دورية أكاديمية
Association between hoof lesions and fertility in lactating Jersey cows.
| العنوان: | Association between hoof lesions and fertility in lactating Jersey cows. |
|---|---|
| المؤلفون: | Omontese BO; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108., Bellet-Elias R; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108., Molinero A; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108., Catandi GD; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108., Casagrande R; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108., Rodriguez Z; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108., Bisinotto RS; Department of Large Animal Clinical Sciences, University of Florida, Gainesville 32610., Cramer G; Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108. Electronic address: gcramer@umn.edu. |
| المصدر: | Journal of dairy science [J Dairy Sci] 2020 Apr; Vol. 103 (4), pp. 3401-3413. Date of Electronic Publication: 2020 Feb 11. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Dairy Science Association Country of Publication: United States NLM ID: 2985126R Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1525-3198 (Electronic) Linking ISSN: 00220302 NLM ISO Abbreviation: J Dairy Sci Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Champaign, IL : American Dairy Science Association Original Publication: Lancaster, Pa. [etc.] |
| مواضيع طبية MeSH: | Fertility*, Cattle Diseases/*physiopathology , Hoof and Claw/*pathology , Lameness, Animal/*physiopathology, Animals ; Cattle ; Cattle Diseases/pathology ; Corpus Luteum/diagnostic imaging ; Estrus Detection/methods ; Female ; Hoof and Claw/diagnostic imaging ; Lactation ; Lameness, Animal/pathology ; Milk ; Postpartum Period ; Pregnancy |
| مستخلص: | The objectives of this study were to evaluate the association between hoof lesions and fertility in dairy cows. Lactating Jersey cows (n = 1,639) were enrolled at 20 ± 3 d in milk (D20), examined and treated for presence of hoof lesions (HL), and evaluated for body condition score (BCS). Afterward, they were managed according to standard farm procedures, including estrus detection and presynchronization and a 5 d Cosynch-72 protocol for cows that failed to show estrus. Ovaries were scanned at 27 and 41 ± 3 d in milk, and cows with a corpus luteum greater than 20 mm on at least 1 exam were considered cyclic. At 120 ± 3 d in milk (D120), cows were re-examined for HL and BCS. Cows were classified at D20 according to HL status as healthy (n = 1,197) or having HL (n = 429), and according to HL category as healthy (n = 1,197) or having a sole hemorrhage (n = 280), noninfectious HL (sole ulcer, toe ulcer, or white line disease; n = 113), or infectious HL (digital dermatitis and foot rot; n = 36). Cows with HL at D20 had reduced odds of being cyclic (38.3 vs. 51.9%) and a longer interval from calving to first service (58 vs. 51 d) compared with healthy cows. Cows with infectious HL at D20 had reduced odds of pregnancy to first service (16.7 vs. 38.3%) compared with healthy cows. Cows with sole hemorrhage at D20 were more likely to lose pregnancies between d 32 and 64 after the first service postpartum compared with healthy cows (10.5 vs. 5.2%). Cows with sole hemorrhage at D20 had a smaller hazard of pregnancy (67.9 vs. 75.5%) at 150 d in milk and more days open (88 vs. 77d) compared with healthy cows. To assess the relationship between the development of HL and fertility, cows were classified as healthy (no HL at D20 and D120; n = 308), cured (any HL at D20 and no HL at D120; n = 72), new HL (no HL at D20 and any HL at D120; n = 597), and chronic (any HL at D20 and D120; n = 226). Sole hemorrhage accounted for 93% of new HL. The proportions of cows with HL at D20 and D120 were 26.9 and 68.4%, respectively. We found no evidence for a difference in pregnancy hazard at 150 d in milk between cows that remained healthy (n = 308) and cows that developed new HL (n = 597). Hoof lesions at D20, but not new HL, were associated with decreased odds of cyclicity, longer interval from calving to first service postpartum, and reduced pregnancy hazard in Jersey cows. The effect of an HL diagnosis in early lactation and management to reduce chronic HL in dairy cows warrants further investigation. (Copyright © 2020 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.) |
| فهرسة مساهمة: | Keywords: cyclicity; foot trim; hoof lesion; lameness; pregnancy hazard |
| تواريخ الأحداث: | Date Created: 20200215 Date Completed: 20200731 Latest Revision: 20200731 |
| رمز التحديث: | 20240628 |
| DOI: | 10.3168/jds.2019-17252 |
| PMID: | 32057429 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1525-3198 |
|---|---|
| DOI: | 10.3168/jds.2019-17252 |