Sığırlarda Tırnak Kesimi
Özet
Topallıklar, çiftlik hayvanı endüstrisinde büyük bir sağlık, refah ve üretim sorunu olarak yıllardan beri artarak karşımıza çıkmaktadır. Genellikle bu topallıkların nedeni boynuz tırnak lezyonlarıdır. Son zamanlarda geleneksel olarak sadece ciddi topallığa sahip ineklerin tedavi edilmesinden, sürü düzeyinde risk faktörlerinin değerlendirilmesine ve bunların düzeltilmesine yönelik önleyici yaklaşıma doğru bir geçiş yaşanmıştır. Böylelikle düvelerin korunmasına verilen önem artmış, bu hayvanlarda görülebilecek süt veriminin azalması, doğurganlığın düşmesi ve kesim ihtimali gibi olumsuz etkiler azaltılmıştır.
Topal hayvanların tespiti genellikle süt sağımı gibi uygun zamanlarda çiftlik çalışanları tarafından pasif gözlem yoluyla yapılır. Bu gibi durumlarda, hafif ve orta derecedeki topallıklar genellikle fark edilememekte ve tırnak kesimine 65 güne kadar gecikmeye yol açabilmektedir. Bu gecikme, daha ciddi topallıklar için bir risk faktörüdür. Çiftliklerde eğitilmiş personel tarafından hayvanların düzenli olarak değerlendirilmesi daha iyi bir topallık tespiti sağlamaktadır. Böylelikle, topallığın yaygınlığı ve gerçek insidans eğilimleri doğru bir şekilde izlenebilir ve aynı zamanda hayvanların tedavisi için gerekli eylem planları hızlıca hazırlanıp kolayca uygulanabilir. Gözlenen yüksek topallık oranları, koruyucu tırnak kesiminin geliştirilmesine yol açmıştır. Tırnak kesiminin genel amacı, lezyon gelişimini en aza indirmek ve önlemek için ayak üzerindeki ağırlık dağılımının dengeli bir şekilde sürdürülebilmesi için fazla boynuz tırnak büyümesinin giderilmesidir.
Lameness has been a major health, welfare and production problem in the livestock industry for many years. Usually these lamenesses are caused by horn hoof lesions. Recently, there has been a shift from the traditional treatment of only cows with severe lameness to a preventive approach of assessing and correcting risk factors at herd level. This has increased the emphasis on the protection of heifers, reducing the negative effects that can be seen in these animals, such as reduced milk yield, reduced fertility and the possibility of slaughter.
Detection of lame animals is usually done through passive observation by farm workers at appropriate times, such as during milking. In such cases, mild to moderate lameness often goes unrecognized and can lead to a delay in hoof trimming of up to 65 days. This delay is a risk factor for more severe lameness. Regular assessment of animals by trained staff on farms leads to better lameness detection. In this way, the prevalence of lameness and the actual incidence trends can be accurately monitored and at the same time action plans for the treatment of animals can be quickly prepared and easily implemented. The observed high lameness rates have led to the development of preventive hoof trimming. The overall goal of hoof trimming is to remove excess horn nail growth so that weight distribution on the foot can be maintained in a balanced manner to minimize and prevent lesion development.
Referanslar
Barker ZE, Leach KA, Whay HR, et al. Assessment of lameness prevalence and associated risk factors in dairy herds in England and Wales. Journal of Dairy Science, 2010;93(3): 932–941. doi: 10.3168/jds.2009-2309.
Clarkson MJ, Downham DY, Faull WB, et al. Incidence and prevalence of lameness in dairy cattle. Veterinary Record, 1996;138(23): 563–567. doi: 10.1136/vr.138.23.563.
Hernandez JA, Garbarino EJ, Shearer JK, et al. Comparison of milk yield in dairy cows with different degrees of lameness. Journal of the American Veterinary Medical Association, 2005;227(8): 1292–1296. doi: 10.2460/javma.2005.227.1292.
Sogstad ÅM, Østerås O, Fjeldaas T, et al. Bovine claw and limb disorders related to culling and carcass characteristics. Livestock Science, 2007;106(1): 87–95. doi: 10.1016/j.livsci.2006.07.003.
Leach KA, Tisdall DA, Bell NJ, et al. The effects of early treatment for hindlimb lameness in dairy cows on four commercial UK farms. The Veterinary Journal, 2012;193(3): 626–632. doi: 10.1016/j.tvjl.2012.06.043.
Van Amstel SR, Shearer J. Manual for treatment and control of lameness in cattle. 1st ed. Iowa: Blackwell Publishing; 2006.
Hahn MV, McDaniel BT, Wilk JC. Rates of Hoof Growth and Wear in Holstein Cattle. Journal of Dairy Science, 1986;69(8): 2148–2156. doi: 10.3168/jds.S0022-0302(86)80647-6.
Vokey FJ, Guard CL, Erb HN, et al. Effects of Alley and Stall Surfaces on Indices of Claw and Leg Health in Dairy Cattle Housed in a Free-Stall Barn. Journal of Dairy Science, 2001;84(12): 2686–2699. doi: 10.3168/jds.S0022-0302(01)74723-6.
Ettema JF, Capion N, Hill AE. The association of hoof lesions at claw trimming with test-day milk yield in Danish Holsteins. Preventive Veterinary Medicine, 2007;79(2–4): 224–243. doi: 10.1016/j.prevetmed.2006.12.007.
Chapinal N, De Passillé AM, Rushen J. Weight distribution and gait in dairy cattle are affected by milking and late pregnancy. Journal of Dairy Science, 2009;92(2): 581–588. doi: 10.3168/jds.2008-1533.
Tarlton JF, Holah DE, Evans KM, et al. Biomechanical and Histopathological Changes in the Support Structures of Bovine Hooves around the Time of First Calving. The Veterinary Journal. 2002;163(2): 196–204. doi: 10.1053/tvjl.2001.0651.
Bicalho RC, Machado VS, Caixeta LS. Lameness in dairy cattle: A debilitating disease or a disease of debilitated cattle? A cross-sectional study of lameness prevalence and thickness of the digital cushion. Journal of Dairy Science, 2009;92(7): 3175–3184. doi: 10.3168/jds.2008-1827.
Knott L, Tarlton JF, Craft H, et al. Effects of housing, parturition and diet change on the biochemistry and biomechanics of the support structures of the hoof of dairy heifers. The Veterinary Journal. 2007;174(2): 277–287. doi: 10.1016/j.tvjl.2006.09.007.
Mahendran S, Bell N. Lameness in cattle 2. Managing claw health through appropriate trimming techniques. In Practice, 2015;37(5): 231–242. doi: 10.1136/inp.h2011.
Manske T, Hultgren J, Bergsten C. Prevalence and interrelationships of hoof lesions and lameness in Swedish dairy cows. Preventive Veterinary Medicine, 2002;54(3): 247–263. doi: 10.1016/S0167-5877(02)00018-1.
Ouweltjes W, Holzhauer M, Van Der Tol PPJ, et al. Effects of two trimming methods of dairy cattle on concrete or rubber-covered slatted floors. Journal of Dairy Science, 2009;92(3): 960–971. doi: 10.3168/jds.2008-1559.
Maxwell O, Miguel‐Pacheco G, Newsome R, et al. Lameness in cattle 1. Recent research to inform clinical practice. In Practice, 2015;37(3): 127–138. doi: 10.1136/inp.h897.
Blowey R. Chapter Four Hoof-Trimming. In: Cattle Lameness and Hoofcare An Illustrated Guide. 3rd ed. India: 5m Publishing; 2015. p. 40-54.
Shearer JK, Van Amstel SR. Functional and Corrective Claw Trimming. Veterinary Clinics of North America: Food Animal Practice, 2001;17(1): 53–72. doi: 10.1016/s0749-0720(15)30054-2.
İzci C. Sığırlarda ayak hastalıkları ve topallık kontrolü. 1st ed. Konya: Selçuk Üniversitesi Basımevi; 2018.
Vermunt JJ, Greenough PR. Claw conformation of dairy heifers in twomanagement systems. British Veterinary Journal, 1996;152(3): 321–331. doi: 10.1016/S0007-1935(96)80104-7.
Nuss K, Sauter-Louis C, Sigmund B. Measurements of forelimb claw dimensions in cows using a standardised sole thickness: A post-mortem study. The Veterinary Journal, 2011;190(1): 84–89. doi: 10.1016/j.tvjl.2010.10.002.
Van Der Tol PPJ, Van Der Beek SS, Metz JHM, et al. The Effect of Preventive Trimming on Weight Bearing and Force Balance on the Claws of Dairy Cattle. Journal of Dairy Science, 2004;87(6): 1732–1738. doi: 10.3168/jds.S0022-0302(04)73327-5.
Referanslar
Barker ZE, Leach KA, Whay HR, et al. Assessment of lameness prevalence and associated risk factors in dairy herds in England and Wales. Journal of Dairy Science, 2010;93(3): 932–941. doi: 10.3168/jds.2009-2309.
Clarkson MJ, Downham DY, Faull WB, et al. Incidence and prevalence of lameness in dairy cattle. Veterinary Record, 1996;138(23): 563–567. doi: 10.1136/vr.138.23.563.
Hernandez JA, Garbarino EJ, Shearer JK, et al. Comparison of milk yield in dairy cows with different degrees of lameness. Journal of the American Veterinary Medical Association, 2005;227(8): 1292–1296. doi: 10.2460/javma.2005.227.1292.
Sogstad ÅM, Østerås O, Fjeldaas T, et al. Bovine claw and limb disorders related to culling and carcass characteristics. Livestock Science, 2007;106(1): 87–95. doi: 10.1016/j.livsci.2006.07.003.
Leach KA, Tisdall DA, Bell NJ, et al. The effects of early treatment for hindlimb lameness in dairy cows on four commercial UK farms. The Veterinary Journal, 2012;193(3): 626–632. doi: 10.1016/j.tvjl.2012.06.043.
Van Amstel SR, Shearer J. Manual for treatment and control of lameness in cattle. 1st ed. Iowa: Blackwell Publishing; 2006.
Hahn MV, McDaniel BT, Wilk JC. Rates of Hoof Growth and Wear in Holstein Cattle. Journal of Dairy Science, 1986;69(8): 2148–2156. doi: 10.3168/jds.S0022-0302(86)80647-6.
Vokey FJ, Guard CL, Erb HN, et al. Effects of Alley and Stall Surfaces on Indices of Claw and Leg Health in Dairy Cattle Housed in a Free-Stall Barn. Journal of Dairy Science, 2001;84(12): 2686–2699. doi: 10.3168/jds.S0022-0302(01)74723-6.
Ettema JF, Capion N, Hill AE. The association of hoof lesions at claw trimming with test-day milk yield in Danish Holsteins. Preventive Veterinary Medicine, 2007;79(2–4): 224–243. doi: 10.1016/j.prevetmed.2006.12.007.
Chapinal N, De Passillé AM, Rushen J. Weight distribution and gait in dairy cattle are affected by milking and late pregnancy. Journal of Dairy Science, 2009;92(2): 581–588. doi: 10.3168/jds.2008-1533.
Tarlton JF, Holah DE, Evans KM, et al. Biomechanical and Histopathological Changes in the Support Structures of Bovine Hooves around the Time of First Calving. The Veterinary Journal. 2002;163(2): 196–204. doi: 10.1053/tvjl.2001.0651.
Bicalho RC, Machado VS, Caixeta LS. Lameness in dairy cattle: A debilitating disease or a disease of debilitated cattle? A cross-sectional study of lameness prevalence and thickness of the digital cushion. Journal of Dairy Science, 2009;92(7): 3175–3184. doi: 10.3168/jds.2008-1827.
Knott L, Tarlton JF, Craft H, et al. Effects of housing, parturition and diet change on the biochemistry and biomechanics of the support structures of the hoof of dairy heifers. The Veterinary Journal. 2007;174(2): 277–287. doi: 10.1016/j.tvjl.2006.09.007.
Mahendran S, Bell N. Lameness in cattle 2. Managing claw health through appropriate trimming techniques. In Practice, 2015;37(5): 231–242. doi: 10.1136/inp.h2011.
Manske T, Hultgren J, Bergsten C. Prevalence and interrelationships of hoof lesions and lameness in Swedish dairy cows. Preventive Veterinary Medicine, 2002;54(3): 247–263. doi: 10.1016/S0167-5877(02)00018-1.
Ouweltjes W, Holzhauer M, Van Der Tol PPJ, et al. Effects of two trimming methods of dairy cattle on concrete or rubber-covered slatted floors. Journal of Dairy Science, 2009;92(3): 960–971. doi: 10.3168/jds.2008-1559.
Maxwell O, Miguel‐Pacheco G, Newsome R, et al. Lameness in cattle 1. Recent research to inform clinical practice. In Practice, 2015;37(3): 127–138. doi: 10.1136/inp.h897.
Blowey R. Chapter Four Hoof-Trimming. In: Cattle Lameness and Hoofcare An Illustrated Guide. 3rd ed. India: 5m Publishing; 2015. p. 40-54.
Shearer JK, Van Amstel SR. Functional and Corrective Claw Trimming. Veterinary Clinics of North America: Food Animal Practice, 2001;17(1): 53–72. doi: 10.1016/s0749-0720(15)30054-2.
İzci C. Sığırlarda ayak hastalıkları ve topallık kontrolü. 1st ed. Konya: Selçuk Üniversitesi Basımevi; 2018.
Vermunt JJ, Greenough PR. Claw conformation of dairy heifers in twomanagement systems. British Veterinary Journal, 1996;152(3): 321–331. doi: 10.1016/S0007-1935(96)80104-7.
Nuss K, Sauter-Louis C, Sigmund B. Measurements of forelimb claw dimensions in cows using a standardised sole thickness: A post-mortem study. The Veterinary Journal, 2011;190(1): 84–89. doi: 10.1016/j.tvjl.2010.10.002.
Van Der Tol PPJ, Van Der Beek SS, Metz JHM, et al. The Effect of Preventive Trimming on Weight Bearing and Force Balance on the Claws of Dairy Cattle. Journal of Dairy Science, 2004;87(6): 1732–1738. doi: 10.3168/jds.S0022-0302(04)73327-5.