Investigation of Postpartum problems and its Effect on the fertility of Dairy Cattle
Ahmed Said Mahmoud;
Abstract
1. Clinical evaluation of the postpartum cow (Uterine involution and ovarian rebound).
2. Identification of the isolates by bacteriological culture from uterine swabs of
Holstein dairy cows.
3. Evaluation of the antimicrobial susceptibility of the most common isolates.
The profitability of bovine industry depends to a large extent upon the production of one calf yearly. Rapid return of the reproductive organs to the functioning state as before pregnancy is very important in reducing postpartum days open and calving interval. Hence, the current study was designed to study details of the postpartum period in cows including clinical evaluation, bacteriology of the postpartum uterus.
This study was carried out in a large commercial dairy herds of Holstein-Friesian dairy cows of military farm (Six October at El-Nobaria City, EL-Behara governorate, Egypt) The animals were assigned according to their reproductive status during the postpartum period into three groups. Cows with normal puerperium group I, retained placenta cows group II and cows with disturbed puerperium group III.
Cows with normal puerperium released their fetal membranes after 4.29±0.59 hours from parturition, while those with retained placentas and disturbed puerperium were released their placentas after 44.55±5.70 and 26.12±8.56 hours from parturition respectively with significant variation (P<0.0001) between the three groups.
The mean duration for lochia discharge in normal cows was 10.5±0.60 days. The lochia was nearly odourless and glassy in colour from the 7th day postpartum until complete cessation. In cows with retained placenta, the mean duration of lochia discharge was 15.88±1.22 days. The lochia was grayish brown with offensive odour after the 5th day postpartum. For cows with disturbed pueperium, lochia was discharged for a longer period 19.62±1.77 days with a bad odour and gray to white colour allover the period of discharge. Significant variation was found (P<0.001) between the three groups.
Involution of the gravid and non-gravid horns was completed after 27.88±1.25 and 13.43±1.28 days for normal cows, while for cows with retained placenta were
35.11±1.53, 34.00±1.55 day and disturbed puerperium were 52.12±2.99 and
49.50±2.83 days with a significant variation (P<0.001) between the three groups.
2. Identification of the isolates by bacteriological culture from uterine swabs of
Holstein dairy cows.
3. Evaluation of the antimicrobial susceptibility of the most common isolates.
The profitability of bovine industry depends to a large extent upon the production of one calf yearly. Rapid return of the reproductive organs to the functioning state as before pregnancy is very important in reducing postpartum days open and calving interval. Hence, the current study was designed to study details of the postpartum period in cows including clinical evaluation, bacteriology of the postpartum uterus.
This study was carried out in a large commercial dairy herds of Holstein-Friesian dairy cows of military farm (Six October at El-Nobaria City, EL-Behara governorate, Egypt) The animals were assigned according to their reproductive status during the postpartum period into three groups. Cows with normal puerperium group I, retained placenta cows group II and cows with disturbed puerperium group III.
Cows with normal puerperium released their fetal membranes after 4.29±0.59 hours from parturition, while those with retained placentas and disturbed puerperium were released their placentas after 44.55±5.70 and 26.12±8.56 hours from parturition respectively with significant variation (P<0.0001) between the three groups.
The mean duration for lochia discharge in normal cows was 10.5±0.60 days. The lochia was nearly odourless and glassy in colour from the 7th day postpartum until complete cessation. In cows with retained placenta, the mean duration of lochia discharge was 15.88±1.22 days. The lochia was grayish brown with offensive odour after the 5th day postpartum. For cows with disturbed pueperium, lochia was discharged for a longer period 19.62±1.77 days with a bad odour and gray to white colour allover the period of discharge. Significant variation was found (P<0.001) between the three groups.
Involution of the gravid and non-gravid horns was completed after 27.88±1.25 and 13.43±1.28 days for normal cows, while for cows with retained placenta were
35.11±1.53, 34.00±1.55 day and disturbed puerperium were 52.12±2.99 and
49.50±2.83 days with a significant variation (P<0.001) between the three groups.
Other data
| Title | Investigation of Postpartum problems and its Effect on the fertility of Dairy Cattle | Other Titles | دراسة مشاكل ما بعد الولادة وتأثيرها على الخصوبة في الابقار الحلابة | Authors | Ahmed Said Mahmoud | Issue Date | 2010 |
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