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Accession number;04A0543124
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| Title;Ultrasonographic Evaluation of the Corpus-luteum Function in Holstein Cows |
| Author;
KANEKO KAZUYUKI
(Azabu Univ., Sch. of Vet. Med.)
MACHIDA IKUKO
(Azabu Univ., Sch. of Vet. Med.)
IKI NAOFUMI
(Azabu Univ., Sch. of Vet. Med.)
SAWADA HARUKI
(Azabu Univ., Sch. of Vet. Med.)
KAWAKAMI SHIZUO
(Azabu Univ., Sch. of Vet. Med.)
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Journal Title;Journal of the Japan Veterinary Medical Association
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Journal Code:Y0220A
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ISSN:0446-6454
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VOL.57;NO.7;PAGE.431-434(2004)
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| Figure&Table&Reference;TBL.3, REF.24 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;To evaluate the progesterone-secreting function of the corpus luteum objectively, ultrasonographic measurements were made of the luteal-tissue area and the central luteal cavity; and progesterone concentration (P4) was determined by means of enzyme immunoassay 8-10 days following estrus. Observation of the corpus luteum in 153/154 cows showed plasma P4 concentration of more than 1ng/ml. These concentrations were lowest when the luteal-tissue area was less than 3cm2 and grew higher as that area increased. The presence and size of a central luteal cavity exerted no influence on either plasma P4 concentration or luteal-tissue area. These results suggest that ultrasonographic measurement of the corpus-luteum area is useful in assessing progesterone-secreting ability. (author abst.) |
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