Langston Wilfried Edie Nounamo - University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Sciences, Animal Production and Nutrition Research Unit, PO Box: ۷۰ Dschang, Cameroon.
Ruben Ngouana Tadjong - University of Douala, Institute of Fisheries and Aquatic Science of Yabassi, Aquaculture Department, Laboratory of Aquaculture and Demography of Fisheries Resources, PO Box: ۲۷۰۱ Douala, Cameroon.
Pascaline Ciza Azine - Université Evangélique en Afrique, Faculté des Sciences Agronomiques et Environnement, Département de Zootechnie et Environnement, République Démocratique du Congo (RDC).
Agwah Ebile Dayan - University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Sciences, Animal Production and Nutrition Research Unit, PO Box: ۷۰ Dschang, Cameroon.
Carelle Doriane Nanken Tsague - University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Sciences, Animal Production and Nutrition Research Unit, PO Box: ۷۰ Dschang, Cameroon.
Herman Joël Pimagha Moffo - University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Sciences, Animal Production and Nutrition Research Unit, PO Box: ۷۰ Dschang, Cameroon.
Arielle Priscila Kemmo Kenhago - University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Sciences, Animal Production and Nutrition Research Unit, PO Box: ۷۰ Dschang, Cameroon.
Jean Raphaël Kanaa - University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Animal Sciences, Animal Production and Nutrition Research Unit, PO Box: ۷۰ Dschang, Cameroon.

The side effects and banning of synthetic antibiotics made researchers to turn towards phytobiotics which has been hypothesise to act as synthetic antibiotics, having no side effects and having positive returns. The present study was assigned to evaluate the effects of in-feed blend Afrostyrax lepidophyllus, Tetrapleura tetraptera, Dichrostachys glomerata and Syzygium aromaticum on production performances of Japanese quails. A total of ۱۴۴ two weeks old Japanese quails were randomly assigned to ۶ treatments with ۴ replicates of ۶ birds each in a completely randomised design. The treatments consisted of incorporating in ۱ kg of basal diet (T۰), ۱ g of antibiotic Doxycyclin (T۰+), ۴ g (۲/۲) blend Dichrostachys glomerata - Afrostyrax lepidophyllus (T۱), ۴ g (۲/۲) blend Dichrostachys glomerata - Tetrapleura tetraptera (T۲), ۴ g (۲/۲) blend Dichrostachys glomerata - Syzygium aromaticum (T۳) and ۴ g (۱/۱/۱/۱) blend of all four spices (T۴). Throughout the study (۳۵ days), feed intake, live body weight, weight gain significantly (p<۰.۰۵) decreased with in-feed blend spices while feed conversion ratio was comparable (p>۰.۰۵) in all treatments. Dry matter and organic matter digestibility were comparable (p>۰.۰۵) meanwhile crude protein (۹۷.۸۲%) and crude cellulose (۸۷.۷۹%) digestibility were highest (p<۰.۰۵) in animals fed on blend D. glomerata - S. aromaticum. Apart for quails fed on synthetic antibiotic treatment, intestine length was lowest (p<۰.۰۵) compared to all treatments, carcass characteristics and digestive organ’s mensurations were comparable amongst treatments. Meanwhile, feed intake costs ۲۲۳.۲۵ and ۲۳۸.۹۵ Fcfa were respectively lowest (p<۰.۰۵) with blend D. glomerata - T. tetraptera and D. glomerata - S. aromaticum. It was concluded that incorporating ۴ g (۲/۲) blend Dichrostachys glomerata - Syzygium aromaticum in quail’s feed improve protein and cellulose digestibility and reduce feed intake cost.The side effects and banning of synthetic antibiotics made researchers to turn towards phytobiotics which has been hypothesise to act as synthetic antibiotics, having no side effects and having positive returns. The present study was assigned to evaluate the effects of in-feed blend Afrostyrax lepidophyllus, Tetrapleura tetraptera, Dichrostachys glomerata and Syzygium aromaticum on production performances of Japanese quails. A total of ۱۴۴ two weeks old Japanese quails were randomly assigned to ۶ treatments with ۴ replicates of ۶ birds each in a completely randomised design. The treatments consisted of incorporating in ۱ kg of basal diet (T۰), ۱ g of antibiotic Doxycyclin (T۰+), ۴ g (۲/۲) blend Dichrostachys glomerata - Afrostyrax lepidophyllus (T۱), ۴ g (۲/۲) blend Dichrostachys glomerata - Tetrapleura tetraptera (T۲), ۴ g (۲/۲) blend Dichrostachys glomerata - Syzygium aromaticum (T۳) and ۴ g (۱/۱/۱/۱) blend of all four spices (T۴). Throughout the study (۳۵ days), feed intake, live body weight, weight gain significantly (p<۰.۰۵) decreased with in-feed blend spices while feed conversion ratio was comparable (p>۰.۰۵) in all treatments. Dry matter and organic matter digestibility were comparable (p>۰.۰۵) meanwhile crude protein (۹۷.۸۲%) and crude cellulose (۸۷.۷۹%) digestibility were highest (p<۰.۰۵) in animals fed on blend D. glomerata - S. aromaticum. Apart for quails fed on synthetic antibiotic treatment, intestine length was lowest (p<۰.۰۵) compared to all treatments, carcass characteristics and digestive organ’s mensurations were comparable amongst treatments. Meanwhile, feed intake costs ۲۲۳.۲۵ and ۲۳۸.۹۵ Fcfa were respectively lowest (p<۰.۰۵) with blend D. glomerata - T. tetraptera and D. glomerata - S. aromaticum. It was concluded that incorporating ۴ g (۲/۲) blend Dichrostachys glomerata - Syzygium aromaticum in quail’s feed improve protein and cellulose digestibility and reduce feed intake cost.

Antibiotic, Digestibility, Japanese quail, Production cost, Spice