Comparison of the Growth Performance and Carcass Characteristics of Two Slow-Growing Broiler Genotypes Fed Diets Supplemented with Dry Oregano (Origanum vulgare L.) or Lemon Balm (Melissa officinalis L.) Leaves under the Organic System

Abstract

SummaryThis study was conducted to determine the growth performance and carcass characteristics of two slow-growing broiler genotypes (Hubbard S757 and Hubbard Grey Barred JA) fed diets supplemented with dry oregano (Origanum vulgare L. or lemon balm leaves (Melissa officinalis L.) as growth promoter source under an organic housing system. In this study 240 chicks (mixed-sex) were allocated randomly into 4 experimental groups according to a 2 x 2 factorial arrangement for 2 broiler genotypes and 2 diets. The effects of dry herb leaves and genotype x herb leaves interaction on studied parameters were not significant at all weeks of age (P>0.05), except neck (%). Body weight , body weight gain, feed efficiency, carcass weight and yield, leg weight and yield, breast weight and yield, back weight and yield, edible giblets weight and yield of Hubbard S757 genotype were higher (P<0.05) than those of Hubbard Grey Barred JA genotype. The female breast (P<0.01) and edible giblets yield (P<0.05) were superior to those of males. These results show that herb leaves used as a growth promoter source under organic housing system did not affect the studied parameters and that in terms of these parameters, and subsequent Hubbard S757 genotype were superior to Hubbard Grey Barred JA genotype. Keywords: Organic system, Slow growing chicken, Growing rate, Herb leaves, Carcass traits Organik Sistemde Kuru Kekik (Origanum vulgare L.) ve Melisa (Melissa officinalis L.) Katkılı Yemlerle Beslenen Yavaş Gelişen İki Etlik Piliç Genotipinin Büyüme Performansı ve Karkas Özelliklerinin Karşılaştırılması ÖzetBu araştırma, organik sisteminde yavaş gelişen Hubbard S757 ve Hubbard Gri çubuklu JA etlik piliçlerin; diyetlerine kuru kekik (Origanum vulgare L.) ve oğul otu (Melissa officinalis L.) yaprakları ilave edilmesinin performans ve karkas özelliklerine etkisini saptamak amacıyla yürütülmüştür. Denemede toplam 240 adet günlük etlik civciv (karışık cinsiyet) 2 genotip, 2 diyet ve 3 tekerrürlü olarak faktöriyel deneme deseninde rastgele 4 gruba dağıtılmıştır. Boyun randımanı hariç bütün haftalarda araştırmadaki parametreler üzerine bitki yaprakları ve bitki yaprakları ile genotip interaksiyonunun etkileri gözlenmemiştir (P>0.05). Hubbard S757 genotipinin canlı ağırlık, canlı ağırlık artışı, yemden yararlanma, karkas ağırlığı ve randımanı, but ağırlığı ve randımanı, göğüs ağırlığı ve randımanı, sırt ağırlığı ve randımanı, yenilebilir iç organ ağırlığı ve randımanı Hubbard gri çubuklu JA genotipindekilerden yüksek bulunmuştur (P<0.05). Dişilerin oransal göğüs parçası (P<0.01) ve yenilebilir iç organları (P<0.05) erkeklerinkinden yüksek olmuştur. Bu araştırmanın sonucunda, büyümeyi teşvik edici olarak kullanılan bitki yapraklarının ele alınan özelliklere etkisi saptanmamıştır ve bu parametreler bakımından Hubbard S757 genotipi Hubbard gri çubuklu JA genotipinden üstün bulunmuştur.

The welfare of slow growing broiler genotypes reared in organic system

“…Birds were fed a three-phase organic diet ad-libitum: a starter diet (197 g crude protein (CP)/kg and 13.00 MJ of metabolizable energy (ME) per kg of diet) from 0 to 28 days; a grower diet (201 g/kg CP and 12.72 MJ of ME per kg of diet) from 29 to 81 days and a fi nisher diet (180 g/kg CP and 12.91 MJ of ME per kg of diet) from 82 to 98 days. Creating artifi cial poultry pasture, Lotus corniculatus (50%) and Bromus inermis (50%) are used by mixing (Eleroğlu et al, 2014a).…”

Effect of Dietary Inclusion of Lemon Balm (<i>Melissa Officinalis </i>L.) Extract on Performance, Gut Microflora, Blood Parameters, Immunity and Carcass Traits of Broilers

“…The use of LB as feed additive in broiler diet, in order to improve meat quality (Marcinčák et al, 2011a, b) or health, and to substitute antibiotics as growth promoter has been recently reported in few studies, even in organic poultry production (Eleroğlu et al, 2013(Eleroğlu et al, , 2014. A higher relative weight of leg and breast muscles and polyunsaturated fatty acids percentage in meat were observed in broilers supplemented with LB extract by Marcinčáková et al (2011a) confirming its antioxidant activity.…”

“…The major active compounds present on commercial LB plants are flavonoids such as gallic acid, catechin, chlorogenic acid, caffeic acid, ellagic acid, epicatechin, rutin and quercetin, having antimicrobial and strong antioxidant activities ( Mimica-Dukic et al , 2004 ; Pereira et al , 2014 ). The use of LB as feed additive in broiler diet, in order to improve meat quality ( Marcinčak et al , 2011a , b ) or health, and to substitute antibiotics as growth promoter has been recently reported in few studies, even in organic poultry production ( Eleroğlu et al , 2013 , 2014 ). A higher relative weight of leg and breast muscles and polyunsaturated fatty acids percentage in meat were observed in broilers supplemented with LB extract by Marcinčaková et al (2011a) confirming its antioxidant activity.…”

Helicobacter pullorum’un Değişik Isılarda ve Sürelerde Dayanıklılığının Belirlenmesi

“…After confirmation of the experimental infection, cecal and colon contents of each animal were collected followed after the necropsy of the animals and a pool of faecal content have been achieved [13] .…”