Effect of Citric and Acetic Acid Water Acidification on Broiler’s Performance with respect to Thyroid Hormones Levels (original) (raw)

Thyroid Activity, Some Blood Constituents, Organs Morphology and Performance of Broiler Chicks Fed Supplemental Organic Acids.

Abstract: A total number of 189 one d-old Hubbard broiler chicks were randomly divided into seven treatment groups of three replicates, 9 chicks each. The first group was served as control and fed the basal diets. While, the other six groups were received the basal diet supplemented with acetic acid (AC), citric acid (CA) or lactic acid (LA) at different levels of 1.5 and 3.0 % of diet, respectively. The experiment was lasted when chicks were 42 d old. Thyroid gland activity, some blood components, organ morphology, pH level of some gastrointestinal tract (GI-tract) segments and performance were measured. The results showed that dietary acidification elevated significantly concentration of T3 as well as T3:T4 ratio, but T4 level was not significantly affected. Moreover, the effect was clearly notable with CA and AC. Chicks fed acidified diets had better immune response as indicated by their higher serum globulin and relative lymphoid organs than the control. Similarly, higher calcium and phosphorus concentrations were noted. On the other hand, significant reduction in abdominal fat and serum level of cholesterol and total lipid was achieved due to dietary acidification. The liver functions did not adversely alter, in response to addition of organic acidifiers. Addition of any level and source of organic acids increased feed digestion and absorption as a result of increasing relative pancreas weight and small intestine density (indication of the intestinal villi dimension). The pH values in different GI-tract segments were insignificantly decreased with supplemental all types and doses of AC, CA and LA. Broiler chicks of dietary organic acids had superior improvement in live body weight (LBW), body weight gain (BWG) and feed conversion ratio (FCR) as compared to those of unsupplemented diet. No remarkable differences were noted between the addition of 1.5 and 3% of either AC, CA or LA in most studied traits.

Plasma Thyroid Hormone Concentrations and pH Values of Some GI-Tract Segments of Broilers Fed on Different Dietary Citric Acid and Microbial Phytase Levels

An experiment was conducted to study the effect of microbial phytase supplementation and citric acid on thyroid activity, relative weight of lymphoid organs and pH values of some GI-tract segments in broiler chickens fed corn-soybean meal based diets. The data was analyzed using a randomized complete block design (RCBD) with factorial arrangement of 3×3, three levels of citric acids (0, 3 and 6%) and three levels of phytase (0, 500 and 1000 IU kg-1). There were three replicates (with ten chicks in each replicate) for each treatment. A total of 270 Ross 308 broiler chicks were used. The results indicated that addition of citric acid to diets caused significant decrease in pH values of crop, gizzard, duodenum, jejunum and ileum (P<0.05) and caused significant increase (P<0.01) in plasma triiodothyronine (T3) concentration, T3:T4 ratio and relative weight of bursa and thymus, but had no significant effect on thyroxin (T4) concentrations. Microbial phytase significantly increased relative weight of thymus (P<0.01), but had no significant effects on thyroid gland activity, relative weight of bursa and values of pH in different parts of the GI-tract.

Effect of Acetic Acid and Sodium Bicarbonate Supplemented to Drinking Water on Water Quality, Growth Performance, Organ Weights, Cecal Traits and Hematological Parameters of Young Broilers

Animals, 2021

To evaluate the effect of acetic acid and sodium bicarbonate supplemented to drinking water on water quality, growth performance, relative organ weights, cecal traits and hematological parameters of broilers, a total of 456 one-day-old Cobb MV × Cobb 500 FF mixed broilers were randomly placed in three experimental treatments, with four replicates per treatment and 38 birds per replicate, for 10 days. The treatments consisted of the use of acetic acid (0.4%; T1) as acidifier, an apparently neutral pH (T2) and sodium bicarbonate (1%; T3) as alkalizer of the drinking water. T3 showed the highest values (p < 0.05) for total dissolved solids, electrical conductivity, salinity and pH. T1 and T2 showed the same productive response (p > 0.05); however, T3 decreased (p < 0.05) body weight, feed intake and the relative weight of the pancreas and immune organs and increased (p < 0.05) water intake, mortality and relative weight of the heart and liver. Likewise, T3 increased (p <...

EFFECT OF ACETIC ACID ADDED TO DRINKING WATER OF TWO BROILER STRAINS ON PERFORMANCE AND SMALL INTESTINE HISTOLOGICAL

Diyala Agricultural Sciences Journal, 2014

In this experiment we study the effect of acetic acids on the performance of broiler chickens. A total of one day old broiler chicks 215 of Cobb-500 strain and 215 of Ross-308 strain were distributed randomly into 3 treatments and 3 replicates. Broiler chickens in control group (T1) were drinking only tap water, T2 and T3 were added 1% and 2% acetic acid mixed in drinking tap water. The results showed significantly increase (P<0.05) in body weight, body weight gain, better feed conversion, Villi height and crypt depth of (duodenum, jejunum and ileum) and Lactobacillus content when added acetic acid 1% and 2% in the treatments T2 and T3 respectively in the both strains Ross-300 and Cobb-500 as compared with T1 (control), While, the results showed significant decrease (P<0.05) in mortality, Enterococcus and E. Coli content in the treatments T2 and T3 for both strains especially T3 when added 2% acetic acid to drinking water. While, there were non-significant effect between the two strains (Ross-308 and Cobb-500).