Registration of oestrus duration can help to improve insemination strategies at commercial pig farms

Reproduction in Domestic Animals

Volumn 34, Issue 3-4, 1999, Pages 329-333

  Steverink, D W B ^a   Soede, N M ^a   Kemp, B ^a  

^a WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0006879640     PISSN: 09366768     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1439-0531.1999.tb01260.x     Document Type: Article

References (12)

1. De Winter PJJ, Verdonck M, de Kruiff A, de Vriese LA, Haesebrouck F, 1992: Endometritis and vaginal discharge in the sow. Anim Reprod Sci 29, 51-58.
2. Kemp B, Soede NM, 1996: Weaning to estrus interval in relation to timing of ovulation and fertilization results in sows. J Anim Sci 74, 944-949.
3. Kemp B, Soede NM, 1997: Consequences of variation in interval from insemination to ovulation on fertilization in pigs. J Reprod Fertil (Suppl) 52, 79-89.
4. Nissen AK, Soede NM, Hyrtel P, Schmidt M, D'Hoore L, 1997: The influence of time of insemination relative to time of ovulation on farrowing frequency and litter size in sows, as investigated by ultrasonography. Theriogenology 47, 1571-1582.
5. Rozeboom KJ, Troedsson MHT, Shurson GC, Hawton JD, Carbo BG, 1997: Late estrus or metestrus insemination after estrual insemination decreases farrowing rate and litter size in swine. J Anim Sci 75, 2323-2327.
6. SAS, 1997: User's guide SAS Institute Inc., Cary, NC Soede NM, Kemp B. 1997: Expression of oestrus and timing of ovulation in pigs. J Reprod Fertil (Suppl) 52, 91-103.
7. Soede NM, Wetzels CCH, Zondag W, de Koning MAI, Kemp B, 1995a: Effects of time of insemination relative to ovulation, as determined by ultra-sonography, on fertilization rate and accessory sperm count in sows. J Reprod Fertil 104, 99-106.
8. Soede NM, Wetzels CCH, Zondag W, Hazeleger W, Kemp B. 1995b: Effects of a second insemination after ovulation on fertilization rate and accessory sperm count in sows. J Reprod Fertil 105, 135-140.
9. Steverink DWB, Soede NM, Bouwman EG, Kemp B, 1997: Influence of insemination-ovulation interval and sperm cell dose on fertilization in sows. J Reprod Fertil 111, 165-171.
10. Steverink DWB, Kemp B, Soede NM, 1998a: A simulation model including oestrus characteristics, fertilisation rate, embryonic and foetal mortality to study insemination strategies in pigs: I Model development, (in Prep.)
11. Steverink DWB, Soede NM, GJR Groenland, van Schie FW, Noordhuizen JPTM, Kemp B, 1998b: Estrus duration in relation to reproduction results in pigs on commercial farms, (submitted to J Anim Sci)
12. Weitze KF, Wagner-Rietschel H, Waberski D, Richter L, Krieter L. 1994: The onset of heat after weaning, heat duration and ovulation as major factors in AI timing in sows. Reprod Dom Anim 91, 349-363.