Impact of Adding Serotonin, Tryptophan and Optifeed in Drinking Water on Broiler Behavior, Performances Growth and Some Biochemical Traits of Blood

Abstract

The present study was conducted to study the impact of serotonin, tryptophan and Optifeed adding in drinking water on behavior characterize, body performance, sensory evaluation of breast and thigh meat, some biochemical parameters of blood and immune status against some diseases by ELISA of broiler . 400 unsexed chicks one day old were randomly distributed into 4 treatments and 4 replicates for each treatment, are: T0 (control standard drinking water DW), T1 (0.5 g tryptophan/1 L DW, T2 (2 mg serotonin/1 L DW, T3 (0.5 g Optifeed®/1 L DW). The birds were reared for 42 days and behavior traits of birds controlled by erected cameras upon all replicates. The analyzed results were significantly improved behavioral characteristics, body performance (body weight and gain, feed intake, FCR, water consumption, uniformity, liver, and gizzard%), feasibility (economic profit), sensory evaluation (aroma, taste, tenderness, juiciness, and acceptance) of cocked breast and thigh meat, blood serum concentrations (total protein, globulin, highdensity lipoprotein (HDL), serotonin, thyroxin (T4), tryptophan), and immunological ELISA titers against Newcastle, Gumboro, and Infectious bronchitis viral diseases. Otherwise, significantly decreased mortality, and blood serum concentrations, (triglyceride, low-density lipoprotein (LDL), and corticosterone) in all treatments of water additives compared with the control. The addition of Optifeed® and serotonin positively affects in all experimental characteristics than others especially improved behavioral characterize of broiler during the rearing periods.

Improving Behavior, Immune Statue and Growth of Broilers by Adding Some Neurotransmitters in Drinking Water and Hero Flowers (Alcea Kurdica) in Diets

“…The use of medicinal flower extracts is very important as feed additives for appetite stimulators, and immune enhancements [18]. Neurotransmitters mainly support feelings of well-being by regulating mood, appetite, sleep cycles [19], feeding [20], and locomotion [21], it may be beneficial to provide the diet with an optimal concentration of neurotransmitters, especially serotonin and functional feed additives to improve the positive behavioral characteristics that are more important in all body functions, such as the feeling of happiness and good welfare, lower aggressiveness in treated birds [22,11]. The serotonergic interplay in animal personality would benefit from further studies, especially on the role of serotonin in personality traits such as exploration and sociability to obtain a fuller picture of how serotonin can affect more personalities [23].…”

“…The experimental feeds were prepared in Evan Company and contained starter (1-10), grower (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25), and finisher (26-42) days: 3097, 2990, and 2906 kcal/kg metabolizable energy, and 22.97, 21.50, and 20.78 % crude protein respectively. Chicks received 24 hours of light (L) during the 1 st week.…”

“…Blood samples: Blood samples were taken after slaughtering birds at 9:00 AM, at the end of 42 d old, then serum was prepared and determined by using ELISA according to the instructions of the kit involved in the Buyer's Guide for Life Science Bio-compare, correspondingly to [11], antibodies titer against ND and IBV diseases according to Abdel Moneim et al [12] by using the Indicial Bioscience kit, and immunoglobins IgA, IgM and IgG concentrations were determined by ELISA to evaluate the immune response of chickens against T-independent antigens by ELISA, according to Abdel Moneim et al [13], the absorbance was read at 450 nm (Microplate reader Bio-Compare, USA).…”