Short communication. Real-time ultrasonography for early pregnancy diagnosis and incidence of embryonic/foetal mortality in farmed Iberian red deer hinds
Abstract
The main objective of the present study was to evaluate the accuracy of the trans-rectal ultrasonography technique applied to the Iberian red deer hinds since it has not been previously documented in Spain. Experimentation was also used to test the hypothesis that a lower fertility in young hinds could be due to an increment in embryonic or foetal mortality. For this purpose, 116 hinds divided in three groups depending on its age (young, adults and senescent) were examined by rectal ultrasonography and the different foetal structures measured two months after the males were removed from the groups of hinds. With these data, specificity and predictive value of negative diagnoses of the technique has been calculated. Trans-rectal ultrasonography is an accurate technique to use in Iberian red deer dams with overall levels of pregnant detection near to 92%. Finally, the youngest hinds showed poorer fertility rates (17.24% vs. 59.30% and 58.33% of senescent and prime-age respectively) and also higher of embryonic or foetal mortality (2 deaths out of 7 positive pregnant diagnoses compared with no deaths in the senescent group and 4 deaths out of 39 positive pregnant diagnoses in the prime-age group).Downloads
References
Agresti A., 1990. Categorical data analysis. John Wiley and Sons, NJ, USA. 558 pp. PMCid:54716
Aiumlamai S., Fredriksson G., Nilsfors L., 1992. Real-time utrasonography for determining the gestational age of ewes. Vet Rec 131, 560-562. PMid:1481347
Albon S.D., Mitchell B., Huby B.J., Brown D., 1986. Fertility in female red deer (Cervus elaphus): The effects of body composition, age and reproductive status. J Zool 209 (3), 447-460. http://dx.doi.org/10.1111/j.1469-7998.1986.tb03603.x
Ansorge H., Grunwald J., Jeschke D., 1999. Alterstruktur und Reproduktion des Rotwildes (Cervus elaphus) in der Säschsischen Schweiz. Beitr Judg-Wildfursch 24, 133-138. [In German].
Audigé L., Wilson P.R., Morris R.S., 1999a. A body condition score for use in farmed red deer (Cervus elaphus). N Zeal J Agric Res 41(4), 545-553. http://dx.doi.org/10.1080/00288233.1998.9513337
Audigé L., Wilson P.R., Morris R.S., 1999b. Reproductive performance of farmed red deer (Cervus elaphus) in New Zealand I: Descriptive analysis. Anim Reprod Sci 55(2), 127-141. http://dx.doi.org/10.1016/S0378-4320(99)00003-2
Audigé L., Wilson P.R., Pfeiffer D.U., Morris R.S., 1999c. Reproductive performance of farmed red deer (Cervus elaphus) in New Zealand II: Risk factors for adult hind conception. Prev Vet Med 40, 33-51. http://dx.doi.org/10.1016/S0167-5877(99)00008-2
Bingham C.M., Wilson P.R., Davies A.S., 1988. Realtime ultrasonic scanning for estimation of foetal age in farmed red deer. Proc Deer Course for Veterinarians No. 5. N Zeal Vet Assoc Deer Branch. Jan, 1988. pp 41-54.
Bingham C.M., Wilson P.R., Davies A.S., 1990. Realtime ultrasonography for pregnancy diagnosis and estimation of fetal age in farmed red deer. Vet Rec 126, 102-106. PMid:2408225
Carrión D., Estévez J.A., Gaspar-López E., Olguín C.A., Ceacero F., Albiñana B., Gómez J.A., Landete-Castillejos T., Gallego L., García A.J., 2009. Fertilidad y capacidad de cría en ciervas ibéricas (Cervus elaphus hispanicus). AIDA, XIII Jornadas sobre Producción Animal. Zaragoza, Spain, 12-13 May, pp 666-668. [In Spanish].
Clutton-Brock T.H., Albon S.D., Guinness F.E., 1989. Fitness costs of gestation and lactation in wild mammals. Nature 337, 260-262. http://dx.doi.org/10.1038/337260a0 PMid:2911365
Fennessy P.F., Fisher M.W., Webster J.R., Mackintosh C.G., Suttie J.M., Pearse A.J., Carson I.D., 1986. Manipulation of reproduction in red deer. Proc Deer Course for Veterinarians No. 3. N Zeal Vet Assoc Deer Branch. Jan, 1986. pp 103-120.
Flueck W.T., 1994. Relationship between body weight, lipid reserves, and ovulation rate in non-equatorial cervids: a hypothesis. Z Jadgwiss 40, 12-21.
Frisch R.E., 1984. Body fat, puberty and fertility. Biol Rev 59(2), 161-188. http://dx.doi.org/10.1111/j.1469-185X.1984.tb00406.x PMid:6375750
García A.J., Landete-Castillejos T., Garde J.J., Gallego L., 2002. Reproductive seasonality in female Iberian red deer (Cervus elaphus hispanicus). Theriogenology 58, 1553-1562. http://dx.doi.org/10.1016/S0093-691X(02)01048-8
Kahn W., Achtzehn J., Kahn B., Richter A., Schulz J., Wolf M., 1993. Sonography of pregnancy in sheep. II. Accuracy of transrectal and transcutaneous pregnancy diagnosis. Deut Tierarztl Woch 100(1), 29-31.
Langvatn R., Albon S.D., Burkey T., Cluttonbrock T.H., 1996. Climate, plant phenology and variation in age of first reproduction in a temperate herbivore. J Anim Ecol 65, 653-670. http://dx.doi.org/10.2307/5744
Mulley R.C., English A.W., Rawlinson R.J., Chapple R.S., 1987. Pregnancy diagnosis of fallow deer by ultrasonography. Aus Vet J 64(8), 257-258.
Reichle J.K., Haibel G.K., 1991. Ultrasonic biparietal diameter of second trimester Pygmy goat fetuses. Theriogenology 35, 689-694. http://dx.doi.org/10.1016/0093-691X(91)90409-7
Revol B., Wilson P.R., 1990. Rectal ultrasonographic pregnancy diagnosis and foetal ageing of red deer, Massey University. Palmerston North, New Zealand. 133 pp. PMCid:1014219
Smith R.B., Lindzey F.G., 1982. Use of ultrasound for detecting pregnancy in mule deer. J Wildl Man 46(4), 1089-1092. http://dx.doi.org/10.2307/3808248
White I.R., Mckelvey W.A.C., Busby S., Sneddon A., Hamilton W.J., 1989. Diagnosis of pregnancy and prediction of foetal age in red deer by real-time ultrasonic scanning. Vet Rec 124, 395-397. http://dx.doi.org/10.1136/vr.124.15.395 PMid:2658297
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