scholarly journals Effect of organic acid treated diets on growth, apparent nutrient digestibility and faecal moisture of broiler chickens

2021 ◽  
Vol 43 (2) ◽  
pp. 218-223
Author(s):  
E. K Ndelekwute ◽  
E. D Assam ◽  
P. C Ekere ◽  
U. E. Ufot

An experiment was conducted to determine the effect of four organic acids (acetic, butyric, citric and formic acids) inclusion in the diets of broilers on growth, nutrient digestibility and faecal moisture. One hundred and fifty one day old Arbor-Acre - plus chicks were used. There were five dietary treatments. Basal diet which served as control contained no organic acid was formulated, while diets 2, 3, 4 and 5, respectively contained 0.25% acetic, butyric, citric and formic acids formed by adding 0.25% of each acid to the basal diet. Each treatment was replicated three times with 10 birds per replicate, arranged in completely randomized design (CRD). Diets were both isocaloric and isonitrogenous. The experiment lasted for 4 from the fourth to the eight week. Feed and water were given ad libitum. There were no significant differences (P>0.05) in live weight, daily gain, feed intake, feed: gain ratio and protein efficiency ratio. Acetic acid significantly (P<0.05) increased water intake. Fecal moisture was significantly reduced by citric and butyric acids. Higher crude protein digestibility was achieved by butyric acid (69.98%) citric (69.67%) and formic acid (71.33%) than the control (63.75%). Digestibility of CF, EE and ash was significantly (P<0.05) higher in all the organic acid groups. Feeding of diets treated with 0.25% of the test organic acids at the finisher phase, in that despite improved digestibility of nutrients the practice should not be encouraged for reasons of insignificant growth performance.

2021 ◽  
Vol 43 (1) ◽  
pp. 218-225
Author(s):  
E. K. Ndelekwute ◽  
E. D. Assam ◽  
P. C. Ekere ◽  
U. E. Ufot

An experiment was conducted to determine the effect of four organic acids (acetic, bubric, citric and formic acids) inclusion in the diets of broilers on growth, nutrient digestibility and faecal moisture. One hundred and fifty one day old Arbor-Acre-plus chicks were used. There were five dietary treatments. Basal diet which served as control contained no organic acid was formulated, while diets 2, 3, 4 and 5, respectively contained 0.25% acetic, butyric, citric and formic acids formed by adding 0.25% of each acid to the basal diet. Each treatment was replicated three times with 10 birds per replicate, arranged in completely randomized design (CRD). Diets were both isocaloric and isonitrogenous. The experiment lasted for 4 from the fourth to the eight week. Feed and water were given ad libitum. There were no significant differences (P>0.05) in live weight, -daily gain, feed intake, feed: gain ratio and protein efficiency ratio. Acetic acid significantly (P<0.05) increased water intake. Fecal moisture was significantly reduced by citric and butyric acids. Higher crude protein digestibility was achieved by butyric acid (69.98%) citric (69.67%) and formicucid (71.33%) than the control (63.75%). Digestibility of CF, EE and ash was significantly (P<0.05) higher in all the organic acid groups. Feeding of diets treated with 0.25% of the test organic acids at the finisher phase, in that despite improved digestibility of nutrients the practice should not be encouraged for reasons of insignificant growth performance.


2016 ◽  
Vol 45 (2) ◽  
pp. 10-17 ◽  
Author(s):  
EK Ndelekwute ◽  
GE Enyenihi ◽  
UL Unah ◽  
HC Madu

An experiment was conducted to determine the effect of organic acids (acetic, butyric, citric and formic acids) on growth and nutrient digestibility of broilers. One hundred fifty (150) day old Hubbard chicks were used. There were five dietary treatments such viz Diet 1 as control contained no organic acid, diets 2, 3, 4, and 5 contained 0.25% acetic, butyric, citric and formic acids, respectively. Each treatment was replicated three times having 10 birds arranged in completely randomized design (CRD). Feed and water were given ad libitum. Feeding of organic acid diets lasted for 7 weeks starting from the second week.  At the starter phase, formic acid improved live weight. Feed and water intakes were significantly (P<0.05) reduced by butyric acid.  Feed: gain ratio was improved by formic acid. At the finisher phase, live weight was significantly (P<0.05) improved by the acids except butyric acid. Feed intake, daily gain and feed: gain ratio were not significant (P>0.05). Crude protein and ether extracts digestibility were improved by all the organic acids (P<0.05). It is therefore concluded that 0.25% formic acid could be added to broiler diets.Bang. J. Anim. Sci. 2016. 45 (2): 10-17


2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Saikat Samanta ◽  
Sudipto Haldar ◽  
Tapan Kumar Ghosh

This study evaluated the efficacy of organic acids as a growth promoter for broiler chickens relative to antibiotic growth promoters (AGPs). Broiler chickens were supplemented with graded doses of an organic acid blend (OAB, 1 g and 2 g/kg diet) and bacitracin methylene disalicylate (BMD, 0.5 g and 1 g/kg diet) for 35 days. Supplementation of OAB improved () feed conversion ratio (FCR) and increased protein accretion (). Dietary acidification caused pH of the gizzard to decline linearly () with the dose of supplemental OAB. In the lower intestine, pH remained unaffected by dietary treatments. Unlike BMD, supplemental OAB selectively promoted growth of lactobacilli in the small intestine. Moreover, compared to BMD, OAB tended to maintain the villi in the small intestine at a greater height. Although benefits of exceeding the dose of supplemental organic acids more than 1 g/kg diet are not always conspicuous, based on the live weight and feed conversion data, supplementation of 2 g organic acid per kg diet may be recommended for total replacement of AGPs in broiler diet.


Animals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 416 ◽  
Author(s):  
Dinh Hai Nguyen ◽  
In Ho Kim

We investigated the effects of a blend of organic acids (OAs) and medium-chain fatty acids (MCFAs) supplementation in 800 1-d-old male Ross 308 broiler chickens (42 ± 0.90 g) in a 7-week study. Broiler chicks were randomly allocated into one of the five dietary treatments (16 birds per pen with 10 pens per treatment). Dietary treatments consisted of corn-soybean meal based basal diet and the basal diet supplemented with blend of OAs and MCFAs at 0.25, 0.5, 0.75 g, and 1 g per kg of feed. In the current study, during the whole experimental period, the inclusion of the blend of OAs and MCFAs in the basal diet linearly improved (p < 0.05) body weight gain (BWG), feed conversion ratio (FCR), and dry matter digestibility. The increasing inclusion of the blend of OA and MCFA levels in the diets linearly decreased (p = 0.002) feed intake during d 1 to 7. Broilers fed diets containing different levels of the blend of OAs and MCFAs showed a linear increase (p = 0.006) in Lactobacillus concentrations and decrease (p = 0.014) in ammonia (NH3) at the end of the experiment. However, the blend of OAs and MCFAs did not affect carcass quality, E. coli, and Salmonella counts, as well as hydrogen sulfide and total mercaptans gas emission (p > 0.05). In conclusion, the blend of OA and MCFA supplementation positively influenced growth performance, DM digestibility, excreta Lactobacillus counts, as well as NH3 gas emission in broiler chickens.


Author(s):  
J.A. Martínez-García ◽  
J.C. Garcia-Lopez ◽  
P.A. Hernández-García ◽  
G.D. Mendoza-Martínez ◽  
A. Vázquez-Valladolid ◽  
...  

Background: Choline is a nutrient with numerous metabolic functions, but its requirements for ruminants are unknown. The supplementation with bypass choline could enhance productivity. Methods: Twenty-four male lambs (Rambouillet 23.5 kg±3.17 kg initial BW) were fed a basal diet with treatments which consisted of a control and oral doses of ruminally-protected choline (4 g/d RPC) and plant-based choline (4 g/d Biocholine) in a completely randomized design with initial weight as a covariate. The experiment was conducted for 42 days during which live weight, dry matter intake, carcass characteristics, blood metabolites and basic hemograms were measured. Result: The daily gain in lambs was similar between treatments. Intake was higher in lambs given Biocholine (1.32 kg/d). The L* (represents the light to dark color) value and mineral content in the meat were improved with both sources of choline. Blood triglycerides increased by RPC compared with the other treatments and cholesterol was reduced by Biocholine. Alanine transaminase (ALT) and aspartate aminotransferase (AST) activity decreased by effect of choline. Hematological parameters were affected by choline supplementation regardless of the source; erythrocyte, monocytes and lymphocytes count decreased with both sources of choline in growing lambs.


2021 ◽  
Vol 50 (6) ◽  
Author(s):  
E. Amirahmadi ◽  
A.R. Safamehr ◽  
A. Nobakht ◽  
Y. Mehmannavaz

This study was conducted to investigate the effects of thyme essential oil and enzyme supplementation on rations with two different energy (wheat or corn) and protein resources (soy or rapeseed meals) on gut morphology and protein digestibility of broiler chickens. Three hundred eighty-four male Ross-308 broiler chickens were used with a 23 factorial arrangement with treatments according to a completely randomized design. The morphological examinations of the intestine were carried out on 1-cm long excised segments from duodenum, jejunum and ileum. Adding wheat to the diet increased small intestine length in birds compared to other feedstuffs (P <0.05). Duodenum crypt depth and jejunum villi length were also higher in groups fed with rations containing wheat (P <0.05). Groups that received thyme essential oil and enzyme supplementation had increased length of the duodenum (P <0.05). However, the two- and three-factor interaction effects were not significant. Protein digestibility was not affected by treatment (P >0.05). Feeding wheat to broiler chickens may increase the surface area for nutrient absorption in the small intestine as compensation for the anti-nutritive activity of non-starch polysaccharides in wheat-based diets. Wheat based diets are expected to be acceptable for broilers when supplemented with appropriate enzymes or thyme essential oil.


1970 ◽  
Vol 37 (2) ◽  
pp. 58-65
Author(s):  
MM Rahman ◽  
ZH Khandaker ◽  
ABM Khaleduzzaman

The bioavailability of phosphorous, and blood serum and rumen liquor P level was studied in indigenous growing cattle by feeding bone meal and Triple Super Phosphate (TSP) with control diet. Nine indigenous growing cattle (live weight of 164 ± 21 kg) were randomly assigned in a Completely Randomized Design (CRD) to three dietary treatments, consisted of a basal diet (T0) of 0.16% P and experimental diets supplemented with bone meal (T1) and triple super phosphate (T2) to provide P level of 0.44%. All diets were formulated to be iso-nitrogenous and iso-caloric. Three cannulated animals were used for rumen liquor P level study by feeding three diets. Apparent absorption and balance of P were significantly (P<0.01) higher in T1 and T2 diets than that of diet T0, but true absorption did not differ significantly (P>0.05). Bioavailability of P of control diet (37.41%), bone meal (81.45%) and triple super phosphate (80.49%) were significantly differed (P<0.01). Rumen liquor and blood serum P level differed significantly (P<0.01). Supplementation of bone meal and triple super phosphate results in high blood serum P (P>0.05) with no difference between bone meal and triple super phosphate. The results suggested that the bioavailability of P from bone meal and TSP was high and dietary supplementation of P with bone meal and TSP improved P retention and blood serum P level. DOI: http://dx.doi.org/10.3329/bjas.v37i2.9882 BJAS 2008; 37(2): 58-65


2020 ◽  
Author(s):  
Santi Devi Upadhaya ◽  
Je Min Ahn ◽  
Jae Hyoung Cho ◽  
Hyeun Bum Kim ◽  
Jin Young Kim ◽  
...  

Abstract Background: Effective antibiotic alternatives are the urgent need of poultry industry to control disease outbreaks. Phage therapy mainly utilizes lytic phages to kill their respective bacterial hosts and can be attractive solution to combating the emergence of antibiotic resistance in livestock. Methods: Five hundred and four one-day--old broilers (Ross 308) were allotted into 1 of 4 treatment groups according to a completely randomized design. Dietary treatments consisted of CON (basal diet), PC (CON + 0.025% Avilamax®(antibiotics), TR1 (CON + 0.05% bacteriophage), and TR2 (CON + 0.10 % bacteriophage) groups. Results: A significant linear effect on body weight gain (BWG) was observed during day 1-7, day 22-35, and overall experiment in bacteriophage (BP) supplemented groups. The BWG tended to be higher (P = 0.08) and the feed intake (FI) was increased (P = 0.017) in birds fed PC than CON diets. A greater (P = 0.016) BWG and trends in increased FI (P = 0.06) were observed during the overall experiment period in birds fed PC than CON diet. A trend in linear (P = 0.0833) increment in excreta Lactobacillus counts was observed in birds fed graded level of BP supplemented diets. At the genus level, the relative abundance of Lactobacillus was decreased in PC (65.28%), while it was similar in TR1, 2, (90.65%, 86.72%, 81.44%) compared to CON (90.19%). At the species level, relative abundance of Lactobacillus salivarus was higher in TR1 (40.15%) and TR2 (38.58%) compared with CON (20.04%) and PC (18.05%). A linear reduction in the weight of Bursa of Fabricus (P = 0.022) and spleen (P = 0.052) was seen in birds fed increasing level of BP diets and a trend in increment (P = 0.059) in the weight of gizzard was observed in birds fed PC than BP diets. Linear and quadratic responses were observed in redness of breast muscle color in birds fed graded level of BP. Conclusions:The increase in dietary BP supplementation linearly increased BWG, Lactobacillus counts and enhanced beneficial microbiota in the gut, and 0.05% BP addition was sufficient for supporting immune organs, bursa and spleen.


2020 ◽  
Vol 47 (4) ◽  
pp. 269-285
Author(s):  
A. F. Agboola ◽  
B. R. O. Omidiwura ◽  
R. O. Ahmed ◽  
O. D. Ayoola

In recent time, there has been call for antibiotics substitute in animal feed due to concerns over its residual effects and the development of antibiotic-resistant bacteria in humans consuming the meat. Short chain fatty acids are often used as viable alternatives to antibiotics. However, there has conflicting reports on the efficacy of the organic acids. This study was therefore aimed at assessing the effects of butyric acid supplemented diets on growth performance, ileal nutrient digestibility, gut morphology and histopathology of broiler chickens in a 21-day feeding trial. Three hundred and thirty-six, one-day old Arbor Acre plus broiler chicks were randomly assigned to seven dietary treatments with six replicate groups of eight chickens each. Diet 1 was the Corn-SBM diet {basal diet (negative control NC)}; Diet 2 (positive control) was basal diet+105g of oxytetracyclene/tonne of feed; Diet 3 comprised NC+0.1% butyric acid); Diet 4 consisted of NC+ 0.2% butyric acid, Diet 5 contained NC+ 0.3% butyric acid, Diet 6 had NC+ 0.4% butyric acid and Diet 7 consisted of NC+ 0.5% butyric acid. Titanium dioxide was added at the rate of 5g/kg as indigestible dietary marker. Performance indices were calculated. On day 21, two chickens per replicate were slaughtered, excised and digesta samples collected at two-thirds to ileo-caeco-colonic junction for digestibility assay. After flushing out the digesta samples, sections of the ileum (5cm posterior to Meckel's diverticulum) were removed for ileal morphological measurements while ileal sections and liver were harvested for histopathological examinations. There were no significant (P>0.05) differences in the performance indices across the treatments. Digestibility of crude protein, ash and nitrogen free extract in broiler chickens fed diets containing antibiotic and 0.2, 0.3, 0.4 and 0.5% butyric acid supplemented diets were significantly (P<0.05) higher than those fed basal diet and diet supplemented with 0.1% butyric acid. Ether extract digestibility of those fed basal diet was similar (P>0.05) to chickens on other dietary treatments. Similar crude fibre digestibility was recorded for basal diet and 0.1% butyric acid supplemented diet. Diets had no significant influence on the villus length, villus height, crypt depth, epithelial thickness and villus height to crypt depth ratio. Histopathological observation of chickens on the control diet showed clinical symptoms of villi and hepatocellular atrophy. No lesions were observed in the ilea of chickens on the antibiotics supplemented diets. Clinical symptoms ranging from villi atrophy, necrosis of the villi, clubbing of the villi, loss of enterocyte, hepatocellular atrophy and necrosis, hyperplasia of bile ductular epithelium, accentuation of sinusoids, and focus of lymphoid aggregate in parenchyma of liver were observed for chickens on butyric acid supplemented diets. Due to the equal level of performance recorded across treatments, it may therefore be concluded that using butyric acid up to 0.5% in diet can replace antibiotic usage but had no comparative beneficial effect on broiler productivity at 21 days.


2020 ◽  
Vol 6 ◽  
pp. 23-30
Author(s):  
Oluwafemi R.A ◽  
Bamigboye Samson. O ◽  
Olaitan Dayo

 This study was carried to evaluate the “Effect of Garlic (Allium sativum) oil inclusion on nutrient digestibility and caeca microbial population of broiler chickens”. A total of 180 one- day-old (Arbo acre) broiler chicks of mixed sex purchased from a reputable hatchery was used in this study which lasted for eight (8) weeks. The birds were divided into four experimental groups; each group was further subdivided into three replicates of fifteen birds per each in a Complete Randomized Design (CRD). The garlic (Allum sativum) oil was added to the basal diet at (0.00, 0.1, 0.2, 0.3 %) level respectively. The treatment were T1, T2, T3, and T4 with T1 serving as control. Parameters measured covered nutrient retention and caeca microbial population. The results on nutrient digestibility showed a significant difference (P<0.05) among the treatments. Percentage digestibility of crude protein and crude fibre was significantly (P<0.05) higher in birds fed 0.3% of garlic oil. 


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