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Abstract

Since 1970 a method of reproduction control based on heat synchronization developed by the Research Centre, Dummerstorf (DDR) has been used successfully in a large number of agricultural co-operatives. Together with efficient organization of artificial insemination this had led to considerable...

Author(s)
Ahrens, M.; Bergfeld, J.; Brand, E.; Braune, S.; Elze, K.; Fritzsch, M.; Haaker, S.; Huhn, U.
Citation
Monatshefte fur Veterinarmedizin, 1975, 30, 6, pp 208-211
Abstract

Two series of experiments were carried out with 2340 gilts on commercial farms. Oestrus was synchronised by feeding 5 g Turisynchron (methallibure) daily for 20 days beginning at about 250 days of age and then injecting 1000 IU PMS followed later by 250 or 500 IU HCG. The effect on fertility of HCG ...

Author(s)
Reuther, E.; Fritzsch, M.; Bergfeld, J.; Sieland, W.
Citation
Monatshefte fur Veterinarmedizin, 1975, 30, 6, pp 217-223
Abstract

Two series of experiments were carried out in 1971 and 1973 with 2032 sows on commercial farms; 24 h after weaning their litters they were given 1250 IU PMS and later 250 or 500 IU HCG. Insemination followed irrespective of whether sows were on heat or not. The effect on fertility of HCG dosage and ...

Author(s)
Reuther, E.; Fritzsch, M.; Bergfeld, J.; Sieland, W.
Citation
Monatshefte fur Veterinarmedizin, 1975, 30, 6, pp 211-216
Abstract

Data are tabulated on the performance of 816 synchronised gilts treated with 1000 IU PMS and inseminated when exhibiting the standing reflex and on 349 gilts with synchronised ovulation (treated with 1000 IU PMS followed by 500 IU HCG 3 days later) and timed insemination (regardless of signs of...

Author(s)
Sieland, W.; Fritzsch, M.; Huhn, U.; Volkel, B.
Citation
Tierzucht, 1975, 29, 6, pp 263-267