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| ** Delay in lochial expulsion due to weak myometrial contractions. | | ** Delay in lochial expulsion due to weak myometrial contractions. |
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| + | ==Factors Influencing the Puerperium== |
| + | |
| + | === Uterine Involution === |
| + | |
| + | ==== Age ==== |
| + | |
| + | * More rapid in primiparia than pleuriparia |
| + | |
| + | ==== Season ==== |
| + | |
| + | * More rapid in spring and summer months. |
| + | |
| + | ==== Suckling vs Milking ==== |
| + | |
| + | * Results are contradictory |
| + | * May be a breed influence on the time taken to return to ovarian cyclicity |
| + | |
| + | ==== Climate ==== |
| + | |
| + | * Heat stress can accelerate and inhibit the speed of involution. |
| + | |
| + | ==== Periparturient Abnormalities ==== |
| + | |
| + | * Dystocia, retained placenta, hypocalcaemia, ketosis, twin calves and metritis delay involution. |
| + | * Periparturient problems cause a delay of the process of involution by ~5-8 days. |
| + | |
| + | ==== Delayed Return to Ovarian Cyclicity ==== |
| + | |
| + | * Inhibits involution |
| + | |
| + | === Restoration of the Endometrium === |
| + | |
| + | * Retained foetal membranes and metritis inhibit healing. |
| + | * Return to ovarian cyclicity may have an influence. |
| + | |
| + | === Return to Ovarian Cyclicity === |
| + | |
| + | This can be affected by; periparturient abnormalities, milk yield, nutrition, breed, parity, season, climate and suckling intensity and milking frequency. |
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| [[Category:Pregnancy and Parturition]] | | [[Category:Pregnancy and Parturition]] |