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Effect of feeding level on progesterone concentration in early
pregnant multiparous sows.
Night-time melatonin secretion and seasonally delayed puberty in
gilts.
Investigation of a simplified artificial lighting programme to
improve the fertility of sows in commercial piggeries.
Plasma progesterone concentration depends on sampling site in
pigs.
High porcine parvovirus antibodies in sow herds: prevalence and
associated factors.
Changes in feeding level during early pregnancy affect fertility
in gilts.
Effect of a gonadotrophin-releasing hormone antagonist on
luteinising hormone secretion and early pregnancy in gilts.
Early disruption of pregnancy as a manifestation of seasonal
infertility in pigs.
The
pattern of melatonin secretion is rhythmic in the domestic pig and
responds rapidly to changes in daylength.
Effects of active and passive gonadotrophin-releasing hormone
immunization on recognition and establishment of pregnancy in pigs.
The
photophase light intensity does not affect the scotophase melatonin
response in the domestic pig.
Seasonal alterations in circadian melatonin rhythms of the European
wild boar and domestic gilt.
Factors effecting reproduction in the pig: seasonal effects and
restricted feeding of the pregnant gilt and sow.
A
practical method for non-surgically inserting intra-arterial
catheters in European wild boars (Sus scrofa).
Regional eradication of Mycoplasma hyopneumoniae from pig herds and
documentation of freedom of the disease.
Seasonal effects on reproduction in the domestic sow in Finland--a
herd record study.
Seasonal and management effects on fertility of the sow: a
descriptive study.
Altered secretion of LH does not explain seasonal effects on early
pregnancy in gilts.
Effect of feed restriction and season on LH and prolactin secretion,
adrenal response, insulin and FFA in group housed pregnant gilts.
Väitökset
Juha Virolainen
Post-breeding effects of feeding on reproduction in gilts and
sows.
Olli Peltoniemi
Seasonal manifestations in reproduction in gilts and sows :
experimentaland epidemiological studies.
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