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Effect Of Feeding-Fasting Interval On Finishing Pigs: Weight Gain, Feed Utilization And Physical And Chemical Carcass Measurements, T. L. Veum, W. G. Pond, L. Dale Van Vleck, E. F. Walker Jr., L. Krook

Department of Animal Science: Faculty Publications

Thirty-two Yorkshire pigs (49 kg body weight, 108 days of age) were used to determine the effect of feeding-fasting interval on rate of body weight gain, feed utilization and carcass and organ measurements at a slaughter weight of approximately 90 kilograms. Treatments were: (1) Continuous ad libitum feeding,(2) ad libitum 1 day, fasted on alternate days, (3) ad libitum 1 day, fasted 2 days, (4) ad libitum 1 day, fasted 3 days. Average daily gain was reduced progressively as severity of the fasting-feeding interval was increased. Efficiency of feed utilization, likewise, was reduced as the severity of feed restriction increased, …

Influence Of Dietary Supplements Of Vitamin D3 And Various Fats On Cholesterol And Fatty Acid Composition Of The Blood And Body Of Growing-Finishing Swine, M. H. Jurgens, E. R. Peo, Jr., P. E. Vipperman, Jr., R. W. Mandingo

Department of Animal Science: Faculty Publications

Previous work at this station suggested that vitamin D₂, when fed with or without dietary cholesterol, depressed blood cholesterol levels of swine (Jurgens, Peo and Vipperman, 1967) and rats (Jurgens, Blunn and Peo, 1968). While not proven to be the cause, blood cholesterol levels have been used as one of the main criteria to estimate the development of atherosclerosis in man (Rabinowitz, Meyerson and Wohl, 1960; Swell, Law and Treadwell, 1962). Several investigators have reported that supplementation of unsaturated fats (Ahrens et al., 1957; Okey and Lyman, 1957; Avigan and Steinberg, 1958; Peifer, 1966) and especially linoleic …

Once Daily Calf Feeding Lowers Rearing Costs, Department Of Agriculture, Western Australia

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

The usual method of hand rearing dairy calves involves twice daily feeding of milk or milk substitutes.

This routine adds considerably to the labour necessary at milking time and may have prevented many farmers from putting much effort into dairy beef production.

The report below comes from a 1969 trial carried out at Bramley Research Station to see if once-daily calf feeding was as effective as twice daily feeding.

The trial's results should be considered as early findings from a series of trials being conducted into calf rearing regimes by both the Animal and Dairying Divisions of the Department of …

Dry Supplements Reduce Labour And Cost Of Calf Rearing, Department Of Agriculture, Western Australia

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

The conventional method of hand rearing dairy calves in Western Australia calls for the feeding of whole milk, skim milk and/or milk substitutes for periods of up to 16 weeks.

This requirement for milk and labour has often prevented beef production from becoming a major sideline on many wholemilk and butterfat farms.

The two trials reported below* were carried out at Bramley Research Station to see if milk consumption and time to weaning could be reduced by free-feeding hay and cereal based supplements.

Choosing Your Lambing Time, T Marshall

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

SHEEP, pastures and labour are the major resources of the sheep enterprise but their productivity is greatly affected by the timing of operations associated with them.

This article discusses how the lambing time can be chosen to get maximum use from each resource.

Look After The Tail Enders, B R. Beetson

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

IN Department of Agriculture drought feeding trials last summer, shy feeders lost weight and died while the bigger sheep grew fat. When drafted off and fed separately the shy feeders ate their share and survived the summer.

Effect Of Feeding-Fasting Interval On Finishing Pigs: Blood Urea And Serum Lipid, Cholesterol And Protein Concentrations, T. L. Veum, W. G. Pond, E. F. Walker Jr., L. Dale Van Vleck

Department of Animal Science: Faculty Publications

A system of restricted feeding in which feed is entirely withheld for intervals of 24, 48 or 72 hr. following a 24-hr. period of ad libitum feeding in continuous sequence throughout the finishing period depresses weight gain and efficiency of feed utilization in direct relation to duration of the fasting period and has marked associated effects on carcass measurements, gland and organ weights and a small effect on fatty acid composition of the back fat (Veum et al., 1970). Cohn (1963) and Leveille and Hanson (1965, 1966) have shown marked changes in metabolism of nutrients and in body composition associated …

Flavor Preference And Stability Of A Low-Fat Dairy Spread, James Robert Miller

Electronic Theses and Dissertations

Low-fat dairy spread has been defined as a product which contains only dairy ingredients and has a lower fat content than the commonly used spreads, butter and margarine (5). Although some low-fat spreads have contained very little fat, most of those which have been developed during the past 30 years have contained about one-third to two-thirds as much fat as the commonly used spreads and have had a higher protein content. ·The low-fat dairy spread studied in this project contained about ten times more protein and only one-half as much fat as butter and margarine. The present day justification of …

Studies On The Nutritional Aspects Of Tubificid Worms, Thomas Nelson Seng

Masters Theses

No abstract provided.

An Experimental Study Of The Food Plant Preferences Of The Black Cutworm, Agrotis Ypsilon (Hufnagel), Alan C. York

Masters Theses

No abstract provided.

Effect Of Days Open On Lactation Production, Roger L. Ripley

Electronic Theses and Dissertations

Accurate evaluation of dairy production records is essential if dairymen are to establish and maintain profitable dairy herds and efficient culling programs. Improper record evaluation may result in. saving breeding stock that otherwise might be eliminated. Many factors may influence the validity of individual production records. Adjustment factors, currently in use by the United States Department of Agriculture (USDA) for sire and cow evaluations, are generally accepted as removing the majority of these influences. Consequently, these factors are invaluable to practical dairymen. The adjustment factors, suggested by McDaniel, et al. (24) in 1967, take into account the geographical location, season …

The Effect Of Harvesting And Storage Methods On Chemical Composition And In Vitro Digestibility Of First Cutting Alfalfa Hay, Perry A. Fales

Electronic Theses and Dissertations

The importance of alfalfa hay in dairy cattle feeding is generally acknowledged. The reasons why alfalfa is used so extensively in dairy cattle rations are due to its high protein content, high acceptability by cattle, its wide ·area of adaptation, and high yields. A popular way of handling the forage is to put it up as hay. South Dakota produced 3,261,000 tons of alfalfa hay in 1968. There were 73 million tons of alfalfa hay produced in the United States during 1968 (10) making it a crop of major importance. Farming practices have changed considerably the last ten years. Among …

Urea Or Grain Supplements For Stubble?, H E. Fels

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

Three methods of supplementing sheep grazing stubble were compared at Merredin Research Station in 1970. The stubble used in the experiment was left after harvesting a nine-bushel crop of Gamenya wheat which was a weed-free second crop on new land. The land had never been sown to legumes.

Three Beef Raising Systems For Butterfat Producing Properties, Department Of Agriculture, Western Australia

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

THREE-QUARTERS of the calves born in autumn on butterfat farms are not required as milking replacements and are thus available for beef production or immediate sale, at about $20 a head.

The profit from selling beef must be compared with that from selling excess calves off their mothers.

Such a comparison is being made by Department of Agriculture Beef Research Officer D. J. Barker in a series of trials at Bramley Research Station, Margaret River.

Sheep : Experimental Basis For Urea Feeding Recommendations, Department Of Agriculture, Western Australia

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

Recent scientific reviews have concluded that in spite of the great number of experimental observations recorded throughout the world there is no evidence yet to prove that urea can be used profitably for sheep on low quality roughages in genuine grazing conditions.

An experiment is in progress at Merredin Research Station this season, especially designed to demonstrate a response to urea by sheep grazing wheat stubbles, if such a response is possible.

Experiments With Urea On Private Farms, R J. Parkin, G. Palmer, A. Haagensen, L. D. White, R. J. Suiter, H. E. Fels

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

Many District Advisers have carried out trials on private farms to test the response to a variety of types of supplementary feeds. This report gives brief details of five such experiments carried out with urea supplements over the last five years. Table 1 summarises the details and results of these trials.

Thirteenth Random Sample Laying Test : 1969-70, Department Of Agriculture, Western Australia

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

THIRTEENTH RANDOM SAMPLE LAYING TEST, 1969-70

SECOND PROGRESSIVE REPORT TO 1st MARCH, 1970 Average age of birds 215 days or 30 weeks and 5 days

Urea Mixture Formulations, H E. Fels

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

This experiment was done once the experiment above (Urea or Grain Supplements for Stubble) had shown definite but uneconomic responses to a particular mixture of urea, molasses and minerals. The aim was to find whether the response depended on the content of various portions of the mixture, and whether the response to the "shotgun" lick could be explained by the presence of salt, sulphate or cobalt.

Reproductive Biology Of Thais Emarginata (Deshayes, 1839) And Thais Canaliculata (Dulcos, 1832), Roy Seamands Houston

University of the Pacific Theses and Dissertations

Thais emarginata (Deshayes, 1839) and Thais canaliculata (Dulcos, 1832), are two common Pacific coast gastropods (Family: Muricidae). T. emarginata is found in semi-protected rocky areas from Alaska to Baja California, while T. canaliaulata occurs in quiet bays from Alaska to Monterey Bay, California (Ricketts and Calvin, 1966). Both species occur on rocks and jetties where they can be seen feeding upon barnacles and young mussels. Despite the abundance of these species their reproductive biology has not been examined.

In the present study, the following aspects of the reproductive biology of T. emarginata and T. canalieulata are presented: Relationship of gonadal …

A Histochemical Study Of The Ovary Of The Milkweed Bug Oncopeltus Fasciatus (Dallas), With Special Reference To The "Intermediate" Cell, Khian Kioe Liem

Masters Theses

No abstract provided.

Aging Illinois White-Tailed Deer By The Tooth Replacement And Wear And The Cementum Annuli Techniques, James B. Bertoglio

Masters Theses

No abstract provided.

The Development Of Eimeria Auburnensis In Cell Culture, Wayne Norris Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In vitro development of Eimeria auburnensis was studied in cell cultures. The cell types used were established cell lines of adult bovine kidney (Madin-Darby) and embryonic human intestine cells (Int 407); also cell line cultures of embryonic bovine trachea and embryonic bovine spleen cells were used. Monolayer cell cultures were serially propagated in disposable prescription bottles and transferred to Leighton tubes for use in experiments. Coverslips from Leighton tubes cultures inoculated with sporozoites were examined at regular intervals with phase-contrast microscopy for as long as 20 days after inoculation. After examination, coverslips were fixed in Schaudinn's fluid or Stieve's fixative …

1969 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Aggressive Man And Aggressive Beast, Allen W. Stokes

Faculty Honor Lectures

Whether man can live in harmeny with his environment depends in great measure en his ability to' live with his fellew man. Can man learn to' engineer human seciety in time to' prevent a helecaust? Mere specifically, can we learn to' prevent aggressien er to' channel it harmlessly? The ethelegist leeks upen man's behavier as just part ef the tetal spectrum ef animal behavier. Therefere, much of what we learn abeut the behavier ef lewer animals sheuld relate to' human behavier.

Aggressien is in the headlines every day, and in the past few years there has been a 'Steady stream …

Changes In Body Weight And Composition Of Adult Nongravid Female Rats Deprived Of Dietary Protein, W. G. Pond, L. Dale Van Vleck, E. F. Walker Jr., C. F. Eisenhard, J. R. O'Connor

Department of Animal Science: Faculty Publications

Seventy-six young adult nongravid female rats of the Carworth strain were used in two experiments to study the effect of dietary protein deprivation on body weight, feed consumption, body composition and serum protein concentration. Semipurified diets containing glucose, corn oil, vitamins and minerals with or without casein (protein-free = PF, 14% casein = C) were fed ad libitum in both experiments to rats caged in individual wire-bottom cages. Feeding the PF diet for up to 26 days resulted in a continuous weight loss over the entire period. The average loss in body weight as a percentage of initial weight of …

Two Causes Of Reduced Profit From Pigs, G A L Ward

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

LOSS of condition in a pig affects profits more severely than slow rate of growth.

Two common symptoms, scouring and itching, cause weight loss and are followed by a period of reduced weight gain.

Home Mixing Or Purchased Feeds?, P Mcnamara

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

FEED is the largest single cost in pig production, so any saving which can be made will be of major importance.

The Pig's Need For Minerals, N W. Godfrey

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

Only 16 of the one hundred odd chemical elements known are considered to be essential mineral elements for pigs.

As some of these are required in much smaller quantities than others, they are referred to as trace or minor elements, while the remainder are called major elements.

Tallow As A Substitute For Butterfat In The Diet Of A Young Calf, R. Sprivulis

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

WHILE cow's milk is the best food for a young calf it is also very expensive.

The normal substitute for whole milk is skim milk, but removing the butterfat from cow's milk reduces the dry matter content by 30 per cent and the digestible energy by 50 per cent.

High Stocking Rate On Kikuyu Dairy Pasture : Progress Report On Grazing Trials On Kikuyu-Sub. Clover Pasture At Denmark Research Station, F E. Ryan

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

KIKUYU is one of the most valuable pasture plants on dairy farms in the South-West of Western Australia.

It combines well with subterranean clover and ryegrass if heavily stocked, and pastures managed in this way can be cut for legume-grass hay in the spring. However, relatively little is known of its carrying capacity or potential for production under grazing.