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Some Factors Causing Mortality among Female Minks during the Puerperium and Lactation Periods

Några faktorer som påverkar dödligheten hos minkhonor under dräktighets- och digivingsperioderna

Abstract

The purpose of this study, in which the farm was used as the statistical unit, was to find factors affecting mink mortality under farm conditions. Mortality was hypothesised to be affected by factors including, among others, variables describing the amount (level) and variation in composition and quality of the feed. Other explanatory variables applied in the study included farm size and age. Factor analyses were performed for variables of feed composition and quality in order to condense the variable information and to facilitate the selection of explanatory variables. This report presents a preliminary regression model for female mink mortality factors describing feed level and variation, and farm size, as explanatory variables. The regression model emphasized among other factors the importance of a constant albumin quality and a constant energy level.

Sammanfattning

Avsikten med undersökningen, i vilken den enskilda minkfarmen användes som statistisk enhet, var att finna faktorer, som påverkar dödligheten hos farmade minkar. Dödligheten antogs bero av faktorer som inkluderar bland andra sådana variabler som beskriver mängden och Variationen samt kvaliteten hos fodret. Andra förklarande variabler som användes i denna undersökning var farmens storlek och åider. För att komprimera variablinformationen och för att underlätta valet av förklarande variabler för sammansättning och kvalitet användes faktoranalys. Den här rapporten presenterar en preliminär regressionsmodell för faktorer, vilka beskriver dödligheten hos minkhonor med användandet av foderhalten och dess variation samt farmstorlek som förklarande variabler. Regressionsmodellen påvisade särskilt bland andra faktorer vikten av en konstant protein kvalitet och en konstant energihalt.

References

  • Aasted B: Aleutian disease of mink. Virology and Immunology. Acta path, microbiol. immunol. scand., Sect C 1985, 93, suppl. 287.

    Google Scholar 

  • Brach W: Untersuchungen über den Einfluss von Fluglärm auf die peri- und postpartalen Verluste beim Farmnerz (Mustela vison f. dorn.) (Study of the influence of aircraft noise on reproduction mortality and behaviour of the farmed mink (Mustela vison dom.)). Institut für Tierhygiene, Tierärztlichen Hochschule Hannover, Hannover 1983.

  • Bötner AG, Jörgensen PH: An outbreak of excessive neonatal mortality in four Danish mink farms. II Analytic epidemiological investigations. Acta vet. scand.. 1983 24, 399–511.

    Google Scholar 

  • Cox NM, Britt JH, Armstrong WD, Alhusen HD: Effect of feeding fat and altering weaning schedule on rebreeding in primiparous sows. J. Anim. Sci. 1983, 56, 21–29.

    Article  CAS  Google Scholar 

  • Draper NR, Smith H: Applied Regression Analysis. John Wiley & Sons, Ins, New York 1981.

  • Gatel F, Castaing J, Lucbert J: Changes in productivity and culling rate according to pregnancy feed intake and Utter parity. Livest. Prod. Sci. 1987, 17, 247–261.

    Article  Google Scholar 

  • Henrikssen P: Diegivningssyge hos mink. Lactation sickness in mink. Dansk Pelsdyr Avl. 1985, 48, 311–313.

    Google Scholar 

  • Kim J-O, Mueller CW: Factor analysis. Sage Publications, Inc., Beverly Hills 1981.

  • Kim J-O, Mueller CW: Introduction to factor analysis. Sage Publications, Inc., Beverly Hills 1982.

  • Kirkwood RN, Mitaru BN, Gooneratne AD, Blair R, Thacker PA: The influence of dietary energy intake during successive lactations on sow prolificacy. Can. J. Anim. Sci. 1988, 68, 283–290.

    Article  Google Scholar 

  • Harsen S, Alexandersen S, Lund E, Have P, Hansen M: Brief report. Acute interstitial pneumonitis caused by Aleutian disease virus in mink kits. Acta path, microbiol. immunol. scand., Sect. A, 1984, 92, 391–393.

    Google Scholar 

  • Martino PE, Villar JA: El sindrome del higado graso en visonas en gestación y lactancia. (Fatty liver syndrome in pregnant and lactating mink.) Vet. Arg. 1987, 4, 810–812.

    Google Scholar 

  • Montgomery DC, Peck E A: Introduction to linear regression analysis. John Wiley & Sons, Inc., New York 1982.

  • Poulsen JSD, Jörgensen G: The influence of the pH of feed on the acid-base balance of mink. Nord. Vet. Med. 1977, 29, 488–497.

    CAS  PubMed  Google Scholar 

  • Poulsen JSD, Jörgensen G: Examination of mink (Mustela vison) fed a sulphuric acid preserved fish silage during lactation and growth period. Nord. Vet. Med. 1986, 38, 106–118.

    CAS  PubMed  Google Scholar 

  • SAS Institute Inc.: SAS user’s guide: Statistics, Version 5 Ed. SAS Institute Inc., Cary, N.C 1985.

  • Tauson A-H: Effects of lactid acid bacteria as feed additive on reproductive performance and early kit growth rate in mink and blue foxes. Acta agrie, scand. 1984, 34, 485–506.

    Article  Google Scholar 

  • Wahlström K: Orsaker till dödligheten hos mink. Patolog-anatomisk undersökning av dödsorsa-ker i 16 utvalda minkfarmen med lag frekvens plasmacytos. (Some factors causing mortality among minks. The pathology-anatomical study of causes to death in 16 chosen minkfarm which had low frequency of plasmacytosis. ) Vara Päls-djur 1987, 58, 297–309.

    Google Scholar 

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Ingo, R., Luoma, M. & Virtanen, I. Some Factors Causing Mortality among Female Minks during the Puerperium and Lactation Periods. Acta Vet Scand 33, 59–69 (1992). https://doi.org/10.1186/BF03546936

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