التفاصيل البيبلوغرافية
| العنوان: |
Subacute Rumen Acidosis in Greek Dairy Sheep: Prevalence, Impact and Colorimetry Management. |
| المؤلفون: |
Voulgarakis, Nikolaos1 (AUTHOR) nvoulgarakis@vet.uth.gr, Gougoulis, Dimitrios A.1 (AUTHOR) dgoug@vet.uth.gr, Psalla, Dimitra2 (AUTHOR) dpsalla@vet.auth.gr, Papakonstantinou, Georgios I.1 (AUTHOR) geopapak@vet.uth.gr, Katsoulis, Konstantinos3 (AUTHOR) kkatsoulis@vet.uth.gr, Angelidou-Tsifida, Mariana2 (AUTHOR) mtangelid@vet.auth.gr, Athanasiou, Labrini V.1 (AUTHOR) vpapatsiros@vet.uth.gr, Papatsiros, Vasileios G.1 (AUTHOR), Christodoulopoulos, Georgios4 (AUTHOR) gc@aua.gr |
| المصدر: |
Animals (2076-2615). Jul2024, Vol. 14 Issue 14, p2061. 12p. |
| مصطلحات موضوعية: |
*DAIRY farm management, *FAT content of milk, *MILK yield, *LIVESTOCK farms, *AGRICULTURAL intensification |
| مصطلحات جغرافية: |
GREECE |
| مستخلص: |
Simple Summary: Subacute rumen acidosis (SARA) is a significant clinical issue in high-yield livestock, including dairy sheep, and it is characterized by rumen pH dropping below 5.8 for at least four hours daily. This condition leads to economic losses due to reduced milk production and lower milk fat content. High-concentrate, low-fiber diets increase the risk of SARA by disrupting rumen fermentation. Diagnosing SARA is challenging, with rumen fluid pH measurement being the gold standard. This study investigated the prevalence of SARA and its impact in forty-two Greek dairy sheep flocks, as well as the potential of computerized rumen colorimetry as a diagnostic tool post mortem. Over nine months, rumen pH and milk composition were monitored, and rumen wall samples were analyzed for color and histological changes. The results showed increased epithelium thickness and discoloration in SARA-affected sheep. This study highlights the prevalence of SARA in the modern intensive dairy sheep industry, underscores the need for balanced feeding strategies, and suggests computerized rumen colorimetry as a promising tool for SARA detection and management in dairy sheep farms. Subacute rumen acidosis (SARA) is a current issue in intensive livestock farming, and it is particularly associated with feeding high-concentrate diets. This study investigated the prevalence and impact of SARA in forty-two Greek dairy sheep flocks by recording rumen pH, milk composition, and milk yield over a period of nine months. Moreover, it explored the use of computerized rumen colorimetry as a management and diagnostic tool for SARA in dairy sheep. In culled ewes, computerized rumen mucosal colorimetry was applied, and rumen wall samples taken for histological examination. SARA cases were identified in 19 farms (45%, n = 42). Farms with SARA cases had lower milk fat levels, while milk yield and milk protein levels did not differ based on the SARA status of the farms. In culled ewes, rumen color was significantly associated with the flock's SARA status, and affected ewes showed increased thickness in non-keratinized and total epithelial layers. It was concluded that computerized rumen mucosal colorimetry in aged, culled ewes shows promise as an indicator, post mortem, of SARA present in dairy sheep flocks whose impact can be minimized by making significant changes in dietary management. [ABSTRACT FROM AUTHOR] |
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