Effects of probiotic ( and ) supplementation on mortality, growth performance, and carcass characteristics of native Vietnamese broilers challenged with Typhimurium.

Background And Aim: Probiotic species have been proven to be beneficial on broiler performance; however, most studies have focused on industrial chickens with fast growth, whereas little information concerning the use of these species on native chickens is available. This study aimed to investigate the effects of probiotics (LP) and (BS) on the mortality, growth rate, and carcass characteristics in native Noi chickens challenged with Typhimurium.

Materials And Methods: We divided 420 1-day-old Noi chicks into seven different treatment groups (n = 60): negative control (no .

Relationship between plumage color and eggshell patterns with egg production and egg quality traits of Japanese quails.

Aim: This study was conducted to identify the diversity of feather color and to determine the relationship between plumage color and egg yield as well as eggshell patterns and internal egg quality traits of Japanese quails.

Materials And Methods: For investigating phenotypic diversity, a total of 600 quails from five breeding farms were evaluated to record head feather, shank, and plumage color. An on-station experiment was also conducted on 360 laying quails to examine the relationship between plumage color and egg production and egg weight during 24 weeks of laying.