RECYCLE EGG WASH WATER
Egg wash water can be recycled after filtration through a bed of zeolite granules to remove suspended solids and bacteria (e.g. E. Coli, etc.).
Taken from Saskatchewan Poultry Pointers September 1990
TESTING : Chapter VIII; Using Zeolites in Agriculture
Frederick A. Mumpton, Department of the Earth Sciences,
State University College,
Brockport, NY 14420, USA
Using clinoptilolite from the Itaya r-mine, Yamagata Prefecture, and mondenite from Karawago, Miyagi Prefecture, Onagi (67) found that Leghorn chickens required less food and water and still gained as much weight in a 2-week trial as birds receiving a control diet. Feed efficiency values (FEV)l were markedly higher at all levels of zeolite substitution; feedstuffs containing 10 percent zeolite gave rise to efficiencies more than 20 percent greater than those of normal rations(table 1).
Adverse effects on the health or vitality of the birds were not noted, and the droppings of groups receiving zeolite diets contained up to 25 percent less moisture than those of control groups, after a 1 Weight gain/feed intake, excluding zeolite, 12-day drying period, making them considerably easier to handle.
Broiler chickens fed a diet of 5 percent clinoptilite from the Hector, CA, deposit gained slightly less weight over a 2-month period than birds receiving a normal diet, but average FEVS were noticeably higher (table 5) (6). Perhaps of greater significance is the fact that none of the 48 test birds on the zeolite diet died during the experiment, while 3 on the control diet and 2 on the control diet supplemented with antibiotics succumbed.
In addition to an apparent feed-efficiency increase of 4 to 5 percent, the presence of zeolite in the diet appears to have had a favorable effect on the mortality of the birds.
Hayhurst and Willard (27) confirmed many of Onagi’s observations and reported small increases in FEV for Leghorn roosters over a 40-day period, especially during the first 10 days. The birds were fed a diet containing 7.5 percent clinoptilolite crushed and mixed directly with the normal rations. Feces were noticeably dryer and less odoriferous. Unfortunately, only 17 birds were used in the study and extensive statistical evaluation of the results could not be made.