Dairy Science Commons^™

Greener Pastures 1 - The Greener Pasture Project: Managing Nutrients In Dairy Pastures, John Lucey, Mike Bolland, Don Bennett, Richard Morris, Bill Russell, Martin Staines

Bulletins 4000 -

As dairy farmers have strived to maintain profitability, many have farmed more intensively. More cows are milked and increasing inputs of fertiliser and purchased feed are used per hectare. However, these increased nutrient inputs have far exceeded the increase in nutrient output in milk production. The increasing nutrient surplus (inputs minus outputs) from intensification on dairy farms has met with increasing community concern about the environmental footprint of the dairy industry. In some other countries, dairy farmers who have intensified by increasing nitrogen inputs are now faced with legislation controlling the amount of fertiliser nitrogen that they can use.

The …

Report On Phosphorus And Potassium Experiments Conducted On Partner Farms Of The Greener Pastures Project, Mike Bolland, Ian Guthridge, Graham Blincow, Peter Needs

Bulletins 4000 -

Dairy production in south-western Australia occurs predominantly on sandy soils in the greater than 800 mm annual average rainfall areas of the region. The climate is Mediterranean-type, typically with cool, wet May-October growing seasons and hot, dry November-April. Most dairy pastures are rain-fed and comprise the annual species Subterranean Clover (clover, Trifolium subterraneum L.), Annual Ryegrass (Lolium rigidum Gaud.) and Italian Ryegrass (L. multiflorum Lam.).

Paddock grown pasture is the cheapest source of feed for dairy production in the region (Dilley and Howes 1998). To remain profitable in the face of diminishing returns, dairy farmers have modified their grazing management …

Lime For High Rainfall Pastures: Above 800mm Average Annual Rainfall, Mike Bolland, Bill Russell

Bulletins 4000 -

Conventional agriculture acidifies soil. As your soil becomes more acid, productive pasture species disappear and are replaced by species of low agricultural value. It is a waste of money to apply expensive fertiliser to pastures which are inherently poorly productive because they are growing in an acid soil.

The paper examines the types of lime available, how to select lime for quality and when and how much lime to apply. Maganese toxity and aluminum toxicity are examine, how to test your soil, and affect of soil acidity on bacteria and other microorgansims.

Returns To R&D Investment Of Dafwa: Benefit Cost Analysis, 2005-2006, Nazrul Islam

Bulletins 4000 -

The primary outcome or objective of the projects that are assessed, is to increase the market competitiveness and profitability of agri-industry.

Dam Design For Pastoral Stock Water Supplies, J S. Addison, R J. Law, G B. Eliot

Bulletins 4000 -

These notes provide information on many components of water harvesting storage systems designed for use in semi-arid areas. The notion of a water harvesting and storage system is deliberately emphasised. No single design component can be considered in isolation if the goal of a drought-proof water supply is to be achieved.

A drought-proof surface water supply is achieved by integrating the many design components of a water harvesting/storage system into a practical plan.

Controlling Sheep Meat Disorders, Michael Paton Dr

Bulletins 4000 -

No abstract provided.

Effects Of Pre-Milking Teat Sanitation On The Quality Of Raw Milk, Laurie Depiazzi, Ian Bell

Bulletins 4000 -

The effect of Quartermate pre-milking teat sanitation on milk quality was investigated in twelve dairy herds over a period of eight weeks. Pre-milking teat sanitation was carried out on all cows for six weeks on each of six farms and mesophile and thermophile bacteria counts of raw milks were compared before the milk line (“cluster” samples), and at various points within milking plants. Rates of mastitis, vat milk iodide levels and specific bacteria were also monitored.

Scott Coastal Plain A Strategy For A Sustainable Future, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

The Scott Coastal Plain has significant attributes that make it an area of State and regional significance for agricultural production. The climate, availability of good quality groundwater for irrigation, and large lot sizes provide opportunities for mechanised horticultural production which other parts of the State may not have.

An estimate of the area that could be used for each agricultural land use has been developed, at a broad study area level. The figures presented in this report show that diversified production combining tree plantation and/or irrigation (cropping or hay/silage) with grazing enterprises provides for potential increases in gross margins and …

Productive Pastures Pay - A Manual On Pasture Establishment And Management For The Above 700 Mm Rainfall Zone, P T. Arkell

Bulletins 4000 -

This manual on pasture establishment andmanagement is designed to help farmers grow productive pastures. It deals with annual and perennial pastures on dryland and irrigated farms in the above 700 mm rainfall zone and may be used by individual farmers or discussion groups. Input from discussion groups will improve futureeditions of the manual.Farmers frequently need to reseed their pastures. Pastures deteriorate and new, more productive species and cultivars come on to the market. Also improved techniques are developed to tackle land management problems like salinity, waterlogging and acidity. All these situations lead to a reseeding operation.

Facing A Drought, J A C Smith

Bulletins 4000 -

This booklet is aimed at helping you decide on strategies, in this and future droughts, in relation to money flow, animal management and cropping. It highlights the technical problems associated with different strategies and how to combat them.

Varieties Of Cheese, T A. Morris

Bulletins 4000 -

While Cheddar cheese is by far the main type as far as English speaking countries are concerned, it is only one of a large number of varieties of cheese which are becoming more universal in production and consumption. In other than English speaking countries Cheddar cheese is almost unknown and yet the consumption of cheese in some of these countries is very much greater. The naming of cheese types has usually been a result of the use of the name of the place where the cheese was first made. Thus cheeses of similar type but produced in a different locality …

Raising Dairy Herd Replacements From Weaning To Calving, R Bettenay

Bulletins 4000 -

The way heifer replacements are reared from weaning to calving can affect their ability to get in calf and to grow to a reasonable size. Under extreme conditions it can impair their lifetime yield. Because the culling rate of cows from dairy herds is usually about 25 per cent, the farmer needs to keep up to 70 per cent of heifer calves born just to maintain herd size. As the herdsize is usually increasing, even more of the heifer calves must be kept and there is little scope for culling heifer calves from poorer cows.