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Factors Affecting the Incidence of Necrotic Enteritis, Caecal Carriage of Clostridium perfringens and Bird Performance in Broiler Chicks
Factorer som inverkar på förekomsten av nekrotisk enterit, Clostridium perfringens i blindtarmarna och produktionsresultat hos slaktkycklingar
Acta Veterinaria Scandinavica volume 33, pages 369–378 (1992)
Abstract
Two trials were conducted to study the effects of a competitive exclusion (CE) product BROILACT® and the anticoccidial narasin on the incidence of necrotic enteritis (NE), the numbers of Clostridium perfringens (CP) in the caeca of broiler chicks and the performance of the birds. In trial 1 the effects of type of protein and partial replacement of a narasin containing diet with whole wheat were also studied. All groups of chicks were studied up to the point of slaughter at 43 days of age and after evisceration in a processing plant to determine slaughter yield.
In trial 1, statistically significant results included the following: CE-treatment reduced total mortality, and incidence of NE, on diet containing animal but not vegetable protein. Caecal carriage of CP was also reduced, while slaughter yield increased. Narasin reduced caecal carriage of CP and increased both growth rate and slaughter yield in both trials. Whole wheat replacement improved feed conversion but reduced bird growth rate. In trial 2, both CE-treatment and narasin influenced feed intake, CE-treatment significantly only at days 22 and 44. Narasin improved feed conversion until 5 weeks of age and CE-treatment did so until 22 days of age. In both trials, there was also an interaction effect indicating that CE-treatment increased slaughter yield for birds that were not fed narasin.
Sammanfattning
I 2 försök duschades nykläckta slaktkycklingar med en bakteriekultur bestående av en normal bakterieflora från vuxna höns (BROILACT®). Syftet var att studera effekten av s k “competitive exclusion” på Clostridium perfringens (CP) i blindtarmarna och förekomsten av nekrotisk enterit (NE) samt kycklingarnas produktionsresultat. Samtidigt prövades effekten av ett koccidiostatikum (narasin), och i försök 1 också effekten av foder med olika proteinkällor samt effekten av att tillsätta hel vete till foderblandningar med narasin.
I försök 1 bestod vart och ett av de 12 försöksleden av 3 grupper á 150 kycklingar. I försök 2 med 4 försöksled fanns 9 sådana upprepningar. Försöken pågick i ca 6 veckor och med slakt.
I båda försöken gav narasin lägre innehåll av CP, lägre frekvens av NE, bättre tillväxt och högre slaktutbyte. I försök 1 hade Broilactbehandlade kycklingar lägre dödlighet och lägre frekvens av NE då de fick ett foder med animaliskt protein. Broilactkycklingar hade också lägre antal av CP i blindtarmarna i jämförelse med obehandlade kycklingar som inte fått narasin. Hel vete förbättrade foderutnyttjandet men sänkte tillväxthastigheten. I försök 2 gav både narasin och BROILACT® högre foderintag. Narasin gav lägre foderkvot upp till 5 veckors ålder medan förhållandet var omvänt vid slakt efter tillbakahållningsperioden. I båda försöken fanns också ett signifikant samspel mellan narasin och BROILACT® avseende slaktutbyte. Kycklingar som vare sig behandlats med BROILACT® eller fått foder med narasin hade lägre slaktutbyte än övriga.
References
Anonymous: Nordic Committee on Food Analyses. 1985. No 95, 2nd edition.
Barnes EM, Impey CS, Cooper DM: Manipulation of the crop and intestinal flora of the newly hatched chick. Amer. J. clin. Nutr. 1980, 33, 2426–2433.
Dykstra DD, Reid WM: Monensin, Eimeria tenella infection, and effects on the bacterial populations in the ceca of gnotobiotic chickens. Poult. Sci. 1977, 57, 398–402.
Elwinger K, Engström B, Berndtson E, Fossum O, Teglöf B: The effects of narasin on Clostridium perfringens in caeca and the occurrence of nectrotic enteritis in broiler chickens. Proceedings XIX World Poultry Congress, Amsterdam, The Netherlands, 1992, Vol. 3, pp. 580–584.
Elwinger K, Engström B, Fossum O, Holmlund A, Teglöf B: A note on the effect of a coccidiostat on the occurrence of Clostridium perfringens in jejunum and caecum of broilers. Department of Animal Science, Swedish University of Agricultural Sciences, Uppsala, 1990, Preliminary report.
Elwinger K, Teglöf B: Försök med hel vete till slaktkycklingar. (Feeding of whole wheat to broilers). Fjäderfä 1992, 85:2, 20–21.
Fukata T, Hadate E, Baba E, Arakawa A: Influence of bacteria on Clostridium perfringens infections in young chickens. Avian Dis. 1991, 35, 224–227.
Guneratne JRM, Gard DI: A comparison of three continuous and four shuttle anticoccidial programs. Poult. Sci. 1991, 70, 1888–1894.
Hutchison TWS, Riddel C: A study of hepatic lesions in broiler chickens at processing plants in Saskatchewan. Canad. vet. J. 1990, 31, 20–25.
Jansson L, Elwinger K, Engström B, Fossum O, Teglöf B: Test of the efficacy of virginiamycin and dietary enzyme supplementation against necrotic enteritis infection in broilers. 8th European Poultry Conference, Barcelona, Spain 1990, pp. 556–559
Kondo F: In vitro lecithinase activity and sensitivity to 22 antimicrobial agents of Clostridium perfringens isolated from necrotic enteritis of broiler chickens. Res. vet. Sci. 1988, 45, 337–340.
Mead GC, Impey CS: The present status of the Nurmi Concept for reducing carriage of food-poisoning salmonella and other pathogens in live poultry. In: Smulders FJM (ed.): Organisms from meat and poultry. Elsevier, Amsterdam 1987, pp. 57–77.
Mörck J: Personal communication 1991.
Nurmi E, Rantala M: New aspects of Salmonella infection in broiler production. Nature 1973, 241, 210–211.
Nurmi EV, Schmitz CE, Mäkelä PH: Process for the production of a bacterial preparation for the prophylaxis of intestinal disturbances in poultry. United States Patent 1987, 4, 689, 226.
Onderka DK, Langevin CC, Hanson JA: Fibrosing cholehepatitis in broiler chickens induced by bile duct ligations of or inoculation of Clostridium perfringens. Canad. J. vet. Res. 1990, 54, 285–290.
Petersen B: Foderundersogelsen, Januari 1991 - juni 1991, (The feed investigation, January 1991– June 1991). Rapport nr 25, Landsutvalget for fjerkrae 1991.
SAS Institute Inc: SAS User’s Guide: Statistics, Version 5. Cary, NCSAS Institute Inc., 1985, 956 pp.
Schneitz C, Häkkinen M, Nuotio L, Nurmi E, Mead G: Droplet application for protecting chicks against salmonella colonisation by competitive exclusion. Vet. Rec. 1990, 126, 510.
Snedecor GW, Cochran WG: Statistical Methods. 6th edition. Iowa State University Press, Ames, Iowa, USA 1968.
Snoeyenbos GH, Weinack OM, Soerjadi AS: Competitive exclusion of some pathogens other than Salmonella by native intestinal microflora of chickens. Abstracts, XXII World Veterinary Congress, Perth, Australia , 1983, p. 191.
Teglöf B: Försök med hel vete till slaktkyckling (Feeding of whole wheat to broilers). Fjäderfä 1990, 83, 310.
Wierup M, Wold-Troell M, Nurmi E, Hakkinen M: Epidemiological evaluation of the salmonella-controlling effect of a nationwide use of competitive exclusion culture in poultry. Poult. Sci. 1988, 67, 1026–1033.
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Elwinger, K., Schneitz, C., Berndtson, E. et al. Factors Affecting the Incidence of Necrotic Enteritis, Caecal Carriage of Clostridium perfringens and Bird Performance in Broiler Chicks. Acta Vet Scand 33, 369–378 (1992). https://doi.org/10.1186/BF03547304
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DOI: https://doi.org/10.1186/BF03547304