- Number of finishers = 100 heads
- Starting weight = 20 kg LW
- Market weight = 85 kg LW
- Feed given in kg = 1,8102 kg
FCR = 18,102 kg feeds / (100 heads x 85kg LW) – (100 heads x 20 kg LW)
FCR = 18,102 kg feeds / 6,500 kg weight gained
FCR = 2.78 (This means that the pig needs 2.78 kg of feed to convert into 1 kg gain in weight.)
Average Feed Consumption/Pig/Day
This Is an assessment of the level of feeding of the finishing pigs- This b Important especially when ADG and FCR fail to be in the target range, the average feed consumption/pig/day may provide an indication of the possible causes.
- Average feeding level with poor ADG and FCR oftentimes point to poor quality feeds and/or management aspects (health, housing, ventilation).
- Low feeding level generally leads to poor ADG and FCR. Thus, a low feed consumption per day is caused by low palatability and poor management practices.
- When the feed consumption per day is too high compared to the ADG obtained, disorders In the digestive system, poor digestability of the feeds or tow nutritional value are likely to be the cause. A high feeding level may also cause a relatively high fat disposition, which usually leads to an average ADG but poor FCR.
Feed consumption/pig/day = Total feed consumption / Total finishing days
- Total feed consumption = 18,102 kg
- Total finishing days = 11,480 days
Feed consumption/pig/day = 18,102 kg / 11,480 days finishing days
Feed consumption/pig/day= 1.58 kg/pig/day
For pigs finished from 20 to 90 kgs., the average consumption ranges from 1.7 to 2.0 kgs/pig/day for restricted feeding and 1.9 to 2.1 kgs for ad libitum feeding.
Average Feed Cost/Kilogram Gain
This can be a useful information in comparing several feeds and/or non-conventional feeds or feeds with different prices. Together with ADG, it indicates the value of the feeds compared to the quality.
Feed cost/kg gain = Total feed cost / Gain in weight
- Gain in wt: 8500 kg LW – 2000 kg LW = 6,500 kg gain
- Starter feed: P 13/kg x 3570 kgs = P 46,410.00
- Grower feed: P 11.00/kg x 9240 kgs =101,640.00
- Finisher feed: P 10.50/kg x 5992 kgs = 62,916.00
Another aim in finisher production is to Incur the lowest possible mortality. Therefore, h is important to determine the cost of mortality to assess how much was lost.
Mortality percentage = Number of dead pigs per batch / Total number of pigs per batch
- Number of pig/batch – 100 pigs
- Number of dead pigs – 3
Mortality % = 3 dead pigs / 100 pigs x 100
Mortality = 3% (This figure is needed in computing the cost mortality or financial loss)
Cost of mortality = number of pigs x (cost of 1 weaner + 1/2 feed cost per pig)
- Number of dead pigs – 3
- Cost of weaner (20 kg LW) – P1,850.00
- Cost of feed/finisher – P2,036.10
Cost of mortality = 3 dead pigs [P1,850.00 + 1/2 (P2,036.10)]
Cost of mortality = P8,604.15
In computing the feed profit, only two main expenses are considered: cost of feeds and weaners. These two expenses generally account to 85-90% of the total cost thus, assessment of the net profit is made easy.
Feed Profit = Proceeds/or sale of finishers – (Total cost of weaners + Total cost of feeds)
- Selling price/finisher: 85 kg LW x 55 = P4,675.00
- Total Proceeds: P4,675 x 97 market pigs = P453,475.00
- Total cost of feed: P2,036.10 x 100 pigs = P203,610.00
- Total cost of weaners: P1,850.00 x 100 pigs = P185,000.00
Feed Profit = P453,475.00 – (P203,610 + 185,000)
Feed Profit = P64,865.00
Feed Profit/pig sold = P64,865.00/97 pigs
Feed Profit/pig sold = P668.71
Rounds Per Year
Rounds per year refers to the efficiency with which the capacity of the finishing units are used. Factors affecting the number of rounds per year:
- growth rate (ADG)
- prevailing liveweights at start and marketing
- inter-batch periods for cleaning, disinfection, and restocking
- stocking system
The capacity of the units can be expressed either as number of pig places or as the average number of pigs on hand (stock). The number of pig places is fixed while the average stock vary depending on.
- occupancy rate of the units/pens
- mortality rate
- inter-batch periods (the time lapse between delivery of slaughter pigs and arrival of the next batch of weaners)
- stocking system
Rounds per year = 365 x ADG in kgs / Avg. weight increase of marketed pig
- Average Daily Gain = 566 grams or 0.556 kg
- Average weight increase = 65 kg
Rounds per year = 365 x 0.566 / 65 kg
Rounds per year = 3.17 rounds (This means that 3 complete finishing rounds in a year can be done!)
source: International Training Center on Pig Husbandry (ITCPH), Marawoy, Lipa City