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Cattle breeding season 🐮🐮🐮🐮🐮🐮🐮

Swagx Vet Clinic
A 60–90 day controlled cattle breeding season, typically scheduled to align calving with optimal spring grazing (often 6–8 weeks before), maximizes fertility and herd uniformity. Key practices include conducting bull breeding soundness exams 30 days prior, managing nutrition, and aiming for a 9-month gestation cycle.

Key Aspects of Cattle Breeding Season

(1) Season Structure: While some producers allow year-round breeding, a 60- to 90-day window is recommended to improve calf uniformity, health management, and marketing efficiency.

(2) Optimal Timing: The goal is to have cows calve 6–8 weeks before, or at the start of, the best pasture growth.

(3) Preparation: Bulls should undergo soundness exams at least 30 days before turn-out. Nutritional management is critical, as mineral deficiencies (copper, selenium, etc.) can significantly reduce conception rates.

(4) Bull Power: A mature bull can typically cover 25–30 cows, while younger bulls (12–15 months) should be limited to 12–15 cows.

(5) Gestation: Cows are pregnant for approximately 279–292 days.


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This image provides an overview of Malignant Catarrhal Fever (MCF), a fatal disease in cattle.
Etiology: It is caused by the Gammaherpesvirus (OvHV-2), commonly referred to as sheep-associated MCF.
Transmission: Transmission occurs through direct contact with infected sheep or wildlife (reservoir hosts).
Clinical Signs: Symptoms include high fever, severe depression, hemorrhagic diarrhea, bloody urine, corneal opacity, and muco-purulent discharge.
Diagnosis and Control: Diagnosis involves PCR testing for viral DNA or serology, with treatment largely restricted to supportive care.

Normal Anterior Presentation of Foetus in the Dam 🐮🐮🐮🐮🐮🐮🐮🐮🐮🐮 Swagx Vet Clinic

Normal anterior presentation in cows is the most common and ideal birth posture (longitudinal, dorsosacral), where the calf enters the birth canal head-first, with its spine up and both front feet (hooves facing down) extended beneath the head. This allows the shoulders and head to pass easily.

Key Features of Normal Anterior Presentation

(1) Position: Dorsosacral (the calf's back is against the cow's spine).

(2) Posture: The head, neck, and both forelimbs are extended into the pelvis, with the nose resting between the knees.

(3) Signs: Two front hooves are visible or felt, with the joints bending downward (in the same direction as the knees).

(4) Progression: As the calf emerges, the shoulders will follow the head, passing through the pelvic inlet, and the calf should be delivered without requiring excessive traction.

Important Considerations

(1) Dystocia Identification: If one or both legs are bent back, or the head is turned, it is an abnormal presentation requiring immediate intervention.

(2) Checkpoints: The rear legs (hocks) bend in the opposite direction of front legs (knees), which is a key distinguishing feature if the presentation is actually a posterior (rear-first) presentation.

(3) Safety: The calving time management guidelines from Washington State University (WSU) emphasize that proper fetal positioning, along with timely assistance for heifers, is key to preventing calving difficulties.

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