Effects of feeding different levels of low crude protein diets with different levels of amino acids supplementation on layer hen performance

Anjas Asmara Samsudin, . and Loh T. C., . and Rosfarizan Mohamad, . and Tenesa M., . and Foo H. L., . and Raha A. R., . Effects of feeding different levels of low crude protein diets with different levels of amino acids supplementation on layer hen performance. pp. 543-555. ISSN 1511-3701

The use of synthetic amino acids (methionine lysine threonine) makes the formulation of diets with minimum levels of crude protein possible. The objective of this study was to determine the effects of low crude protein diet with amino acids supplementation on the performance egg production small intestine villus height and faecal LAB and ENT count in laying hens. A total of 144 16-week old layer hens of Hisex brown were assigned to four dietary treatments: 17.5 CP (control); (ii) 17.5 CP; (iii) 17 CP; and (iv) 16.5 CP supplemented with amino acids. Treatment group supplemented 17 CP was significantly higher (P0.05) in egg production than other groups. Nonetheless there were no significant differences (P0.05) in egg quality. Results showed significant differences (P0.05) in both villi height and crypt depth in duodenum jejunum and ileum. The treatment supplemented with 17 CP showed a significant reduction (P0.05) in faecal pH compared to the other groups. There was a significant different (P0.05) in LAB and ENT count and LAB/ENT ratio among the dietary treatments. In conclusion 17 CP treatment supplemented with amino acids demonstrated the best effects in improving the hens egg production small intestine villus height and even promoting beneficial effects of faecal microflora.

Full text available from: Official URL: http://www.pertanika2.upm.edu.my/Pertanika%20PAPER...

Abstract

The use of synthetic amino acids (methionine lysine threonine) makes the formulation of diets with minimum levels of crude protein possible. The objective of this study was to determine the effects of low crude protein diet with amino acids supplementation on the performance egg production small intestine villus height and faecal LAB and ENT count in laying hens. A total of 144 16-week old layer hens of Hisex brown were assigned to four dietary treatments: 17.5 CP (control); (ii) 17.5 CP; (iii) 17 CP; and (iv) 16.5 CP supplemented with amino acids. Treatment group supplemented 17 CP was significantly higher (P0.05) in egg production than other groups. Nonetheless there were no significant differences (P0.05) in egg quality. Results showed significant differences (P0.05) in both villi height and crypt depth in duodenum jejunum and ileum. The treatment supplemented with 17 CP showed a significant reduction (P0.05) in faecal pH compared to the other groups. There was a significant different (P0.05) in LAB and ENT count and LAB/ENT ratio among the dietary treatments. In conclusion 17 CP treatment supplemented with amino acids demonstrated the best effects in improving the hens egg production small intestine villus height and even promoting beneficial effects of faecal microflora.

[error in script]

Item Type:	Article
AGROVOC Term:	Feeding
AGROVOC Term:	Crude protein
AGROVOC Term:	Amino acids
AGROVOC Term:	Food supplementation
AGROVOC Term:	Threonine
AGROVOC Term:	Lysine
AGROVOC Term:	Methionine
AGROVOC Term:	Egg production
AGROVOC Term:	Small intestine
AGROVOC Term:	Microflora
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	28 Apr 2025 00:41
URI:	http://webagris.upm.edu.my/id/eprint/22937

Actions (login required)

View Item