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White lupin as a protein source for layers.

B A Watkins1, L W Mirosh

  • 1Department of Animal Sciences, Washington State University, Pullman 99164-6320.

Poultry Science
|November 1, 1987
PubMed
Summary

White lupins (Lupinus albus cv. Ultra) can be a primary protein source for hens. Diets with up to 25% lupins did not affect egg production or weight, but higher levels reduced output and increased feed intake.

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Area of Science:

  • Animal Science
  • Poultry Nutrition
  • Agronomy

Background:

  • Lupinus albus cv. Ultra, a novel lupin cultivar, offers potential as a sustainable protein source in poultry diets.
  • Assessing the nutritional impact of lupins on laying hen performance is crucial for optimizing feed formulations and reducing reliance on conventional protein ingredients.

Purpose of the Study:

  • To evaluate the effects of varying inclusion levels and processing methods of Lupinus albus cv. Ultra on the performance of Single Comb White Leghorn hens.
  • To determine the optimal dietary inclusion level of lupins for productive hens without compromising key performance indicators.

Main Methods:

  • Three feeding experiments were conducted over 12, 16, and 32 weeks, respectively.
  • Hens were fed diets containing raw, autoclaved, or extruded lupins at levels ranging from 10% to 30%.
  • Key performance metrics including egg weight, egg production, feed consumption, Haugh units, and yolk color were measured.

Main Results:

  • Dietary inclusion of lupins up to 25% did not significantly impact average egg weight, egg production, or feed consumption in Experiments 1 and 2.
  • Egg production was significantly depressed at a 30% lupin inclusion level in Experiment 3.
  • Hens fed lupins consistently exhibited significantly higher yolk color compared to control groups across all experiments.

Conclusions:

  • Lupinus albus cv. Ultra can be effectively utilized as a primary protein source for laying hens.
  • Inclusion levels up to 25% are well-tolerated, with higher levels potentially impacting performance and feed intake.
  • The enhanced yolk color suggests a positive impact on egg visual quality.

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