Beranda > Informasi > Effects of Pediococcus acidilactici Feed Supplementation On Broiler Chicken Performances, Immunity and Health

Effects of Pediococcus acidilactici Feed Supplementation On Broiler Chicken Performances, Immunity and Health

The development of resistance to certain antibiotics poses real problems to the animal and public health (Barton 2000, Hofacre et al., 2001). Consequently, many additives (prebiotics, probiotics, symbiotics…) raise a particular interest as products of substitution to antibiotics in order to improve the production performances and the health of animals (Bach 2001, Revington 2002).

Pediococcus acidilactici is a probiotic bacterium that presents positive effects on the balance and the role of the intestinal flora, it also reinforces the immune defense and improves the production performances of animals (Jin et al., 2000, Coppola and Turnes 2004, Stella 2005).

The objective of this study is to evaluate the effect of addition of Pediococcus acidilactici in the feed on the production performances (feed intake, weight gain, feed ratio and carcass yield), and on the blood lipids’ concentration and the immunity of broiler chickens.

Material and Methods

The trial has been conducted at the Poultry Centre of Tazoult (Batna), Algeria. This centre is constituted of 10 buildings having the same technical features (materials of construction, surface area, extractors, pad colling, food and watering chains). Buildings having served to the experimentation have a surface area of 1000 m2.

The trial has been conducted on 16 000 chicks of the strain ISA 15, coming from the same hatchery. They were allocated to two treatment groups of 8000 chicks each (control group and experimental group), raised separately in two identical buildings. Animals have been followed during all the trial period of 56 days of raising (from the 23/02 to 19/04/2005). At each weighing, 200 subjects were chosen randomly from both groups for individual weighing.

The feed is supplied by the centre of Tazoult that possesses its own unit of feed manufacture. Three types of feed have been distributed according to periods of raising: a starter feed (d0-d21), a grower feed (d22-d42) and a finisher feed (d43-d56). (Table 1)

Two treatments have been compared in this survey:

A control group (Cont.) receiving a classic feed based on maize and soyabean meal and an experimental group (Exp.) fed with the same feed than the (Cont.) combined with 109 ufc of Pediococcus acidilactici (MY 18/5M) /kg , equivalent to 100 grams of probiotic per ton of feed. Neither antibiotic, nor anticoccidial has been added to the feed.

During the experimental period, feed intake, individual live weight of 200 birds per group, feed ratio and mortality rate have been measured weekly for both treatment groups.

At the end the experimental period 20 chickens from each group have been sacrificed then weighed in order to determine the carcass yield. Two types of yields have been calculated: weight of fat/weight of the carcass and weight of carcass eviscerated/weight of carcass non-eviscerated. The carcass yield permits to measure the probiotic effect on the quality of the carcass.

The number of white blood cells, the serum cholesterol and triglycerides concentration have been determined by blood withdrawals done on 80 chickens chosen randomly from each treatment group.

The statistical analysis has been performed using ANOVA.

Results and Discussion

1.1. Animal production performance

Results of production performances are summarised in Table 2. The evolution of the live weight of the Experimental group is marked, from the sixth week, by a significantly higher live weight than the Control (1703.67±34.4 vs. 1574.11±33.39 g). The average live weight at the end of the experimental period is 2586.48 g and 2252.79 g for the (Exp.) and (Cont.) group respectively, which corresponds to an improvement of 12.89%.

These results agree with the works of Cavazonni et al., (1998) and Stella (2005). Kabir et al., (2004) observed an improvement of the chickens’ weights with other probiotics, however Karaoglu and Dardug (2005) did not establish any effect with Saccharomyces cerevisiae.

During all raising phases, chickens having received a supplemented diet with P. acidilactici presented feed ratios lower than the Control (Table 3). At the eighth week, chickens of the (Cont.) group had a feed ratio slightly higher than that of the (Exp.) group (2.45 vs. 2.37) respectively. Studies done by Pelicano et al., (2004); Silva et al., (2000); Franco et al., (2005) demonstrated an improvement of the feed ratio with chickens fed on probiotics such as Bacillus subtilis, Lactobacillus acidophilus, Saccharomyces cerevisiae and Enterococcus faecium. Johri (2004) did not observe any positive effect on the feed ratio of the chickens when Streptococcus lactis was incorporated in the feed.

The mortality rate in the two treatment groups is almost identical (6.57 vs. 6.51). Siwicki et al., (2005), Ramirez (2005) proved a reduction of the mortality rate due to the addition of probiotics in feeds of chickens.

Results concerning the carcass yield and the abdominal fat are summarised in Table 4. There was a clear influence of the use of P. acididilactici on the final quality of chickens’ carcasses, a significant improvement ((p≤0.01) of the carcass yield is noted (60.40 vs. 66.32%) for (Cont.) and (Exp.) respectively. However there was no significant reduction in the abdominal fat yield for the (Exp.) group in relation to the (Cont.) (1.90 vs. 2.27%). Kalavathy et al., (2003, 2006); Miazzo et al., (2005) observed a significant reduction of the abdominal fat content of the chickens, whereas Pelicano et al., (2004) and Arslan (2004) did not observe any effect of probiotics on the carcass yield of the chickens.

1.2. White blood-cells count

The number of white blood cells has been influenced by the addition of the probiotic in the diet. A significant difference (p≤0.01) has been observed between the (Cont.) group (25260 ± 3258 /mm3) and the (Exp.) group (30365 ± 3210 /mm3). (Table 3)

1.3. Serum lipids concentration

The analysis of serum lipids’ concentration of the broiler chickens is summarised in the table 5. The content in lipids of blood that is represented by triglycerides and cholesterol is reduced in a significant manner (p≤0.01) in the group of chickens receiving P. acidilactici, during all raising phases. This could be explained by the fact that probiotics may possess the property of reducing cholesterol in the blood, which is due to the inhibition of the hepatic synthesis of cholesterol, and to their capacity of déconjuguating the biliary salts (Mercenier et al., 2002; Pereira et al., 2003; Lim et al., 2004). On the other hand, Kanashiro et al., (2001) and Djouvinov et al., (2005) did not observe any variations of cholesterol and triglycerides content in chickens’ blood while using mixture of different strains of probiotics (lactobacillus sp, bacillus sp, enterococcus faecium, streptococcus thermophilus) in the diet.

References / Bibliography

1. Arslan M., Ozcan M., Matur E., Cotelioglu U., Ergul E., 2004. The effects of probiotics on leptin level, body, liver, and abdominal fat weights during the rapid growth phase of broilers. Indian. Vet. J., 81 : 416-420

2. Barton M., 2000. Antibiotic use in animal feed and its impact on human health. Nut. Research Reviews, 13 :299-279

3. Bach Knudsen K.E., 2001. Development of antibiotic resistance and options to replace antimicrobials in animal diets. Proceedings of the Nut. Society, 60: 291-299

4. Cavazzoni V., Adami A., Castrovilli C., 1998. Performance of broiler chickens supplemented with Bacillus coagulans as probiotic. Br. Poult. Sci., 39(4): 526-529

5. Coppola M., Turnes C.G., 2004. Probiotics and immune reponse. Ciencia Rural., Santa Maria, 34 (4) : 1297-1303

6. Djouvinov D., Stefanov M., Boicheva S., Vlaikova T., 2005. Effect of diet formulation on basis of digestible amino acids and supplementation of probiotic on performance of broiler chicks. Trakia Journal of Sciences, 3(1): 61-69

7. Franco S.G., Pedroso C.A., Grigoletti C.E., 2005. Effect of inclusion of yeast (Saccharomyces cerevisae) associated or not with antibiotics in broilers. Ciencia Animal Brasileira,6,(2): 79-85

8. Hofacre C.L., White D.G., Maurer J., Morales C., Lobsinger C., Hudson C., 2001. Characterization of antibiotic-resistant bacteria in rendered animal products. Avian Dis., 45(4): 953-961

9. Jin I.Z., Ho Y., Abdullah N., Jaludin S., 2000. Digestive and bacterial enzyme activities in broilers fed diets supplemented with lactobacillus cultures. Poult. Sci., 79 : 886-891

10. Johri T.S. , 2004. Dietary additives for enhancing nutritional value of feeds. FAO-Roma

11. Kabir S.M.L., Rahman M. M., Rahman M.B., Ahmed S.U., 2004. The dynamic of probiotics on growth performance and immune reponse in broilers. Poult. Sc.; 3(5): 361-364

12. Kalavathy R., Abdullah N., Jalaludin S., Ho Y.W., 2003. Effects of lactobacillus cultures on growth performance, abdominal fat deposition, serum lipid and weight of organs of broiler chickens. Br. Poult. Sci., 44 (1) : 139-144

13. Kalavathy R., Abdullah N., Jalaludin S., Wong M.C., Ho Y.W., 2006. Effects of lactobacillus feed supplementation on cholesterol, fat content and fatty acid composition of the liver, muscle, and carcass of broiler chickens. Anim. Res., 55: 77-82

14. Kanashiro A.M., Bottino J.A., Ferreira F., De Castro A.G., Ferreira A.J., 2001. Influence of probiotic continuous administration to broilers on serum enzymes activities and serum cholesterol concentration. Arq. Inst. Biol., Sao Paulo, 68(2) : 11-17

15. Karaoglu M., Durdag H., 2005. The influence of dietary probiotic (saccharomyces cerevisiae) supplementation and different slaughter age on performance, slaughter and carcass properties of broilers. Inter. Journal of Poult. Sci., 4(5) : 309-316

16. Lim H.L., Kim S.Y., Lee W.K., 2004. Isolation of cholesterol-lowering lactic acid bacteria from human intestine for probiotic use. J. Vet. Sci.,5(4): 391-395

17. Mercenier A. , Pavan S., Pot B., 2002. Probiotics as biotherapeutic agents : Present knowledge and future prospects. Cur. Phar. Design., 8,99-110

18. Miazzo R.D. Peralta M.F., Picco M., 2005. Productive performance and carcass quality in broilers fed yeast (S.cerevisae). Red vet.,6, 12

19. Pelicano E.R., De Souzaa P.A. , Souzaa H.B., Leonel F.R., Zeola N.B., Boiago M., 2004. Productive traits of broilers chickens fed diets containing different growth promoters.Rev.Bras.Cienc.,6(03): 177-182

20. Pereira D.I., Mc Cartney A.L., Gibson G.R., 2003. An in vitro study of the probiotic potential of a bile-salthydrolyzing lactobacillus fermentum strain and determination of its cholesterol-lowering properties. Appl.Environ. Microbiol., 69, (8): 4743-4752

21. Ramirez R.B., Zambrano S.O., Ramirez P.Y., Rodriguez V.Y., Morales M.Y., 2005. Evaluacion del efecto probiotico del lactobacillus spp. Origen aviar en pollitas de inicio reemplazo de ponedora comercial en los primeros 42 dias de edad. Redvet.,6, 9

22. Revington B., 2002. Feeding poultry in the post-antibiotic era. Multi-State Poultry Meeting.

23. Silva E.N., Teixeira A.S., Bertechini A. G., Ferreira C.F., Ventura B.G., 2000. Performance the broiler for chickens in diets with probiotics, antibiotics, and two different phosphorus sources. Cienc. Agrotec., Lavras, 24, 225-232

24. Siwicki A.K., Bielecka M., Wjcik R., Biedrzycka E., 2005. Effect of selected probiotics on non-specific cellular and humoral defense mechanisms and protection against salmonellosis-experimental study in broiler chicken. Roadshow 3. Guthealth support. Poland

25. Stella Alberto V., Fava M., Bersani C.,Del Degan G., Savoini G., Chevaux E., 2005. Effets de l’addition de pediococcus acidilactici dans la ration de poulet de chair sur les performances zootechniques et la microflore intestinale. 6eme JRA-St-Malo, 208-211

AUTHOR: Sihem Chafai, Ibrir Fathia, Nadir Alloui and Ferhat Nouicer – ESPA laboratory, Veterinary Department, Batna University, Algeria
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