1. II Yumurta Zirvesi 5 – 8 Kasim 2015 Belek / Antalya
NutriOpt split-feeding system Optimal supply of nutrients to enhance the persistency
II Yumurta Zirvesi 5 – 8 Kasim 2015
Belek / Antalya
Felipe Sánchez
Trouw Nutrition Application & Solution Center

2. What is NutriOpt split-feeding ?
A feed system to optimise egg production.
Provide a more precise supply of nutrients to meet with the requirements of the specific phases of egg formation.
Hens are fed two different diets per day:
Morning diet: meets the requirements for egg production.
Afternoon diet: meets the requirements for eggshell formation.

3. NutriOpt split-feeding – Benefits
Improve eggshell quality.
More persistency and saleable eggs ( +2 eggs/ hen).
Reduction of feed cost ( - 6 € / MT feed).
Reduce the excretion of nutrients by faeces.

4. NutriOpt split-feeding – Concept
Different formation phases of the egg
Feed intake during the day
According to egg formation process
Nutritional requirements of laying hens
In relation to egg formation process

5. Different formation phases of the egg
30 minutes after the current oviposition the next ovulation occurs.
During the first 3h 30min the white is produced.
After forming shell membranes, the eggshell begins to be formed => Ca deposition (20 hours).
Hens lay > 90% of their eggs during the morning.
Interval between ovipositions => 24±1 hours.
Adapted from Etches, 1986, Leeson and Summers, 1978, Larbier and Leclercq, 1992, Keshavarz, 1998).

6. Feed intake during the day
According to egg formation process
40% during the morning
60% during the afternoon
Feed intake patterns are different
Adapted from Keshavarz, 1998)

7. Nutritional requirements of laying hens
In relation to egg formation process
When laying hens are able to select nutrients:
Laying hens adapt their nutrient intake depending on time egg formation phase
8% less Energy Intake
11% less CP intake
26% less Ca intake
Excess
Deficiency
Choice feeding Single feed
Adapted from Chah, 1972

8. Trouw Nutrition R+D 9 trials ( 2005 – 2012) performed focused on:
Determine optimal nutrient levels in the morning and afternoon diets.
Demonstrate the benefits obtained with NutriOpt split-feeding :
Improve the persistency, more saleable eggs.
=> improve eggshell quality.
Feed cost savings.
Reduce the excretion of nutrients.

10. Demonstrate the benefits obtained with NutriOpt split-feeding

11. Improves the eggshell quality (PPI-34; 37; 38; 40)
Treatments (PPI-38)
Eggshell weight,g
Eggshell thickness,mm
SWUSA, mg/cm2
Single feed
5.75b
0.372b
80.5b
Split Feeding
5.84a
0.376a
81.3a
Probability
0.0089
0.0736
0.0989
Results of PPI-40
Increase eggshell thickness, eggshell weight, SWUSA

12. Improves the persistency, more saleable eggs (PPI-37)
Feed
Eggs production, %
Saleable eggs production, %
Single feed
(91-94 weeks)
73.17
66.74
Split-Feeding
(95-98 weeks)
72.23
69.26
Split-Feeding increases the number of sellable eggs by reducing the amount of broken and shell-less eggs.

13. Reduction of the amount of nutrients excreted
↓5%

15. NutriOpt split-feeding implementation
Canadá
China 2014
Turkey
Guatemala
Colombia
India 2014

16. NutriOpt split-feeding - Summary
NutriOpt split-feeding brings the optimal supply of nutrients to meet the needs of hens in the egg formation process .
Brings a more profitable and sustainable egg production, with a lower production cost.
These benefits can be achieved easily with Trouw Nutrition´s NutriOpt system, utilizing all the knowledge from R&D findings.