Follicular Cyst in Cow-part 1: Janwar ka bar bar heat main ana: Repeat breeding cow: Diagnosis & Rx

Описание: Introduction
Ovarian cysts in cows are of two types. One is luteal cyst, whereas other is follicular cyst. Generically they are greater than 25 mm in size. In luteal cyst animal remains in anestrus (no heat signs), while in follicular cyst animal keep on showing estrus signs within 8-10 days gap. Follicular cyst is one of the cause of repeat breeding in cows.

Signs
1. Cow keep on showing heat in 8-10 days duration or irregular estrus.
2. Cow keep on releasing mucus irrespective of cycle date and even after insemination.
3. Cow seems always in heat.
4. Cow with follicular cyst detect any cow in the herd which is in heat. She will be first on to jump on her. That's why these cows are often regarded as teaser bulls of herd.
5. They got lot of weight and show bull like appearance and behavior often regarded as buller cows.
6. Cows with chronic follicular cyst have elevated tail head and relaxation of pelvic ligaments which is mostly seen in cows near parturition.
7. These cows are described as nymphomaniac.
8. Some fresh cows with high milk production having follicular cyst often remain silent (anestrus).

Diagnosis
1. Palpation (increase in size of ovary).
2. Signs and symptoms
3. Ultrasonography for measuring the size of cyst. Previously, the follicular size more than 25mm was accepted as cyst, whereas, recent literature showed that 17,18 mm non ovulating follicle can be act as follicular cyst. Even some cyst are small having multiple walls which are regarded as polycystic.
4. Further, Ultrasonography must be used to differentiate between follicular and luteal cyst by measuring wall thickness.  more than 2mm luteal cyst, less than 2mm follicular cyst.

Treatment
1. Double dose GnRH or
2. hcG
3. CIDR/PRID
4. Double doss GnRH , after 11 days PG
5. Ovsych protocol with double dose GnRH
5. Cyst aspiration
6. Unilateral ovariectomy

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