Unit 5: The Lamb Market

Evaluation of lamb finishing systems

Grass Finished
Overview:

  • Pasture-based finishing is common, especially in regions like Wales, Scotland, and the West Country, where lush, nutrient-rich grasslands are abundant. Lambs are finished primarily on high-quality grass.

Key Features:

  • Lambs graze on permanent pastures, often improved with clover or ryegrass to enhance nutritional value.
  • Rotational grazing systems can be used to ensure optimal grass growth and utilisation.

Advantages:

  • Low feed costs, as pasture is a natural, abundant resource.
  • Produces lean, high-quality meat, ideal for the growing demand for grass-fed products.
  • Environmentally sustainable and aligns with the UK's focus on regenerative farming practices.

Challenges:

  • Growth rates can be slower compared to supplement-fed systems, especially in wet or cold seasons.
  • Seasonal variation in pasture quality, particularly during the winter, when grass growth declines.

Forage Crop Finishing
Overview:

  • Finishing lambs on forage crops like kale, turnips, swedes, or forage rape is common in autumn and winter. These crops provide high-quality nutrition when grass is limited. 

Key Features: 

  • Lambs graze directly on planted forage crops, which are often used in crop rotations or as cover crops. 
  • These crops are typically planted after harvesting cereals and provide a reliable feed source in colder months. 

Advantages: 

  • Utilises land efficiently by integrating crop and livestock production. 
  • Provides a high-energy, protein-rich diet during the winter when grass is scarce. 

Challenges: 

  • Requires careful management of soil and crop rotations to prevent damage to land. 
  • Costs associated with establishing forage crops and fencing for strip or paddock grazing.

Ad-lib Concentrates

Overview:

  • An indoor finishing system, where lambs are housed and fed a high-energy diet based on concentrates. It is used to achieve consistent growth rates and market readiness, particularly during the winter months. 

Key Features: 

  • Lambs are housed indoors and fed concentrates with some roughage feed available, e.g hay or straw.  
  • This system allows precise control over weight gain and fat deposition, ensuring lambs meet market specifications. 

Advantages: 

  • Faster growth rates compared to grazing systems, reducing the time to market. 
  • Consistent quality and size of finished lambs, ideal for meeting specific market demands. 
  • Less weather-dependent, especially in winter when grass quality declines. 
  • No effect on the land which can have a break over the Winter months ready for lambing in the Spring.  

Challenges: 

  • Higher costs associated with feed, housing, and labour. 
  • Intensive systems can raise concerns about animal welfare in regard to lameness.  

Hill and Upland Finishing
Overview:

  • On hill and upland areas, particularly in Scotland, Wales, and northern England, lambs are often tried to be finished on rough grazing or low-quality pastures. These areas are characterised by poor soil fertility and harsher climates. 

Key Features: 

  • Lambs graze on hardy grasses, heather, and other low-quality forage, often in extensive systems. 
  • Supplementary feeding may be used in late autumn or winter to aid finishing. 

Advantages: 

  • Utilises marginal land that is unsuitable for intensive farming. 
  • Produces lean meat with distinctive flavour, often marketed as high-quality or premium due to the extensive nature of the system. 

Challenges: 

  • Much slower growth rates due to the lower nutritional value of upland grazing. 
  • Lambs may need to be brought down to lowland pastures or finished indoors for the final stage of growth as the forage available is not enough.  

Grass and Concentrates

Overview:

  • Creep feeding is commonly used to accelerate the growth of young lambs before weaning so that they get a good start into the finishing stage. This involves providing lambs with high-energy feed that is inaccessible to ewes, which they will then continue to eat after weaning, alongside grass.  

Key Features: 

  • Creep feed consists of concentrates, allowing lambs to gain extra nutrition while still suckling. 
  • Typically used in lowland farms to enhance early growth, particularly in spring-born lambs. 

Advantages: 

  • Faster growth and earlier finishing, reducing the time lambs need on pasture. 
  • Less reliance on ewes’ milk, allowing lambs to achieve higher weaning weights. 

Challenges: 

  • Higher feed costs and additional infrastructure to manage the creep feeding system. 
  • Requires careful balancing to prevent lambs from becoming too fat early in life. 

These lamb finishing systems reflect the diverse landscapes and farming practices found across the country, from intensive lowland farms to extensive upland systems. Each system has its own advantages and challenges, depending on the resources, environment, and market requirements.

DLWG - Daily Live Weight Gain

 

DLWG stands for "Daily Live Weight Gain." It refers to the average weight gain of an animal per day. It is used to monitor the growth and health of the animal. It helps farmers assess the effectiveness of their feeding regimes and overall management practices in achieving desired growth rates.

This is a table that shows the DLWG of lambs on the different systems that we have discussed.

Poor Quality Grassland <100
Permanent Pasture 100
High Quality Grass >200
Root Crops 150-250
Ad-lib Concentrates 150-250
Grass and Concentrates 200-300

Handling of lambs

 

It is very important, not only for animal health reasons that the lambs are handled with care. If the wool is pulled or the lambs are pushed too much and bang themselves against the trailers or handling equipment it can lead to abrasions or bruising on the lamb's body.

These injuries are visible on the carcass after slaughter, and if these problems are seen the farmer is penalised due to the extra time and effort that comes with having to trim more fat off the carcass.

Hover over the box below to see further information.

Tips to prevent bruising


DO NOT:

  • Handle or move sheep by pulling their wool, handle them by holding them under their chin and the other hand directing the body
  • Let sheep get trampled when in lorries or trailers
  • Allow sheep to climb over each other in races
  • Have any sharp objects in races, trailers, or gates