have been thwarted by the unpredictable occurence of the disease in the field. The complex interaction of the toxin-producing fungus (Phomopsis leptostromiformis) with its host (the lupin plant), together with variable weather and paddock grazing conditions, have made it difficult to predict when stock are in danger of contracting the disease. The risk of lupinosis discourages many farmers from growing lupins, despite the many potential benefits of including them in crop rotations.

A team of Department of Agriculture plant breeders, plant pathologists, and animal scientists set out in the mid 1970s to find resistance …

Grazing And Management Of Saltland Shrubs, C V. Malcolm, J. E. Pol

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

areas of bare saltland on farms need not be unproductive etesores. Many Western Australian farmers are now successfully growing salt-tolerant or halophytic shrubs such as bluebush (Maireana brevifolia), saltbushes (Atriplex spp.) and samphires (Halosarcia spp.) on these areas.

Department of agriculture trials and farmers' experience indicate that if saltland is planted with recommended shrubs, it can provide two months' valuable grazing for sheep during autumn and early winter, a time when paddock feed is scarce. Research by the Department has also identified a range of salt-tolerant shrubs suited to the various types of saltland.

Grazing trials to …

Fisheries Report No 73 - The Western Rock Lobster Fishery 1981 - 1982, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 10,548 tonnes in 1981/82, out of a total Australian catch of rock lobster of 15,764 tonnes. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and Hancock (1981) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to …

Atrophic Rhinitis In Pigs, A R. Mercy

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

Severe atrophic rhinitis in pigs recurred recently in Australia after an apparent absence of some 20 years. The first of these recent cases occurred in a Westerm Australian herd in late 1984 and since then six other local herds have reported the disease. Severe atrophic rhinitis has also been seen recently in South Australia.

Atrophic rhinitis is a complex disease which causes degeneration of the nasal cavity, twisting of the snout and sometimes occasional bleeding from the nose.

It occurs only in pigs and severely affected animals may have a slower growth rate.

Native Hay Production Along A Depth-To-Water-Table Gradient In Eastern Sandhills Wet Meadows, Wheeler County, Nebraska, Jean M. Novacek

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The Sandhills region of Nebraska, the largest dune field in the Western Hemisphere, occupies 15 north-central counties and extends over 51,800 km (20,000 mi) (Keech and Bentall, 1971; Ahlbrandt and Fryberger, 1980). Far from a desert, the Sandhills region is entirely vegetated by mixed-grass prairie with numerous wet areas and lakes in interdunal valleys. This rich, grass-covered dune sea stretches 427 km (265 mi) across from east to west and 209 km (130 miles) from north to south. The altitudes range from 670 m (2200 ft) above sea level in the eastern part to 1310 m (4300 ft) in the …

Economic Evaluation Of Breeding Objectives In Dairy Cattle. Intensive Specialized Milk Production In Temperate Zones, R. E. Pearson

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

In previous world congresses (Cunningham, 1974; Pearson, 1982) methods of estimating weights and choosing traits to include in the selection of objectives were discussed. A more recent discussion of objection functions for breeding decisions is in Allaire and Thraen (1985). This paper will focus more on the specific traits to be included in the selection objective for intensive milk production in temperate zones and on experimental evidence of relative economic importance.

Economic Evaluation Of Breeding Objectives In Sheep And Goats: General Considerations, J. W. James

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

The procedures to be followed and some of the problems which arise in defining breeding objectives are discussed. Special emphasis is given to attempts to reconcile conflicts between different bases of evaluation, and it is concluded that from a long-term viewpoint, efficiency should be the goal of the breeder, where efficiency is measured as the ratio of the value of all inputs to the value of all outputs. In the shorter term, or where artificial distortions of markets occur, other objectives may be preferred. Goals should be clearly distinguished from selection criteria, and this will be more likely to be …

Evaluation And Utilization Of Breed Resources: Sheep And Goats, R. L. Baker

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

I believe just a few brief introductory remarks to this plenary session are needed. We are discussion three distinct topics in this session and the reason for choosing them warrants some brief comment.

In the plenary session on Sheep and Goat Genetics and Breeding at this conference in Madrid in 1982 there were two papers relating to breed evaluation and utilization. Dr. Alan Quartermain discussed the utilization of breed resources in the improvement of goat productivity, while Dr. Neil Clarke comprehensively reviewed utilization of breed resources in the improvement of sheep productivity.

Evaluation Of Inter-Flock Genetic Improvement Programs For Sheep And Goats, G. B. Nicoll, L. Bodin, J. V. Jonmundson

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

Some of the factors involved in inter-flock or breed improvement programs are discussed. Such programs are complicated by the fact that sheep and goats produce a wide range of products under diverse environmental, management and economic circumstances. This leads to problems in defining realistic breeding objectives arising from determining the beneficiaries of genetic improvement, the major genetic decision makers in the industry and the relative importance of the various productive characteristics. The implementation of functional performance recording systems, breeding systems to generate young sire replacements, and testing systems to disseminate genetic improvement, also depend on the conditions under which the …

Evaluation Of Industry Breeding Programs For Sheep And Goats Introduction And Overview, J. N. Clarke

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

In his introduction to the Plenary Session of the First World Congress on Genetics Applied to Livestock Production for Sheep, Rae (1974) pointed to the wide diversity of sheep production systems throughout the world. Goats add further to this range in production environments, husbandry systems and to the variety of products for which these two domestic species are farmed. Such variety makes any consolidated review of Genetic Improvement Programs for sheep and Goats very difficult, especially if all important operational features of ~e production and marketing circumstances for each end product are to be considered in evaluating the success of …

Genetic Prediction For Beef In United States, R. L. Willham

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

Beef performance programs have come a long way since their start after World War II as a means of within-herd improvement. Now performance programs can be used to rank young animals on all the available information across all the herds of a breed. Opportunity exists to design and conduct performance programs that can be used to promote the breed, enhance management decision making, and make real genetic change in the breed.

Preliminary Results On Fertility, Prolificacy, Lamb Production, And Carcass Traits Of Romanov Sheep In Canada, Mohamed Hamed Fahmy

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

Performance of 14 ewes imported from France and their progeny born in Canada over a period of five years are reported. Least-squares means for fertility were 100% for ewes mated in the fall and winter and 42% for those mated in the summer (May - June). Litter size at birth (2.86 ± .15) and at weaning (2.10 ± .15) were significantly affected by season of mating and parity. The most prolific matings were those of the fall (3.18) and of ewes in their 5th parity (3.54). On the average .52 (18.2%) lambs died at birth and a further .25 (8.7%) …

Block And Bridle Annual, 1986

Block and Bridle Annual (1933–2021)

Table of Contents:

Staff
Contents & Emblem
Animal Science Dept. Chairman Address
President's Address
Meeting Calendar
Activities Calendar
Treasurer's Report
Advisors
Animal Science Faculty
Faculty Secretaries
Graduate students
Animal Science Liason
Block & Bridle Members
Block & Bridle Initiates
Block & Bridle Officers
Block & Bridle Executives
Block & Bridle Seniors
State Fair Awards
Steak Fry
Little AK-SAR-BEN
Queen Coronation
Regional Meetings
Kids Day
Ham sales
Christmas Coffee
Quadrathalon
Nebraska Big Red Beef Show
Quarter Horse Show
Meats Contest
1985 Honors Banquet
1985 Honoree
Past Honorees
Horse Judging Team
Livestock Judging Teams
Meats Judging Team
Index of Advertisers

Genetic Trend In Milk Yield Of Exotic Cattle In India, D. K. Sadana, V. N. Tripathi

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

For the purebred exotic cattle in India the phenotypic and genetic trends were estimated. While the phenotypic trends were positive for all the four farms, the genetic trend was found to be negative for three and positive for one. This necessitates a higher emphasis on progeny testing and sire selection for the improvement of the imported breeds.

Heterosis For Preweaning Traits In Devon-Hereford Crosses Under Temperate Range Conditions, A. L. Gyles, W. H. Upton, K. Hammond, J. M. Thompson, B. Tier

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

Heterosis for gestation length. birth weight. suckling stimulus. weaning weight and preweaning growth was estimated from the first years data of a complete two-breed diallel with the Devon and Hereford breeds. involving 119 calves by 29 sires grown together under temperate grazing conditions at Gunnedah. New South Wales. Australia.

Estimates of heterosis (and average mid-parent values) for gestation length were 0.2% (282.9 days); birth weight 6.5% (32.6kg); suckling stimulus 22.9% (3.51/day); weaning weight 5.9% (155.1kg); and average daily gain to weaning 7.0% (0.6kg/day).

Reproduction Ability Of Reciprocal Crossbreed Fl Generation By Sheep Of Mutton Merino Of German Type And By Rams Of The Breed Kent-Romney Marsh, Bora Cumlivski

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

Using the initial breeds which have been followed since 1970 we are creating a Czech Merino Breed with utility combined of fertility, meat, woll and milk, which might be suitable for conditions in Central Europe.

Impact Of Industry Structure, Intensity Of Production And Resource Constraints On Research Breeding Objectives, J. W. Wilton

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

The importance of the structure of the beef industry with respect to crossbreeding programs and division into cow-calf and feedlot segments; intensity of production with respect to market standards, feeds and labour; and resource constraints with respect to feed, labour, land and capital; are discussed and quantified where possible. The use of discounted gene flow provides estimates of relative expression rates which differ with crossbreeding programs and relative sizes of populations of purebred and commercial cattle. The importance of feedback from feedlot to cow-calf to purebred operation is emphasized, for both discounted expression rates and modelling approaches. The composition and …

Body Weight Of Horne Vs. Polled–Sired Awassi Lambs, J. E. Alkass, A. A. Alrawi, A. H. Al-Hillali, H. M. A. Al-Tayy

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

body weights of 120 progeny of horned and polled Awassi rams were compared. Ram group significantly influenced body weight at weaning (p < 0.01), 6 (p < 0.05) and 8 month (p < 0.01) of age in favour of horned-sires. It has been hypothesized that polled gene to exhibit overdominance and / or epistasis for body weight in the heterozygous lambs.

Ram lambs were significantly heavier than ewe lambs at all ages, and single lambs were significantly heavier at birth and weaning. Month of lambing had a significant effect on weaning weight. The effect of age of dam on birth weight was significant.

Feed Intake Of Dairy Cows As An Economic Selection Trait, Hans O. Gravert, Klaus Pabst

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

32 pairs of monozygons twins were fed ad lib. with a complete diet feed during the first 20 weeks post partum. The heritablity (in broader sense) for milk yield, feed intake and energy deficit was 0.39, 0.17 and 0.19 resp. the genetic and phenotypic correlations between daily milk yield and feed intake were 0.14 and 0.26 resp. Therefore selection for feed intake should be based on progeny groups of A. J. bulls. To estimate the feed intake under field conditions the content of ketone-bodies in milk at first and second test day p.p. can be combined with the milk yield …