Studies on embryonic estrogen synthesis in swine
Literatur
Niemann H, Elsaesser F, Hoppen HO (1988) Studies on embryonic estrogen synthesis in swine. Theriogenol 29:284
The presence of an additional fetal membrane and its function in the newborn guanaco (Lama guanacoe)
Literatur
Merkt H, Böer M, Rath D, Schoon HA (1988) The presence of an additional fetal membrane and its function in the newborn guanaco (Lama guanacoe). Theriogenol 30(3):437-439, doi:10.1016/0093-691X(88)90192-6
Effects of slitting the zona pellucida and its subsequent sealing on freeze-thaw survival of day 7 bovine embryos
Literatur
Niemann H, Pryor JH, Bondioli KR (1987) Effects of slitting the zona pellucida and its subsequent sealing on freeze-thaw survival of day 7 bovine embryos. Theriogenol 28(5):675-681, doi:10.1016/0093-691X(87)90284-6
The role of estradiol-178 in the development of zona pellucida intact pig embryos
Literatur
Niemann H, Elsaesser F, Smidt D (1986) The role of estradiol-178 in the development of zona pellucida intact pig embryos. Theriogenol 25:177
An approach to successful freezing of demi-embryos derived from day-7 bovine embryos
Literatur
Niemann H, Brem G, Sacher B, Smidt D, Krausslich H (1986) An approach to successful freezing of demi-embryos derived from day-7 bovine embryos. Theriogenol 25(4):519-524, doi:10.1016/0093-691X(86)90135-4
Sensitivity of pig morulae to DMSO/PVP or glycerol treatment and cooling to 10° C
Literatur
Niemann H (1985) Sensitivity of pig morulae to DMSO/PVP or glycerol treatment and cooling to 10° C. Theriogenol 23:213
Freezing of bovine embryos : effects of a one-step addition of 1.4 M glycerol
Literatur
Niemann H (1985) Freezing of bovine embryos : effects of a one-step addition of 1.4 M glycerol. Theriogenol 23(2):369-379, doi:10.1016/0093-691X(85)90039-1
Pregnancy rates relative to recipient plasma progesterone levels on the day of nonsurgical transfer of frozen/thawed bovine embryos
Literatur
Niemann H, Sacher B, Elsaesser F (1985) Pregnancy rates relative to recipient plasma progesterone levels on the day of nonsurgical transfer of frozen/thawed bovine embryos. Theriogenol 23(4):631-639, doi:10.1016/0093-691X(85)90197-9
Uptake and effects of ovarian steroids in the early pig embryo : in vitro and in vivo studies
Literatur
Niemann H, Elsaesser F (1984) Uptake and effects of ovarian steroids in the early pig embryo : in vitro and in vivo studies. Theriogenol 21(1):84-102, doi:10.1016/0093-691X(84)90309-1
Improvement of survival rates of bovine blastocysts with sucrose for glycerol dilution after a fast freezing and thawing method
Literatur
Niemann H, Sacher B, Schilling E, Smidt D (1982) Improvement of survival rates of bovine blastocysts with sucrose for glycerol dilution after a fast freezing and thawing method. Theriogenol 17:102