Iranian Journal of animal Science

Iranian Journal of animal Science

The Effect of Rosemary Hydro-alcoholic (Rosmarinus Officinalis L.) Extract on Performance and Egg Quality in Laying Hens

Document Type : Research Paper

Authors
Heydar Zarghi 1
Abolghasem Golian 2
Hassan Kermanshahi 2
1 Assistant Professor, Department of Animal Science, College of Agriculture, Ferdowsi University of Mashhad, Respectively
2 Professor, Department of Animal Science, College of Agriculture, Ferdowsi University of Mashhad, Respectively
10.22059/ijas.2015.54585
Abstract
This experiment was conducted to evaluate the effects using of different levels of rosemary hydro-alcoholic extract (Rosmarinus Officinalis L.) on productive performance and egg quality indicators, in laying hens. The levels of rosemary hydro-alcoholic extract in this experiment were 0, 500, 1000 and 1500ppm. This experiment was conducted in a Blok Completely Randomized Design with 160 “hy-line-W36” laying hens in 4 treatments and 4 replicate (with 10 hens in each replicate) from 29 until 38 weeks of age. The results showed that the using of different levels of rosemary hydro-alcoholic extract had significantly effects on some parameters of performance and egg traits in laying hens (p<0.05). Hence, the highest rate of egg production and egg mass (g/b/d) and the lowest feed conversion ratio were belong to birds fed diets containing 1000ppm rosemary hydro-alcoholic extract. Also the albumen quality (HU) of eggs maintained for 21 days at 4 ° C in the resulting eggs from the birds that fed with diets containing rosemary hydro-alcoholic extract was higher than birds fed the control diet. The overall results showed that the additions of rosemary hydro-alcoholic extract in the diet of laying hens lead to improving performance and maintaining egg quality during storage.
Keywords
laying hens
rosemary hydro-alcoholic extract
performance
egg quality

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  • Receive Date 16 August 2014
  • Revise Date 02 February 2015
  • Accept Date 03 February 2015