The effects of diet supplemented with sodium bicarbonate upon blood pH, blood gases and eggshell quality in laying geese

Abstract

The effects of diet supplemented with sodium bicarbonate (NaHCO<sub>3</sub>) upon blood pH, blood gases and eggshell quality during the laying cycle in geese were investigated. Fourteen geese aged 2 yr old were divided into two groups as; control (Group C, n = 7) and 0.5% NaHCO<sub>3 </sub>-supplemented group (Group T, n = 7). After 15 days of adaptation period, blood samples were collected every 6 h during a single laying cycle (over 42 h) and the data obtained were analysed for the pH, base excess (BE-B), HCO<sub>3</sub><sup>–</sup> concentration, partial CO<sub>2</sub> pressure (pCO<sub>2</sub>) and total CO<sub>2</sub> concentration (tCO<sub>2</sub>). The parameters of eggshell quality (i.e. thickness and weight) were also measured following the laying. No correlation was found between the groups for the same blood parameters measured. But, there was a significant correlation (min. r = 0.946 and P < 0.05) between all the parameters except for the pH in the groups. Following NaHCO<sub>3</sub> supplementation of diet however, there was no significant improvement in eggshell thickness and weight. These findings indicate that the NaHCO<sub>3</sub> supplementation of diet may support the maintenance of venous blood pH, BE-B, HCO<sub>3</sub><sup>–</sup>, pCO<sub>2</sub> and tCO<sub>2</sub> levels at the physiological ranges which are required for normal health and production status of goose during the laying cycle.

Effect of Limestone Particle Size and Potassium Supplementation on Growth Performance, Blood Physiology, and Breast Muscle Myopathy of Male Broiler Chickens

“…In the present study, the resting bird's venous blood chemistry values were within the range reported by Martin et al (21). The blood pH of 7.41 and 7.40 in K-and K+-fed birds, respectively, were consistent with a homeostasis condition, and the data agreed with (31), that reported blood pH values of 7.40. There were no differences found in blood pH in the present study; however, the numerical difference between the pH could not be ignored.…”

Effect of Dietary Inclusion of Sodium Bicarbonate on Blood Profile of Caged Layers During Summer

“…-concentration (HCO3 -, mmol/l), were determined by the Rapid Lab 248 pH/Blood Gas Analyzer (Kaya et al, 2004). Plasma Na + and K + concentration were detected by using clinical flame photometer, whereas plasma calcium and potassium concentration were determined by atomic absorption spectrophotometer as described by AOAC (2010) using available commercial kit.…”

“…Supplementation of sodium bicarbonate may help to maintain proper pH balance, eliminate acidosis and facilitate metabolic process, ensuring maximum growth and productivity Naseem et al, 2005). Moreover, its use as dietary supplement may help rise in blood bicarbonate ion concentration, which can favor better performance of birds (Kaya et al, 2004;Naseem et al, 2005). Information regarding potential beneficial effects of this substance on blood profile of layers during heat stress/summer is scanty, especially in the areas of Asiatic region.Based upon scientific information available, it can be envisaged that high environmental temperature can negatively influence blood profile in poultry birds.…”

Effect of Dietary Inclusion of Sodium Bicarbonate on Digestibility of Nutrients and Immune Response in Caged Layers During the Summer

“…It is commonly added as a simple solution for restoring the pH of water that has a high level of chlorine (Whiting et al, 1991). Sodium bicarbonate in feed or water has shown potential benefits on production performance (Ahmad et al, 2005;Khattak et al, 2012;Peng et al, 2013), egg characteristics (Kaya et al, 2004;Jiang et al, 2015) and blood profile (Kurtoglu et al, 2007) in poultry birds exposed to heat stress.…”