Falhas reprodutivas em pequenos ruminantes - Revisão de literatura.

Abstract

The breeding of goats and sheep is an activity widely developed in the northeastern region, but noted that US production systems there are production losses associated with various causes, among them problems in the reproductive sphere, which include anestrus, abortions, natimortalidade, malformations, among others. In this context, it is important that you introduce yourself to academic and professional an easy consultation material on the causes of reproductive failures in small ruminants. Among the infectious diseases that cause miscarriages, or other manifestations of reproductive dysfunctions include leptospirosis, toxoplasmosis, neosporosis as listeriosis, brucellosis, ovine, clamidofilose, dourine, mycoplasmosis, Campylobacteriosis and salmonellosis. Reproductive failures, or even death of animals and fetuses in the perinatal period, are also associated with nutritional factors. Miscarriages, stillbirths or young small and weak are common in underfed animals, especially when the supply of energy and proteins is inappropriate. The lowest production of colostrum and milk associated with malnutrition also makes the survival of live births the ingestion of toxic plants like Aspidospermapyrifolium (Pereiro) and Mimosa tenuiflora. (Jurema preta) cause, respectively, abortion and birth in the semiarid Northeast. After the completion of this work can be inferred that causes reproductive losses are very diverse and its diagnosis is hampered by many factors. To advance in the clarification of the causes of abortion is necessary an effective integration of field veterinary diagnostic laboratories and professionals, too, the producers ' awareness on the importance of gathering material useful for the diagnosis. The adoption of prophylactic measures, common to several illnesses, could minimize the spread of likely infectious agents and reduce the occurrence of losses. Provide food able to meet the nutritional needs of animals at the gestational period and prevent access of these area with plants, known to be able to cause reproductive losses, are also prophylactic measures that should be deployed in the region.