Barley or Wheat or Soybean Meal Hi ...

Barley or Wheat or Soybean Meal High Levels in the Diet of Laying Hens

Barley or Wheat or Soybean Meal High Levels in the Diet of  Laying Hens

Wheat contains variable quantities of xylan, which is poorly digested and results in wet viscous excreta together with poor digestibility. (5)

While wheat is much higher in protein content compared to corn and provides only slightly less energy. Wheat contains about 5—8 % of pentosans, which can cause problems with digesta viscosity, leading to reduced overall diet digestibility and also wet manure. (5)

Birds do not produce adequate quantities of xylanase enzymes, and so these polymers increase the viscosity of the digesta. (5)

This problem can be overcome by using synthetic xylanase enzymes. (5)

Observed Clinical Signs Happenings

Droppings

  • Wet viscous excreta
  • Wet Manure

Diet or Feed Changes (Recent Feed delivery, Recent formulation /diet, Other silo or improper storage, another feed brand)

  • While wheat is much higher in protein content compared to corn, and provide only slightly less energy.
  • Wheat contains about 5—8 % of pentosans, which can cause problems with digesta viscosity, leading to reduced overall diet digestibility and also wet manure
  • The problem of wet viscous excreta and poor digestibility can be overcome by using synthetic xylanase enzymes

Wheat High Levels in the Diet of Laying Hens DOES NOT show or exhibit or manifest any of the following clinical signs happenings:

  • Egg drop
  • Mortality above the standard
  • Visibly sick birds
  • Flock behaviour activity change
  • Respiratory abnormalities
  • Neurological Nervous
  • Lameness or unusual movements, incoordination, reluctance to move
  • Eyes abnormalities
  • Head, Comb, Wattles, Face, Nostrils, Sinuses, Mount, Beak, Earlobes, abnormalities (except eyes)
  • Body Parts (Neck, wings, breast, abdomen, shanks, legs, hocks, feet, joints, vent, and skin, abnormalities), skinny body, retarded growth, weight depression
  • Feed Consumption Changes
  • Feathers abnormalities
  • Shell quality
  • Internal Egg quality
Causing Agents
Wheat contains about 5-8 % of pentosans which cause problems with digesta viscosity, leading to reduced overall diet digestibility and also wet manure. Birds do not produce adequate quantities of xilanase enzymes, and so these polymers increased the viscosity of digesta
Affected Systems/Organs
Digestive Tract
Spread
N/A
Mainly Affects
Digestibility. Viscous excreta, wet litter/manure. Performance
Solution
Using xylanase enzymes in the diet . Adequate levels i the diet
Suggested Actions
  • Technical assistance recommended
  • Can be managed with feed additives, off-the-shelf medications

Impact on Egg quality

0

Impact on Liveability

0


Impact on Production

0

Overall Economic Impact

1



Y.M. Saif.2008.Disease of Poultry. 12th Edition.

Mark Pattison, Paul F. McMullin, Janet M. Bradbury. Dennis J. Alexander. 2008. Poultry Diseases. 6th Edition.

Paul McMullin. 2004. A pocket Guide to Poultry Health and Disease. First Edition.

Steven Leeson, John D. Summers. 2008. Commercial Poultry Nutrition. Third Edition. page 16

Donald D. Bell, Williams D. Weaver. 2009.  Commercial Chicken Meat and Egg Production. Fifth Edition.

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