Effect of mentha on performance, haematological and biochemical parameters in laying hens

A Rahman,E.E Gultepe,I Bayram

doi:10.4314/sajas.v51i2.10

A Rahman, E.E Gultepe + Show 1 more

Open Access

https://doi.org/10.4314/sajas.v51i2.10

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Abstract

Effects of Mentha piperita (peppermint) extract and juice on performance and immune parameters were evaluated in laying hens. A total of 252 Babcock laying hens were allocated to seven treatments with four replications of nine hens. The control hens were fed a basal diet without supplementation. Other hens were given diets supplemented with mentha extract (ME) at 50 (50ME), 100 (100ME), and 200 (200ME) mg/kg of feed or with 50 mentha juice (50MJ), 100 (100MJ) and 200 (200MJ) mg/L that was provided in the drinking water. No significant differences were detected among treatments in bodyweight, feed intake, egg mass, egg production, eggshell breaking strength, Haugh unit, and haematological and serological parameters. The ratio of gram feed to gram egg mass (feed conversion) was significantly better in the birds that received 100ME and 200ME compared with the control hens. The yolk colour index was higher in mid trial analysis (28th day). Thus, although the ME supplementation had a positive effect on feed conversion ratio and egg yolk colour at dosage rates up to 200 mg/kg, further research is needed to establish the efficacy of this herbal product and to determine the most appropriate amount to include in diets for laying hens.

Highlights

Various types of phytogenic product – such as mentha, garlic, anise, cinnamon, coriander, oregano, chili, pepper, rosemary, rosehip and thyme – may be used as additives to enhance performance and modulate gut health in poultry (Criste et al, 2017)
Phyto-additives have a positive effect on performance parameters, including egg production, egg quality (Rahimi et al, 2011; Khan et al, 2012), the immune system and antioxidant status (Gill, 2000; Abd El-Hack & Alagawany, 2015)
Dietary supplementation of peppermint leaves by up to 2% in a layer hen diet may enhance the production performance and egg quality and reduce cholesterol level (AbdelWareth & Lohakare, 2014)

Summary

Introduction

Various types of phytogenic product – such as mentha, garlic, anise, cinnamon, coriander, oregano, chili, pepper, rosemary, rosehip and thyme – may be used as additives to enhance performance and modulate gut health in poultry (Criste et al, 2017). Phyto-additives have a positive effect on performance parameters, including egg production, egg quality (Rahimi et al, 2011; Khan et al, 2012), the immune system and antioxidant status (Gill, 2000; Abd El-Hack & Alagawany, 2015). Dietary supplementation of peppermint leaves by up to 2% in a layer hen diet may enhance the production performance and egg quality and reduce cholesterol level (AbdelWareth & Lohakare, 2014). Spearmint (Mentha spicata) extract may improve egg production, egg shell thickness and yolk weight, whereas it may decrease serum total cholesterol, triglycerides and LDL concentration in laying hens, but had no effect on the immune system (Behboud et al, 2011). Pennyroyal (Mentha pulegium) powder and its extract had a positive influence on egg production performance, egg quality, blood biochemical and immunity parameters in laying hens (Paymard et al, 2013).

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