Ultrasonography as Aid for Early Pregnancy Diagnosis in Zebu Cattle in a Natural Mating Programme

Abstract. This study was performed to determine the optimum time for early pregnancy diagnosis with transrectal scanning in ewes. A total of 42 ewes was examined, using a real-time 5 MHz linear-transducer from day 19 to 29 (Group I, n = 22) and from day 30 to 44 (Group II, n = 20) after AI or natural mating. Ultrasonic results were compared with lambing records. Accuracy, sensitivity, specivity, positive and negative predictive values for these tests were 77.3 %, 84.2 %, 33.3 %, 88.9 %, 25.0 % in Group I, and 80.0 %, 74.3 %, 85.7 %, 90.9 % and 53.8 % in Group II, respectively. No significant differences were seen between the accuracy and positive predictive values of Group I and II. It was concluded, that the accuracy of pregnancy diagnosis by real-time transrectal ultrasonography can be high already 19 to 29 after AI or natural mating.

Download Full-text

Early Pregnancy Diagnosis Using Milk Progesterone Kits in Etawah Cross Goat (Capra hircus)

Jurnal Medika Veterinaria ◽

10.21157/j.med.vet..v8i2.3350 ◽

2014 ◽

Vol 10 (2) ◽

Author(s):

Milona Elsa Nova ◽

Ginta Riady ◽

Juli Melia

Keyword(s):

Dairy Cows ◽

Early Pregnancy ◽

Capra Hircus ◽

Estrous Female ◽

Pregnancy Diagnosis ◽

Negative Results ◽

Diagnosis Tool ◽

Natural Mating

This study aims to determine the effectiveness and accuracy of milk progesterone kit as an early pregnancy diagnosis tool for Etawah cross goat. This study used 9 lactating female goats with weight in the range of 35-51 kgs and the ages ranging from 2 to 2.5 years old. Eight goats were subject to estrous synchronisation protocol using progesterone implant (CIDR-G) followed by prostaglandin administration and one goat was left to show natural estrous. Early pregnancy diagnosis using milk progesterone kits was carried out on day 18 until 22 following services. The accuracy of the kits for early pregnancy diagnosis was subsequently confirmed using ultrasonography (USG) examination on day 35 following services. The results of this study showed that estrous response by synchronization was 50%. Whereas one female goat showed estrous sign naturally and was subject to pregnancy diagnosis procedure using the milk progesterone kits after natural mating. Pregnancy diagnosis using milk progesterone kits and subsequent confirmation using USG was carried out in five goats (4 synchronized females and mated and 1 naturally estrous female and mated naturally). All 5 female goats showed negative results following pregnancy diagnosis using the kits throughout the whole 5 days examinations. While diagnosis of pregnancy as confirmed by USG showed one goat (number 6) positive. It can be concluded that milk progesterone kits on dairy cows are less effective for diagnosing pregnancy on Etawah cross goat. The accuracy of the kits for pregnancy diagnosis of not-pregnant status is 80% after confirmation using USG.Key words: CIDR-G, Ettawah goats, milk progesterone kits, ultrasonography

Download Full-text