THE EFFECT OF DIFFERENT DIETARY FAT SOURCES AND VARIOUS TYPES OF GROWTH PROMOTING ADDITIVES ON LAYING HENS PERFORMANCE AND EGG QUALITY TRAITS IN THE LATE PHASE OF PRODUCTION

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YAVARI MONA; SHARIATMADARI FARID; SHARAFI MOHSEN

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Journal: Journal of Animal Production Year:2017 | Volume:19 | Issue:2 Page(s): 479-491

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Title

THE EFFECT OF DIFFERENT DIETARY FAT SOURCES AND VARIOUS TYPES OF GROWTH PROMOTING ADDITIVES ON LAYING HENS PERFORMANCE AND EGG QUALITY TRAITS IN THE LATE PHASE OF PRODUCTION

Author(s)

YAVARI MONA | SHARIATMADARI FARID | SHARAFI MOHSEN | Issue Writer Certificate

Keywords

ANTIBIOTICQ2

EGG QUALITYQ2

FATTY ACIDQ1

PROBIOTICQ1

YELLOW GREASEQ2

Abstract

In this study, the effect of fat source and type of growth promoting additives in laying hens diets on productive performance and EGG QUALITY traits was investigated. This experiment was conducted in a (2×3) factorial experiment, 108 ninety-six week-old Hy-Line W-36 laying hens treated with two fat sources (yellow grease and fat powder) and three types of growth promoting additives (none-additive, PROBIOTIC and ANTIBIOTIC) for 12 weeks. The birds were allocated randomly to six treatments with six replicates (3 birds per replicate). Results showed that none of the performance variables (egg production rate, egg mass, average egg weight, feed intake and feed conversion ratio) were affected by the supplemental fat sources (p> 0. 05). The addition of PROBIOTIC in feed resulted in significant reductions in feed intake, egg production and egg mass as well as in yolk percent (p< 0. 05). Interaction between fat source and growth promoting additive type as well as the main effect of fat type on egg shell thickness was significant. Thus, it could be concluded that the quality of egg shell is affected by the type of fat during the late stages of production. On the other hand, it cannot be ignored that the use of supplemental PROBIOTIC reduced feed intake, egg production and egg mass.

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APA: Copy

YAVARI, MONA, SHARIATMADARI, FARID, & SHARAFI, MOHSEN. (2017). THE EFFECT OF DIFFERENT DIETARY FAT SOURCES AND VARIOUS TYPES OF GROWTH PROMOTING ADDITIVES ON LAYING HENS PERFORMANCE AND EGG QUALITY TRAITS IN THE LATE PHASE OF PRODUCTION. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), 19(2 ), 479-491. SID. https://sid.ir/paper/209137/en

Vancouver: Copy

YAVARI MONA, SHARIATMADARI FARID, SHARAFI MOHSEN. THE EFFECT OF DIFFERENT DIETARY FAT SOURCES AND VARIOUS TYPES OF GROWTH PROMOTING ADDITIVES ON LAYING HENS PERFORMANCE AND EGG QUALITY TRAITS IN THE LATE PHASE OF PRODUCTION. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE)[Internet]. 2017;19(2 ):479-491. Available from: https://sid.ir/paper/209137/en

IEEE: Copy

MONA YAVARI, FARID SHARIATMADARI, and MOHSEN SHARAFI, “THE EFFECT OF DIFFERENT DIETARY FAT SOURCES AND VARIOUS TYPES OF GROWTH PROMOTING ADDITIVES ON LAYING HENS PERFORMANCE AND EGG QUALITY TRAITS IN THE LATE PHASE OF PRODUCTION,” JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), vol. 19, no. 2 , pp. 479–491, 2017, [Online]. Available: https://sid.ir/paper/209137/en

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