Chicken egg (Layer) Industry

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Chicken egg (Layer) Industry

In Australia, the chicken layer industry, or egg industry, is an important intensive animal production system. In 2011, the Australian egg industry produced 392 million dozen eggs, with Australians now eating (on average) 213 eggs per person per year. In terms of retail, 128.4 million dozen were sold across Australia in 2011, worth $523.5 million. Approximately 55% of eggs are produced in cage layer farms, with the balance coming from barn (9%) and free-range (34%) farms (Source: AECL). Backyard egg production is common in Australia and is closely tied in with Australians fondness of poultry.

Chicken eggs and egg products have traditionally been, and still are, a popular part of the human diet. The egg is formed in the reproductive organs of the female chicken. Most commercial strains of hen can lay over 260 eggs per year and some improved breeds can lay over 300 eggs in a year – this is almost an egg every day. It is not necessary for a hen to mate with a rooster before she can produce an egg. Modern types of hen have been bred so that they will lay even if there is no chance of producing a chick. Layer chicks are sexed and the females are sold as future layers and the males are humanely killed.

Production of eggs to meet Australian demand

Eggs are collected as soon as possible after being laid and are held in cool storage to protect internal quality. Farmers check eggs for quality using a special lighting (candling) system. Cracked or weak-shelled eggs and other abnormal eggs are discarded. A sample of each batch of collected eggs is checked for internal quality and freshness.

The eating value of eggs has long been recognised. An egg contains 12% shell (which is not eaten), however the remainder of the egg is a mix of protein, energy, minerals and vitamins. This means that eggs are a highly nutritious food that forms part of a good mixed diet. Eggs contain the substance cholesterol, which has been seen in the past as an undesirable characteristic. However, this issue has been simplified as there are ‘good’ and ‘bad’ forms of cholesterol and eggs have been shown to increase the ‘good’ form of cholesterol in the blood of people who consume eggs (Djousse and Gaziano (2008) AJCN, 87(4):964-969). Eggs also contain many other beneficial fats and amino acids. Some producers have marketed specialty eggs which are fat modified (omega-3 enriched). This is done by feeding hens on a specially selected diet.

Systems used to produce eggs

The farmer who produces eggs is commonly referred to as an egg producer.

         Extensive

There was once a time when every farm and many suburban households had a few chooks scavenging in the yard, getting some household scraps, and sometimes getting a handful of wheat each day. This method of farming is called extensive. The number of these farms decreased as intensive farming methods developed, allowing one person to care for large numbers of birds.

         Semi-intensive

Free-range can still be intensive

Until the 1950s, commercial egg producers had a few hundred to a few thousand hens housed in a shed with access to a yard surrounded by a 2 m high wire netting fence to keep foxes away. These were called semi-intensive farms and were often located in country areas close to the source of feed ingredients, especially wheat. Similar semi-intensive farms of a few thousand birds had become popular on the outskirts of major cities by the middle of the 1950s. This location was favoured because it was closer to the city market, where most eggs were sold.

         Intensive

Intensive production means large numbers of animals are kept in a small area. With the introduction of layer cages in the 1960s, farms became more intensive and larger flocks, up to 15000 birds, became common. In 1979 there were 3200 layer farms in Australia but by 1986 this number had reduced to 1700. A few very large farms, with up to 100,000 birds, developed in the 1970s. Today some farms have up to 500,000 hens in multiple level sheds.

Location of egg farms in Australia

Barn layer system

The distribution of poultry farms is determined by population (where the people who will buy the eggs are living) and by the location of feed ingredients, mainly cereal grains, for the hens. It is less costly to transport eggs than it is to move the feed for hens.

Free-range, barn and organic egg production

Some people prefer to buy free-range and barn eggs because they object to hens being kept in cages. While organic eggs are purchased by people who value the ethos behind organic agriculture. As a result, these methods of egg production are becoming more common. Special rules were developed to identify farms which are truly free-range or barn eggs so that buyers can be sure they are getting the products they are paying a premium for. The organic egg industry also has a comprehensive set of regulations they must abide by to maintain their organic certification.

History of egg market control in Australia

1927 – State governments established egg marketing boards because the large number of small egg farmers found it difficult to bargain with the small number of large egg buying companies. The board members were mainly egg producers. The egg boards enabled farmers to set egg prices within government price control regulations. The marketing boards in each state were legally obliged to buy all eggs a farmer produced and a farmer was not allowed to sell any eggs without the agreement of the board.

1970s – By 1970, farmers had applied a lot of scientific knowledge and had become very efficient at egg production. This efficiency meant that they eventually produced more eggs than the boards could sell. It was then decided to give additional power to the boards to enable them to control the number of hens which a farmer could hold. This method of production control took some time to work, as farmers had applied scientific knowledge and improved the efficiency of egg production from each hen so dramatically that over-production continued to be a problem for some years.

Hen quotas

Production control was achieved by issuing free licenses to keep hens, called hen quotas. As farmers wished to expand, they needed to buy additional quota and the price increased by $18.00 per quota at one stage. This made it difficult for new farmers to get into the industry. During the 1980s some farmers refused to limit their bird numbers and consumers felt that prices were being kept high by the use of the quota system. As a result governments in NSW and SA deregulated the industry and disbanded the egg marketing boards, with Victoria following.

Deregulation

Egg production now operates as a free market with supply and demand determining prices. The idea is that efficient producers are able to produce quality eggs at a reasonable price while inefficient producers are forced out of the business. Larger producers are generally favoured because they can usually produce eggs at a lower cost than small producers. Except for small specialty markets, there seems to be little opportunity for small commercial farmers to compete with large scale producers in the general market and this could be said for all egg production systems. Refrigerated trucks make the transport of eggs very easy.

Cost of producing eggs

The average cost of egg production is approximately 95 cents per dozen or around $1.45/kg. Some of the factors which affect this cost are:

  1. Price of feed ingredients. This depends on the weather and overseas grain and protein prices.
  2. Cost of rearing pullets from day-old to point of lay, or purchasing pullets at point of lay.
  3. Level of mechanization on the farm. Labour costs decrease, but equipment costs increase as farms become larger, more mechanized and automated.
  4. Mortality

Layer farm sequence

Layer farm sequence A standard procedure is followed for the Layer Farm Sequence. This procedure starts when female chicks are raised into pullets for commercial egg production. This stage is called ‘rearing’,... read more

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