Sunday, June 12, 2011

Raised Floor Poultry Farm

Design criteria of the raised floor poultry house :

1. Minimise level of  ammonia gas.
2. Minimise poor litter related diseases.
3. Prevent birds' breast blister, swollen and damaged feet.
4. Better health condition of the birds.
5. Better welfare of the birds.

Performances :

Batch  # : 01
Month   : Nov 2010
Rearing space : 45' x 400'
Density: 0.82 sq f/bird
Capacity : 22,000 bird per flock
Average weight : 2.47 Kg
Bird age : 38 days
Breed : Ross 308
FCR : 1.57
Mortality : 1.79%

Batch  # : 02
Month   : Jan 2011
Rearing space : 45' x 400'
Density: 0.765 sq f/bird
Capacity : 23,500 bird per flock
Average weight : 2.56 Kg
Bird age : 44 days
Breed : Ross
FCR : 1.66
Mortality : 3.68%

Batch  # : 03
Month   : Mac 2011
Rearing space : 45' x 400'
Density: 0.75 sq f/bird
Capacity : 24,000 bird per flock
Average weight : 2.66 Kg
Bird age : 40 days
Breed : Ross
FCR : 1.64
Mortality : 2.81%

Tuesday, January 11, 2011

Design story of Gowell L-Grill Pan Feeder

The idea of making new L-Grill Pan Feeder was basically came from the farmers. As there are more and more farmers practise feed restriction program in order to achieve better "feed convertion rate" of the broiler production. Feed restriction means totally stop supply of feed to the pans for a certain period of time. During these period of time, birds are resting and sleeping. This will give chicks to have ample time to fully develop its internal organs and skeletal. Some of the farmers prefer to do it during the noon time where the hottest period of the day is. Others prefer to do it in evening time that we used to call it as 'lighting control".
Feed control will create one problem that is when the pan feeding system starts operating back or when the lighting is turned on, hungry and aggressive birds push each other for feed. Birds are being pushed forward to the top of the trough where normal grill design may trap the birds. Gowell L-Grill can avoid this problem and help farmers to improve their productivity. A lot of farmers tried L-grill pan and recognised this benefit hence decided to change the X-5's grill to L-grill's grill since they are interchangeable.
And the product improvement doesn't stop here. We have further improved the height of the Pan. The height of new L-grill pan was being reduced. Why? Because, we have noticed that the supply of bedding materials is becoming less and less. One of the main reason is bedding materials are being used for many other purposes. The cost of the bedding material is therefore always in the upward tread. In order to overcome this problem, raised floor rearing method has been introduced where bedding material is not being used or used with very little amount. Whereas, without using bedding material poults or day-o-chicks have difficulty to eat at the normal pan height. Hence you need to do manual feeding for 3 to 4 day before introducing the auto feeding. As a result of the improved height of L-grill pan feeder, you have all these problem solved.

Thursday, December 30, 2010

How dust can affect air flow inside the tunnel ventilation house?

Accumulated dust on the plastic shuttle of the ventilation fans will definitely affect the air flow of the tunnel ventilation poultry house. But to what extent?
We have made a study by leaving the plastic shuttle unattended for 36days. Dust accumulated about 3 to 5mm thick on the edges of the shuttles. The shuttles were no long able to open fully as its used to be. The wind speed measured before flock placement was average 2.9 m/s. Whereas after 36days of the unattended condition, the wind speed reading was dropped to 2.2 m/s. The average wind flow was dropped by 25%. To confirm the dust effect on wind speed, we cleaned all the plastic shuttle and measured the reading again. The outcome is, the wind speed immediately back to normal that was 2.9 m/s.
Therefore, in order to have a consistent air flow for your tunnel ventilation house, weekly cleaning of  plastic shuttles must not be omitted!

Typical worst example of dust full plastic shuttle.

After cleaning condition.

How pan feeding system works?

Poultry pan feeding system is an automatic feeding equipment which makes feeding work much easier, consistent and less labour dependant.
A pan feeding system is a series of pan feeders that are attached to a galvanised tube with an auger inside driven by a gear motor to convey feed along the tube and distribute to every pan which is attached to it. The length of the galvanised tube is in 10 feet or 12 feet long. One piece of tube can be attached 2 to 4 pan feeders. It can be jointed one after the other up to a maximum  length of 500 feet which we called it a 'line'. The number of feeding line need to be installed is depended on the width of your poultry house.  To complete the line, the begining of line is attached with a hopper to receive feed form the feed silo through feed transportation auger and the end of line is attached with the gear motor. At the end of line, there is a control pan attached before the gear motor to stop the auger from running when feed is reached to the end of line. When the birds eat, the pan automatically refills. The height of the pan can be adjusted to suit the age of the bird by mean of winch.

Monitoring temperature and humidity condition in tunnel ventilation house

To begin the process of monitoring, we recorded down the actual temperature and humidity condition inside and outside of the tunnel ventilation poultry house for future study purposes.
  1. Outside the house, temperature reading was 31.8 degree C and relative humidity reading was 57.8%.
  2. Outside the house at cooling pad area, temperature reading was 31.8 degree C and relative humidity reading was 57.3%.
  3. Inside the house at cooling pad area, cooling pad temperature reading was 22.8 degree C, inside room temperature reading was 26.5 degree C and relative humidity reading was 77.2%.
  4. Inside the house at middle of the house, room temperature reading was 27.8 degree C and relative humidty reading was 77.2%.
  5. Controller temperature shown 27.7 degree C.
  6. Outside roof temperture reading was  35.7 degree C (roof material is PVC 2mm thick).
  7. Inside drop ceiling temperature reading was 29.7 degree C(ceiling material is metal deck).

At the time we measured these readings, the birds were 37 days. 10 Fans were running in full swing. Wind speed was measured average 2.95 m/s. The cooling pad pump was running on 2 mins on-time and 6 mins off-time. The variation of room temperature was between 27.7 to 28.9 degree C. The humidity were controlled very well, as we can see that the related humidity at the cooling pad area and at the middle of the house were almost the same reading, that was RH 77.2%. This showed the litter moisture was very less and so as the ammonia level. We can presume this poultry production was maintained  at an optimum condition during that period of time.

Saturday, November 27, 2010

Pan feeding system

Pristine's Gowell pan feeding products are designed for easy handling and reliable to be used as an automatic feeding system in poultry farms.
We offer 3 different types of Pan feeder for broiler feeding system : - 
a) Gowell X14 : the most traditional model with 14 spoke grill, sharp "V" pan and large flood feed windows.
b) Gowell X5 : equipped with 5 spoke grill, low profile pan and large flood food windows. 
c) Gowell L grill : equipped with 5 recess grill, low profile pan and large flood food windows.

Advantages and Benefits

  • Low pan edge allows chicks reach feed easily.
  • Uniform distribution of feed to all the pans.
  • Easy to adjust feed volume as desired.
  • Easy to set feed level when converting from chick to grower stages.
  • Allow you to minimize feed wastage regardless of the age of the bird.
  • Pan can swings and turns freely to minimize bruising and injury to the birds.
  • Pan can be washed and drained with ease.
  • Pan is made from high quality UV stabilized plastic.
  • Flexible choice of Pan, grill and drop tube combination are available.

Feeders and Drinkers arrangement for day-old-chick

Shown one example of the Feeders and Drinkers arrangement for day-old-chick in tunnel ventilation farm.

This farm was using chick trays and chick feeders for feeding during brooding period of chick stage. Chick trays and feeders were arranged and spread evenly all over the brooding zone for easy accessibility. The ratio of Chick tray plus feeder to poult was about 1 : 80. Poults were more prefer to eat on the trays after poults placement. Only 2 - 3 hours later, more poults moved toward to chick feeder. This maybe because of feed could be seen easily on the tray then in the feeder. Whereas, poults started drinking from both nipple drinkers and chick drinkers as soon as placed in the house. Although nipple drinking system was being used on the 1st day, auto chick drinkers were also added at a ratio of 1 : 100 poult for about 5 - 7 days.  The room temperature in the brooding zone was about 34 - 35OC. With this optimum environmental condition, poults were basically very active and able to move around and look for food and water after flock placement.