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What is a primary associated factor with atresia coli in calves?
Rectal palpation in early pregnancy
High fat diet during gestation
Infection during birthing
Caloric restriction during lactation
The correct answer is: Rectal palpation in early pregnancy
Atresia coli is a congenital defect characterized by the absence or closure of a segment of the colon, which leads to colonic obstruction in affected calves. This condition is predominantly associated with fetal developmental issues during gestation. The connection between atresia coli and rectal palpation during early pregnancy lies in the potential impact of such procedures on the developing fetus. While rectal palpation is a common practice for diagnosing pregnancy in cattle, excessive or inappropriate manipulation can cause trauma or stress to the developing fetus, potentially contributing to developmental abnormalities including atresia coli. Other factors listed, such as dietary influences or infections, are less directly tied to the etiology of atresia coli. Specifically, a high-fat diet during gestation could affect overall health or fetal growth but does not have a strong association with congenital defects like atresia coli. Similarly, infections during birthing or caloric restriction during lactation may impact the calf's health but do not relate to the fetal development issues that lead to atresia coli. Thus, the primary factor associated with atresia coli in calves is the potential effects of rectal palpation during early pregnancy, underscoring the importance of careful obstetric practices to minimize risks of congenital abnormalities