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Comparative Nutrition Commons

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Articles 121 - 150 of 242

Full-Text Articles in Comparative Nutrition

Farm Grazing Levels, Department Of Agriculture, Western Australia Jan 1972

Farm Grazing Levels, Department Of Agriculture, Western Australia

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

Stocking rates in many dairying areas are so low that the Division has established nine grazing level demonstrations in various areas.

Their aim is to demonstrate that higher stocking rates are practical on existing farms.


Nitrogen On Rapeseed, Department Of Agriculture, Western Australia Jan 1972

Nitrogen On Rapeseed, Department Of Agriculture, Western Australia

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

Experiments comparing the responses of wheat and rape to nitrogenous fertilisers were planted at 26 sites from Geraldton to Esperance in 1971.

In spite of hail damage and poor emergence of rape at some sites, meaningful results were obtained in 18 cases.


Nitrogen Fertilisers And Cereals, M G. Mason Jan 1971

Nitrogen Fertilisers And Cereals, M G. Mason

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

FEW aspects of cereal growing have received as much attention in the past 20 years as nitrogen fertilisers.

The recommendations and yield figures presented below are based on numerous trials in the agricultural areas of Western Australia.


Grain Finishing Of Beef Cattle Grazing Dry Pasture Or Stubble, D J. Barker Jan 1971

Grain Finishing Of Beef Cattle Grazing Dry Pasture Or Stubble, D J. Barker

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

WHEAT quotas, poor wool prices and the availability of cheap grain on the farm have stimulated interest in grain finishing of cattle for out-of-season beef production. For many years, Animals turned off in the autumn-winter period have brought better prices than those sold in summer, at the end of the pasture flush.

Feeding grain supplements to cattle on dry pasture or stubble requires less capital than feedlotting and saves the cost of handling and processing roughage.

This article gives the essentials for grain supplementation of dry pasture or stubble but warns that grain finishing is unlikely to be profitable outside …


Feedlots For Beef In W.A. : Some Guiding Principles, D J. Barker Jan 1971

Feedlots For Beef In W.A. : Some Guiding Principles, D J. Barker

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

FEEDLOTS are small enclosures where all of the animal's feed is supplied from an outside source. Compared with grazing, feedlotting is an expensive method of beef production.

This article gives a guide to the requirements for establishment and management of a farm feedlot, especially the basic equipment and materials, the type of cattle most suited to feedlotting, rations and feeding techniques.

The author warns that skill and experience are needed to run a feedlot and describes feedlotting as an expensive method of beef raising when compared with grazing.

Further details are available from the author


When Is A Cattle Feedlot Profitable?, J T. Stoate Jan 1971

When Is A Cattle Feedlot Profitable?, J T. Stoate

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

THE current surge of interest in feedlots stems from low coarse grain prices and comparatively low early summer baby beef prices. Cattle raisers sense the opportunity for higher prices by holding the cattle on the farm over summer and autumn, and grain producers see better returns from barley and oats fed to cattle than sold as grain.

This article examines the profitability of cattle feedlots and presents sample budgets for two typical situations—the farmer who produces his own cattle but buys grain, and the cereal grower who produces grain but buys in cattle for finishing in a feedlot.

A ready …


Dairy Beef Shows Healthy Profits, D J. Barker Jan 1971

Dairy Beef Shows Healthy Profits, D J. Barker

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

The October, 1970, issue of the Journal of Agriculture included results from the first year of a dairy beef production trial at Bramley Research Station.

This report presents results from the trial's second year, during which two levels of pasture utilisation were tested. The trial is now in its third year.


Thinking Of Pigs To Raise Your Income?, P Mcnamara Jan 1971

Thinking Of Pigs To Raise Your Income?, P Mcnamara

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

WHEAT quotas and low wool prices have caused many farmers to look to pigs to consume homegrown grain and to lift their incomes. However, with sow numbers at a record level, is it possible for a wheatbelt farmer to raise pigs profitably?

Because of his access to cheap grain, the wheatbelt farmer may be able to make a good profit on each pig sold. This could make pigmeat production a useful sideline on the farm, providing the farmer produces only lean pigs. There is no market for overfat pigs.

This article gives some hints on production of pigs on cereal …


Tender Wool Can Be Avoided, I G. Ralph Jan 1971

Tender Wool Can Be Avoided, I G. Ralph

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

THE production of tender wool which will not stand the tension and friction of the combing process can be reduced by an alteration in sheep management practices.

This is the finding of research carried out by the Sheep and Wool Branch of the Department of Agriculture over an eight-year period.


Dairy Calves Can Safely Be Fed Once A Day, R A. Bettenay Jan 1971

Dairy Calves Can Safely Be Fed Once A Day, R A. Bettenay

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

THE sale of milk rather than butterfat has increased greatly in the past few years and less than half the dairy farmers in Western Australia now own cream separators.

Feeding whole milk once a day can be successful for raising dairy calves, even in winter when calf rearing is most difficult.

A recent experiment at Wokalup Research Station showed that satisfactory weight gains can be achieved if liquid milk is fed only once a day from a very early age. Trial calves gained I lb a head a day over the 12 weeks of the experiment.

Once-a-day feeding greatly reduces …


Once A Day Calf Feeding, R A. Bettenay Jan 1971

Once A Day Calf Feeding, R A. Bettenay

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

Trials at Wokalup Research Station in 1970 proved that calves could be successfully reared with once a day liquid milk feeding, providing a high protein meal was continually available.

This trial was carried out to see if the high protein meal was essential for the success of the once a day feeding system.


Effects Of Water Hardness On Processed Quality Of Carrots, Sweet Cherries, And Apricots, Jack C. Chiang May 1970

Effects Of Water Hardness On Processed Quality Of Carrots, Sweet Cherries, And Apricots, Jack C. Chiang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Honey Sweet carrots were canned with Ethyienediamine tetracetic acid (CaNa2EDTA) and Sodium hexametaphosphate (Ha-HMP) at five different water hardness (0 , 20, 40, 80, 160 ppm of calcium and 20 of magnesium) , then stored at temperatures of 70 and 100 F. Evaluations were made at sixty-day i intervals for six months. Firmness and color degradation decreased significantly when water hardness or storage time increased. Under storage at 100 F and 0 hardness of water, the decrease of color and firmness was constantly accelerated.

When hard water (above 80 ppm or below 40 ppm) was used for …


Feeding Urea To Cattle, D J. Barker Jan 1970

Feeding Urea To Cattle, D J. Barker

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

RUMINANTS normally obtain the protein they require by digestion of the organisms that inhabit the forestomach (rumen), not by direct digestion of the dietary protein they chew up and swallow.

The organisms break down the dietary protein and then rebuild proteins in the form of more organisms.


Rationing Standing Crops To Sheep, H E. Fels Jan 1970

Rationing Standing Crops To Sheep, H E. Fels

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

This experiment was done at Merredin Research Station to develop and test a method of rationing standing crops to sheep, and also to find whether rationing would reduce the sheep's water consumption.

The experiment involved 60 sheep on 12 one-acre plots of drought affected Gamenya wheat.


Surplus Cereal Crops For Sheep Feed, H E. Fels Jan 1970

Surplus Cereal Crops For Sheep Feed, H E. Fels

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

SINCE the introduction of wheat quotas many farmers have considered feeding unsaleable grain to sheep.

The three alternative methods of feeding this grain to sheep are

• as standing crops

• as grain supplements, fed in the paddock

• as grain plus hay, in a feedlot.


Crop Rationing : A Useful Drought Feeding Technique, H E. Fels Jan 1970

Crop Rationing : A Useful Drought Feeding Technique, H E. Fels

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

A TRIAL carried out during the 1969 drought demonstrated that rationing standing crop is a practical method of feeding it to sheep when feed is scarce.

Rationing will be mainly a drought feeding technique for that part of the crop which will definitely be used as sheep feed. Crop that may or may not be needed for sheep would normally be harvested and the grain kept as a contingency allowance.


High Pre-Mating Liveweights Improve The Lambing Performance Of Merino Ewes, R J. Suiter Jan 1970

High Pre-Mating Liveweights Improve The Lambing Performance Of Merino Ewes, R J. Suiter

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

Analysis of lambing trials with Merino ewes has shown a highly significant association between pre-mating liveweight and lambing performance.

With May-June lambing ewes there was a 2.9 per cent, lambing increase for every extra 10 lb. liveweight; for July-August- September lambing ewes there was a 6.9 per cent, increase for every 10 lb. liveweight increase.

With the May-June lambing there was a critical weight below which twinning was negligible.


Supplementing Calves With Tallow : Results Of A Trial At Wokalup Research Station, Department Of Agriculture, Western Australia Jan 1970

Supplementing Calves With Tallow : Results Of A Trial At Wokalup Research Station, Department Of Agriculture, Western Australia

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

THE removal of butterfat from milk by separation, reduces the energy content of the milk by about 50 per cent., and must slow the growth of calves unless extra energy is provided from some other source.

In the dairying districts of Western Australia, there has been considerable interest in recent years in the addition of homogenised tallow to skim milk to provide extra energy.

Good calves have been produced by this means.


Lupins In Western Australia. 4. Composition And Feeding Value Of The Seeds, John Sylvester Gladstones Jan 1970

Lupins In Western Australia. 4. Composition And Feeding Value Of The Seeds, John Sylvester Gladstones

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

PREVIOUS articles in this series have discussed the varieties of lupin available in Western Australia, and their cultivation.

This article deals with the composition and feeding value of the seeds.


Carrying Prime Lambs Through Summer, R J. Suiter Jan 1970

Carrying Prime Lambs Through Summer, R J. Suiter

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

The annual lamb glut in September- October has caused many farmers to show interest in feed lotting and other methods of carrying over prime lambs for a higher priced market.

Unfortunately however, little information has been available on the necessary techniques under Western Australian conditions.

This report presents the results of the first year of a trial being conducted at Chapman Research Station to examine some of the problems associated with carrying lambs through the summer for later marketing.


Urea Block Supplements For Stubble, H E. Fels, R. J. Parkin Jan 1970

Urea Block Supplements For Stubble, H E. Fels, R. J. Parkin

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

THERE was a great deal of controversy throughout the summer of Western Australia's 1969-70 drought over the feeding of supplements other than grain to grazing sheep.

This report summarises some of the experiments carried out by this Department to investigate various artificial means of supplementing sheep grazing stubbles and dry summer pastures.

Further details of the experiments can be obtained by contacting the authors.

The results failed to demonstrate economic responses to urea supplements for grazing sheep.


Once Daily Calf Feeding Lowers Rearing Costs, Department Of Agriculture, Western Australia Jan 1970

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 Jan 1970

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.


Lupins In Western Australia. 5. The Grazing Value Of Green And Mature Lupins, John Sylvester Gladstones Jan 1970

Lupins In Western Australia. 5. The Grazing Value Of Green And Mature Lupins, John Sylvester Gladstones

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

WHETHER or not lupins are grown primarily as a grain crop, grazing of standing crops and harvested stubbles will continue to be an important use. This article examines the uses of sweet lupins for forage, and the main problem of lupin grazing, lupinosis.


Look After The Tail Enders, B R. Beetson Jan 1970

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.


Urea Or Grain Supplements For Stubble?, H E. Fels Jan 1970

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 Jan 1970

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 Jan 1970

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 Jan 1970

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 Jan 1970

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