Effect of some biological supplementation on productive performance, physiological and immunological response of layer chicks

Abstract

The present study was carried out to evaluate the effects of biological (Bacillus subtilis and Enterococcus faecium) supplementation on productive performance, physiological and immunological response of Hy-line layer chicks. Total of 300 one-day old of Hy-line layer chicks, were randomly divided into three groups. The first group was fed a basal diet and served as a control. While the second and third groups were fed the basal diet that supplemented with the probiotic mixture at the rate of 1 and 2 gm/kg of diet, respectively, until 10 weeks of age. Results indicated that treated groups with helpful bacteria (B. subtilis and E. faecium) showed significant effect on final body weight gain, feed conversion ratio and higher antibody levels against Newcastle disease virus as compared to the control one. Moreover, significant increase was recorded in the relative weight of carcass, liver, heart, kidney, proventiculus, small intestine, thymus, spleen, bursa of Fabricius and small intestine length (cm) in all supplemented groups as compared to the control group. On the other hand, there were no significant effects on serum total protein, albumin, globulin and creatinine concentrations, while, serum ALP, ALT, AST activities, uric acid, triglycerides and cholesterol concentrations in all treated groups were significantly lower than in control group. Furthermore, serum glucose, calcium, phosphorus concentrations and triiodothyronine hormone level were significantly higher in treated groups than the control. Red and white blood cell counts, hemoglobin level and hematocrit values were significantly increased in all treated groups as compared to control group. In conclusion, biological (B. subtilis and E. faecium) supplementation can be used as one of important additive for enhancing the productive efficiency, and immunity of growing Hy-line chicks.

Synergetic Effects of Multispecies Probiotic Supplementation on Certain Blood Parameters and Serum Biochemical Profile of Broiler Chickens

“…The obtained results were in accordance with the findings of Hussein, (2014) and Hatab et al (2016) who detected significant increase in serum glucose concentration in broilers fed on diets supplemented with probiotics as compared to the control. The increase in the serum glucose concentration may be due to a temperate amelioration gluconeogenesis and boosted lactose absorption (Das et al, 2005).…”

“…Many other positive impacts of probiotic supplementation in poultry have been well documented, including, accelerate development of normal microflora in the newly hatched chicks and protecting them against enteropathic disorders (Timmerman et al, 2005;Bansal et al, 2011), improving production performance, such as, feed intake, feed conversion efficiency and weight gain (Cruywagen et al, 1996;Cavit, 2003;Lesmeister et al, 2004;Awad et al, 2009;Alkhalf et al, 2010). Furthermore, the most important effect that it exerts body's resistance to infectious diseases (Santos and Ferket, 2006) and help lowering of chick mortality (Dhama et al, 2008;Hatab et al, 2016).…”

Effect of probiotics and herbals on health and shedding of resistant escherichia coli in piglets

“…The mean of MCV and MCH was the highest in group H, therefore reduced count of RBC cannot be associated with iron deficiency. In our study probiotics decreased the level of ASAT; it coincided with other studies about the effect of probiotics on layer chicks (Gallus gallus domesticus L.) (Hatab, Elsayed, & Ibrahim, 2016). At the same time, there are other authors who have not observed this tendency (Liu et al, 2015).…”

Effects of Bacillus subtilis C‐3102 on production, hatching performance, egg quality, serum antioxidant capacity and immune response of laying breeders

“…A growing body of scientific research shows that probiotics have beneficial effects on growth performance and intestinal microbiota balance in chickens (Chen, Gao, Zhu, Qin, & Qiu, ), piglets (Lan, Tran, & Kim, ) and aquaculture (Liu, Chiu, Wang, & Cheng, ; Niamphithak, Chareonwattanasak, & Doolgindachbaporn, ). Dietary BS exerts positive effects on production performance, improving the intestinal health and systemic immunity in poultry (Hatab, Elsayed, & Ibrahim, ; Lee, Lillehoj, Jang, & Lee, ). B. subtilis C‐3102 has been used as a direct‐fed microbial or probiotic product since 1986 to improve production performance in broilers worldwide (Silley, ).…”

“…Dietary BS exerts positive effects on production performance, improving the intestinal health and systemic immunity in poultry (Hatab, Elsayed, & Ibrahim, 2016;Lee, Lillehoj, Jang, & Lee, 2014). B. subtilis C-3102 has been used as a direct-fed microbial or probiotic product since 1986 to improve production performance in broilers worldwide (Silley, 2006).…”