IMPACTS OF DIETARY L‐THREONINE SUPPLEMENTATION ON PERFORMANCE AND INTESTINAL MORPHOLOGY OF BROILER CHICKENS DURING SUMMER TIME

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SHIRZADEGAN K.; NICKKHAH I.; JAFARI M.A.

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Journal: IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE Year:2015 | Volume:5 | Issue:2 Page(s): 431-436

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Title

IMPACTS OF DIETARY L‐THREONINE SUPPLEMENTATION ON PERFORMANCE AND INTESTINAL MORPHOLOGY OF BROILER CHICKENS DURING SUMMER TIME

Author(s)

SHIRZADEGAN K. | NICKKHAH I. | JAFARI M.A. | Issue Writer Certificate

Keywords

BROILER CHICKENSQ2

INTESTINAL MORPHOLOGYQ2

LQ2

THREONINEQ2

PERFORMANCEQ2

Abstract

The present study evaluated effects of 0.0%, 0.5%, 0.75% and 1.0% L-threonine in diet on PERFORMANCE and gastrointestinal tract development in BROILER CHICKENS during summer. From 0 to 42 days old, body weight gain was greater in 0.75% L-threonine fed birds than in 0.0% and 0.5% L-threonine fed birds (P<0.05). Moreover, in jejunum and ileum both the 0.75% and 1.0% L-threonine intake caused Longer villus height as compared to 0.0% and 0.5% L-threonine (P<0.05), but no other morphological parameters were affected by L-threonine supplementation (P>0.05). No significant differences were observed between the treatments for feed intake and feed conversion ratio during the starter, grower or whole experimental period (P>0.05). During the growth period, 0.75% L-threonine fed birds had the highest body weight gain (P<0.05). Carcass traits were not affected by treatments (P>0.05). In conclusion, supplementation of 0.75% L-threonine improved the INTESTINAL MORPHOLOGY and body weight gain of broilers under hot conditions. As well as, the higher Levels of L-threonine (1.0) percent in diet can will increased the villus height in the jejunum and ileum.

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APA: Copy

SHIRZADEGAN, K., NICKKHAH, I., & JAFARI, M.A.. (2015). IMPACTS OF DIETARY L?THREONINE SUPPLEMENTATION ON PERFORMANCE AND INTESTINAL MORPHOLOGY OF BROILER CHICKENS DURING SUMMER TIME. IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE, 5(2), 431-436. SID. https://sid.ir/paper/249849/en

Vancouver: Copy

SHIRZADEGAN K., NICKKHAH I., JAFARI M.A.. IMPACTS OF DIETARY L?THREONINE SUPPLEMENTATION ON PERFORMANCE AND INTESTINAL MORPHOLOGY OF BROILER CHICKENS DURING SUMMER TIME. IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE[Internet]. 2015;5(2):431-436. Available from: https://sid.ir/paper/249849/en

IEEE: Copy

K. SHIRZADEGAN, I. NICKKHAH, and M.A. JAFARI, “IMPACTS OF DIETARY L?THREONINE SUPPLEMENTATION ON PERFORMANCE AND INTESTINAL MORPHOLOGY OF BROILER CHICKENS DURING SUMMER TIME,” IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE, vol. 5, no. 2, pp. 431–436, 2015, [Online]. Available: https://sid.ir/paper/249849/en

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