Effects of Different Levels of Pea in Diets on Performance, Egg Quality and Organ Indexes of Layers

  • SHAO Caimei ,
  • ZHANG Xin ,
  • GUO Yaoqi ,
  • LI Yihong ,
  • ZHANG Weihui ,
  • WANG Yulin
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  • Liaoning Wellhope Agri-Tech Joint Stock Co., Ltd., Shenyang 110866, China

Received date: 2019-05-28

  Online published: 2019-12-13

Abstract

This experiment was conducted to study the effects of different level of peas in diets on performance, egg quality, feces state and organ indexes of layers. A total of 1 620 healthy Hyline brown layers of 355-day-old with similar body weight were randomly assigned to 3 groups with 6 replicates per group and 90 layers per replicate. Layers in control group were fed a basal diet, and the others in experimental groups were fed the experimental diets of 15% pea replaced 7.5% corn and 7.5% soybean meal (15% pea group), and 30% pea replaced 15% corn and 15% soybean meal (30% pea group), respectively. The experiment lasted for 60 days and feed intake 125 g/d per layer. The results showed as follows:1) laying rate and egg production of layers in 30% pea group were significantly lower than those in control group and 15% pea group (P<0.05), but the ratio of feed to egg was significantly higher than that in control group and 15% pea group (P<0.05). There was significant difference in average egg weight among groups (P<0.05), average egg weight was significantly decreased with the increasing of pea supplemented level (P<0.05). There was no significant difference in body weight among groups (P>0.05), body weight loss in 15% pea group was lower than that in control group, and body weight loss in 30% pea group was higher than that in control group. 2) There were no significant differences in eggshell thickness, eggshell strength, eggshell ratio, broken egg rate, egg yolk ratio and egg yolk index of layers among groups (P>0.05). Haugh unit and albumen height in 30% pea group were significantly lower than those in control group and 15% pea group (P<0.05). Egg yolk color in 30% pea group was significantly higher than that in control group and 15% pea group (P<0.05), and egg yolk color in 15% pea group was significantly higher than that in control group (P<0.05). Eggshell color in 15% pea group was better than that in control group, and eggshell color in 30% pea group was the worst. 3) Feces state of layers in 15% pea group was significantly better than that in 30% pea group in the forth feces grade (P<0.05). 4) Duodenum index of layers in 30% pea group was significantly higher than that in control group (P<0.05), and gastrointestinal index, intestine relative length, relative length and weight of oviduct in 15% and 30% pea groups were higher than those in control group. In summary, adding 15% pea in diets has no significant effects on performance and egg quality of layers, and is better for fecal formation, and adding 30% pea in diets has significant effect on performance of layers, decrease egg quality, and is bad for fecal formation. The pea is beneficial to the growth of gastrointestinal tract and oviduct, and it is suggested that equivalent corn and soybean meal is replaced with 15% pea in diets of layers.

Cite this article

SHAO Caimei , ZHANG Xin , GUO Yaoqi , LI Yihong , ZHANG Weihui , WANG Yulin . Effects of Different Levels of Pea in Diets on Performance, Egg Quality and Organ Indexes of Layers[J]. Chinese Journal of Animal Nutrition, 2019 , 31(12) : 5750 -5759 . DOI: 10.3969/j.issn.1006-267x.2019.12.041

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