23 Result(s)

Chapter

Endocrine Interactions During Lactational Anestrus in Sows

The contribution deals with two aspects of lactational anestrus in the sow: (1) the depth of anestrus weakens with length of lactation, (2) the suckling stimulus and oxytocin release during lactational anestrus.

F. Ellendorff, F. Elsaesser, N. Parvizi… in Endocrine Causes of Seasonal and Lactation… (1985)

Chapter

Advantages and Problems of Using Integrated Systems of Indicators as Compared to Single Traits

Mainly 4 groups of biological indicators are employed in the assessment of animal welfare within animal husbandry and management systems: (1) Physiological, biochemical and biophysical indicators, (2) ethologi...

D. Smidt in Indicators Relevant to Farm Animal Welfare (1983)

Chapter

Application of an Integrated System of Indicators in Animal Welfare Research

The relationship of reactions of farm animals to different housing conditions is studied in cattle and pigs. Methodical possibilities are shown by some examples of using several ethological and physiological p...

M. C. Schlichting, U. Andreae… in Indicators Relevant to Farm Animal Welfare (1983)

Chapter

Effects of Transportation and Pre-Slaughter Holding on Some Blood Parameters and on Meat Quality in Fattening Bulls

Dark-cutting beef seems to be a management problem; it is particularly dependent on the way animals are held during the time shortly before slaughter. In the present experiment the influence of stress on some...

E. Kallweit, J. Unshelm, K. Wemken, D. Smidt in The Problem of Dark-Cutting in Beef (1981)

Article

Reaktor-Sicherheit und menschliche Unzulänglichkeit

Reactor safety is given by the reliable solution of 3 tasks: on-time shutdown, continuous decay-heat removal, safe containment. After describing the general strategy of their solution even under upset conditio...

D. Smidt in The Science of Nature (1979)

Chapter

Survey of the Incidence of Calving Problems, Calf Mortality, and their Economic Importance: Dairy and Dual-Purpose Cattle

This report on calving problems and calf mortality of dairy and dual-purpose breeds in the EEC relies on the following sources of information:

Article

Buchbesprechungen

B. Kanitscheider, H. Mayer-Kaupp, E. Lamla, H. Pick, D. Smidt… in Naturwissenschaften (1975)

Chapter

Tierexperimentelle Ergebnisse zur Beeinflussung der Pubertät

Attempts were made to influence the onset of puberty in male and female pigs (miniature pigs, Improved Landrace) and cattle. The objects of the work were a) to advance the onset of sex function in the interest...

D. Smidt, P. Majerciak in Zentralnervöse Sexualsteuerung (1971)

Chapter

Der Einfluß unterschiedlicher Beleuchtung auf die neurosekretorische Aktivität, Pubertät und Sexualfunktion von Mäusen

723 male and female mice (of SEA, CBA and NMRI strains, and of crosses between them) were placed in permanent darkness (DD: 0 Int. Lux), decreased light (LL_y: 4–30 Int. Lux, 6000–7600 Å), alternating light and da...

F. Ellendorff, D. Smidt in Zentralnervöse Sexualsteuerung (1971)

Article

Temperatur, Luftfeuchtigkeit und Fortpflanzung bei Mäusen

73 mature mice of the SEA und CBA-strains were kept at 36°C, 43–53% RH or 83–100% RH and 22.5°C, 62–67% RH for 10 days (males) and 15 days (females). The results showed that high RH conditions decreased body a...

F. Ellendorff, D. Smidt, M. Monzavifar… in International Journal of Biometeorology (1970)

Article

Temperatur, Luftfeuchtigkeit und Fortpflanzung bei Mäusen

Mature female mice (NMRI, and SEA) were kept for 5–25 days at 21°C or 35°C and 65–70% RH. Then they were mated with a male adapted to 21°C and 10 days later checked for pregnancy, rate of ovulation, and embryo...

M. Monzavifar, F. Ellendorff, D. Smidt in International Journal of Biometeorology (1970)

Article

Endogene und exogene Einflüsse auf Ovarialfunktion und embryonale Entwicklung

Einleitend werden endogene und exogene Einflüsse auf die Ovarial-funktion beschrieben. Die experimentellen Beispiele hierzu beziehen sich auf

D. Smidt in Archiv für Gynäkologie (1969)

Article

Von der Ovulation zur Implantation (Bericht)

R. Buchholz, G. Bettendorf, J. Hammerstein, U. Herlyn, G. Jung… in Archiv für Gynäkologie (1969)