The effect of naked oats (<i>Avena nuda</i> L.) used in feeding gilts on their sexual activity
The study was carried out on 180 Polish Landrace gilts. Three gilts were selected from each of 60 litters. When their body weight had reached about 30 kg, the gilts were divided into three groups, two experimental and one control, with 60 individuals per group. The mixture fed to the experimental gr...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2015-03-01
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| Series: | Archives Animal Breeding |
| Online Access: | http://www.arch-anim-breed.net/58/7/2015/aab-58-7-2015.pdf |
| Summary: | The study was carried out on 180 Polish Landrace gilts. Three gilts were
selected from each of 60 litters. When their body weight had reached about
30 kg, the gilts were divided into three groups, two experimental and one
control, with 60 individuals per group. The mixture fed to the experimental
groups contained 40 % (D<sub>1</sub>) and 20 % (D<sub>2</sub>) naked oats of the
Akt variety. Sexual activity was observed in the gilts during the first,
second and third oestrus. The occurrence of the standing reflex was tested
twice a day, in the morning and afternoon, and its duration was determined
by timing the positive reaction to a boar, to touch and to mounting. The
first oestrus occurred earliest in the experimental gilts (group D<sub>1</sub>) at
an average age of 178.2 days, i.e. 8.7 days earlier than in the control
group. Analysis of the 17-β-estradiol level in the blood serum of the
experimental gilts showed that the feed rations containing naked oats had a
beneficial effect on the secretion of this hormone. |
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| ISSN: | 0003-9438 2363-9822 |