title: Influences of metabolic traits on subclinical endometritis at different intervals postpartum in high milking cows.
abstract: Seventy pluriparous high-yielding cows were used to investigate the impact of metabolic traits and body condition score (BCS) during early lactation on subclinical endometritis diagnosed at weeks 5, 6 and 7 postpartum (pp). Blood samples were collected from animals with no peripartum problems from the second (W2) to seventh (W7) weeks pp to estimate some blood metabolites including non-esterified fatty acids (NEFA), β-hydroxybutyric acid (BHBA), blood glucose, total cholesterol (T-chol) and blood urea nitrogen (BUN). Reproductive tract examination was carried out at weeks 5, 6 and 7 pp by endometrial cytology (percentage of polymorphonuclear cells; PMN%). Based on PMN%, animals having <5% were defined as subclinical endometritis group (ENDM group) while animals unaffected by endometritis were defined as no subclinical endometritis group (NOENDM group). Animals with endometritis during week 5 were identified as ENDM5, during week 6 identified as ENDM6 and during week 7 identified as ENDM7 or animals with no endometritis during weeks 5 (NOENDM5), 6 (NOENDM6) and 7 (NOENDM7) pp. Animals diagnosed at week 5; BUN and BCS were lower p < 0.05 in ENDM 5 than NOENDM5 group at W2, W4, W6 and W7. Cows diagnosed at week 6; T-chol was significantly higher (p = 0.05) in ENDM6 group (279.2 ± 12.5 mg/dl) than NOENDM6 group (246 ± 9.5 mg/dl) at W7. Moreover, blood glucose was significantly low (p < 0.05) in ENDM6 group when compared to NOENDM group at W4 pp (49.2 ± 1.8 vs 53.8 ± 1.3 mg/dl). BCS was significantly lower (p < 0.001) in animals suffered from endometritis during week 7 when compared to NOENDM7 cows at W3, W4, W5, W6 and W7. In conclusion, lower blood glucose, BUN and BCS could be a risk factor for cytologically diagnosed endometritis at weeks 5, 6 and 7 pp.
authors: Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt. senosy_76@yahoo.com
authors: W S
authors: WS
authors: Senosy
authors: Y
authors: Y
authors: Izaike
authors: T
authors: T
authors: Osawa
mesh_terms: D020155:3-Hydroxybutyric Acid / Q000097:blood; D000818:Animals; D001786:Blood Glucose / Q000032:analysis; D001806:Blood Urea Nitrogen; D001823:Body Composition; D002417:Cattle; D002418:Cattle Diseases / Q000378:metabolism*; D004716:Endometritis / Q000378:metabolism / Q000473:pathology / Q000662:veterinary*; D004717:Endometrium / Q000473:pathology; D004734:Energy Metabolism / Q000235:genetics; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005260:Female; D007774:Lactation / Q000235:genetics / Q000378:metabolism*; D009504:Neutrophils / Q000473:pathology; D049590:Postpartum Period / Q000378:metabolism*; D011374:Progesterone / Q000097:blood; D011644:Puerperal Disorders / Q000378:metabolism / Q000473:pathology / Q000662:veterinary*; D019655:Quantitative Trait, Heritable; D013997:Time Factors
chemical_list: D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D011374:Progesterone; D020155:3-Hydroxybutyric Acid