Feed formulation using phytase in laying hen diets

Supplemental wheat bran and microbial phytase could replace inorganic phosphorus in laying hen diets

An experiment was conducted to determine effects of wheat bran (WB) phytase on production performance and nutrient utilization in laying hens. Three hundred and seventy-five Lohmann hens at 32 weeks of age were randomly allotted to treatments of fifteen hens per pen with five pens per treatment. Five experimental diets were formulated. Diet one (control) contained 0.19% inorganic phosphate (Pi)...

Dried distillers grains with solubles in laying hen diets.

A study was conducted to test the inclusion rate of corn dried distillers grains with solubles (DDGS) in laying hen diets on egg production (EP) responses for a full production cycle. A total of 288 Bovan Single Comb White Leghorn laying hens were fed diets containing 0, 5, 10, 15, 20, or 25% DDGS from 24 to 46 wk (phase 1) and 47 to 76 wk (phase 2) of age. The diets were formulated to be isoca...

The effect of using different levels of shrimp meal in laying hen diets.

The shrimp industry in Central America has grown significantly. Much waste is generated by this industry because of the high percentage of shrimp heads, exoskeletons, and soluble components lost during processing. The objective of this study was to measure the effect of substituting different levels of shrimp meal (SM) for soybean meal (SBM) in layer diets. A control corn-soybean layer diet and...

Lipid supplementation of laying hen diets deficient in protein and sulphur amino acids

Evaluation of limit feeding low - energy diets for a non - feed with - drawal laying hen molt program

An experiment was conducted using 504 Hy-Line W-36 hens (69 wk of age) to evaluate two low-energy non-feed withdrawal molt diets, each fed at three different rates. Treatment 1 consisted of feed withdrawal for 10 d (10-d fast) followed by feeding a 16% CP corn-soybean meal diet for 18 d. Treatment 2 consumed a 47% corn and 47% wheat middlings (C:WM) diet fed ad libitum for 28 d. Treatment 3 rec...