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Abstract

Data on 16 383 sows and gilts in which ovulation was synchronized by means of treatment with gonadotropins prior to 2 inseminations, irrespective of signs of oestrus, were analysed. For ♀♀ injected with Gonavet 56 h after PMSG treatment, CR was 79.7%, litter size at birth averaged 11.03 piglets,...

Author(s)
Henze, A.; Maronde, J.
Citation
Tierzucht, 1990, 44, 8, pp 378-380
Abstract

At 2 farms, synchronized ovulation and timed inseminations were carried out in sows weaned after 43 or 49 days of lactation. 1000 IU PMSG was given 24 h after weaning, followed 56 or 57 h later by 300 IU HCG, alone or in combination with 300 IU GnRH. Sows were inseminated 24 or 27 h after the last...

Author(s)
Roost, H.; Kröger, H.; Schuckmann, B.
Citation
Monatshefte für Veterinärmedizin, 1986, 41, 14, pp 492-495
Abstract

In 1985, in the German Democratic Republic, 1 913 706 sow inseminations were carried out, of which 1 787 477 were 1st inseminations; the number of inseminated ♀♀ represented 81.3% of the total population. The av. CR was 79.9%, the number of liveborn piglets per litter averaged 10.20 and the number...

Author(s)
Keil, H.W.; Sondermann, R.; Hühn, U.; Henze, A.
Citation
Tierzucht, 1986, 40, 6, pp 260-262
Abstract

Oestrus was synchronised in 183 gilts and 366 sows by treatment with PMSG + HCG, and fixed-time AI was carried out. Among them, groups of experimental females received a supplementary injection of 0.5 or 1.0 mg oestradiol benzoate 1/2 or 10 h before the HCG injection. In experimental gilts and...

Author(s)
Huhn, U.
Citation
Monatshefte fur Veterinarmedizin, 1978, 33, 24, pp 938-939
Abstract

Data were analysed on 1159 sows which were allowed to suckle their litters for 42 days, and were then given hormones to synchronise oestrus. Firstly, a comparison was made between set times for AI after cessation of hormone treatment. When sows were given a double insemination 12 and 24 h after HCG ...

Author(s)
Schwarze, D.; Schlegel, W.
Citation
Monatshefte fur Veterinarmedizin, 1975, 30, 19, pp 725-727