Doğu Anadolu Bölgesi Araştırmaları; 2005 İbrahim CANPOLAT ve arkadaşları EFFECTS OF BIOTIN OR ETHYLENEDIAMINE DIHYDRIODIDE SUPPLEMENTATION ON CLAW LESIONS IN CATTLE *İbrahim CANPOLAT, *Sait BULUT, **Cafer Tayer İŞLER, ***Sema TİMURKAAN * Department of Surgery, Veterinary Faculty, Firat University, ELAZIG-TURKEY **Mengen Tarım ve Köyişleri İlçe Müdürlüğü – BOLU – TURKEY *** Department of Histology, Veterinary Faculty, Firat University, ELAZIG-TURKEY _____________________________________________________________________________________________________________ ABSTRACT A controlled 12 months field trial was conducted to evaluate the effect of biotin or ethylenediamine dihydriodide(EDDI) supplementation on hoof lesions in cattles. Sixty cows were studied and supplemented with 20 mg/d biotin (n:20) or 50 mg/d EDDI (n:20) and control (n:20) by feeding. The claws of 60 cows were trimmed three times at 4-months intervals, and hoof health was evaluated. At the final hoof trimming, sole hemorrhages were significantly higher in control (42%) than biotin-supplemented animals (22%) and EDDI - supplemented animals (26%). The incidents of cows affected with double soles, white line separation, hoof wall grooves, digital dermatitis and horn erosion were not different between control and biotin or EDDI supplemented animals. Keywords: Biotin, Ethylenediamine Dihydriodide, Claw Lesion, Cattle _____________________________________________________________________________________________________________ SIĞIRLARA ETHYLENEDIAMINE DIHYDRIODIDE VE BIOTIN VERİLMESİNİN TIRNAK LEZYONLARI ÜZERİNE ETKİLERİ ÖZET Bu kontrollü 12 aylık saha çalışmasında, sığırlara ethylenediamine dihydriodide(EDDI) ve biotin verilmesinin ayak lezyonları üzerine etkileri araştırıldı. Çalışmada 60 sığır (biotin n:20, EDDI n:20 ve kontrol n:20) kullanıldı ve ilaçlar yemlere ilave edilerek biotin 20 mg/d, EDDI 50 mg/d verildi. 60 sığırın tırnakları 4 ay süreyle 3 kez kesildi ve tırnak sağlığı yönünden değerlendirildi. Son tırnak kesiminde tabanda hemoraji kontrol grubunda belirgin olarak yüksek %42, biotin verilenlerde %22 ve EDDI verilenlerde %26 olarak bulundu. Çift taban oluşumu, beyaz çizgide ayrılma, tırnak duvarında büyüme, digital dermatitis ve tırnak duvarı erezyonu yönünden gruplar arasında bir farklılık bulunmadı. Anahtar Kelimeler: Biotin, Ethylenediamine Dihydriodide, Tırnak Lezyonları, Sığır. _____________________________________________________________________________________________________________ 1. INTRODUCTION Lameness in cattle is a serious welfare problem and causes significant economic loses. Although the incidence of lamenessvaries between farm 6 to 44 percent ( Arkins 1981) , an annual case incidence of 25 to 30 per cent has been reported in European surveys (Russell 1981, Whitaker et all. 1983) It is known that approximately 75% of lameness is associated with claw horn lesions (Logue et al., 1993). The disease process still remains unclear although genetics, calving, environment, previous lameness, and nutrition are some factors that pre-dispose dairy cows to lameness Bergsten & Frank 1996, Hırst et all. 2000) . It could be argued that nutrition is of primary importance, since the protective qualities of claw horn depend on its physical structure and this is controlled by cellular processes affected by nutrition. ( Lischer, 2002). Suplementing the diets of cattles susupected of being inadequately suplied with, zinc, EDDI, biotin,tetracycline esc. has been effective in resolving existing claw lesions in a number of studies (Lıvesey et all. 1984,1997,1998, Logue et all 2000, Manson 1988). Ethylenediamine hydriodide(EDDI) has been recommended and prescribed as a feed suplement to aid in the prevention of foot rot in the cattle (Berg at all. 1984). A number of studies have shown that supplementation with the vitamin-biotin can improve the hoof and claw horn quality of horses, cattle, and swine (Kempson et al., 1989; Geyer & 56 Doğu Anadolu Bölgesi Araştırmaları; 2005 İbrahim CANPOLAT ve arkadaşları Schulze, 1994; Zenker et al.,1995; Geyer, 1998; Hochstetter, 1998). Recently many studies had shown that supplementation biotin increased speed of healing of white line lesions ( Midla et al., 1998, Blowey et al., 2000), vertical fissures (Campbell et al., 2000), sole ulcers ( Lıscher et al., 2002), subclinical laminitis (Midla et al.,1998). Table 1: Distribution of foot lesions between inner and outer claws and between fore- and hindlimbs Forelimbs Number Inner 5 claw... Outer3 claw Total 8 The objective of the present study was to compare claw lesions, as assessed by clinical, masroscopic and histological examination, in the biotin and EDDI supplemented animals with that in the control group. % 6.4 Hindlimbs Number % Number 11 14.1 16 Total % 20.5 3.8 59 75.6 62 79.4 10.2 70 89. 7 78 100 Table 2: Numbers of Foot Lesions Foot lesion Double soles White line separation White line apse Digital dermatitis Interdigital hyperplasia Horn erosion Others Foot-lesions(total) 2. MATERIALS AND METHODS A controlled 12 months trial was conducted to evaluate the effect of biotin or ethylenedaimine dihydriodide(EDDI) supplementation on hoof lesions in cattles. Sixty cows were studied and supplemented with 20 mg/d biotin (n:20) or 50 mg/d EDDI (n:20) and control (n:20) by feeding. Claw horn quality was evaluated on the basis of macroscopic-clinical and histological examinations. Clinical claw status was examined three times. Following claw trimming, claws were graded for texture, haemorrhages, cracks and further horn defects at the localisation pad, sole, white line and interdigital space. The severity of observed alterations were classified according to a scoring scheme. Samples for the histological examination were obtained from the hoof trimming. Claw horn samples were obtained by sawing a 20X20 mm horn piece each time from the same region. Histological specimen were stained with Hematoksilen-Eosin. Number 11 9 13 12 11 16 8 78 Forelimbs 2 1 3 2 8 Hindlimbs 11 7 12 9 11 12 8 70 4. DISCUSSION The various factors that may influence claw horn, include physiological, seasonal, nutritional, enviromental and management. Suplementing the diets of cattles suspected of being inadequately suplied with EDDI and biotin has been effective in resolving existing claw lesions in a number of studies (Bergsten & Frank 1996, Fitzgerald et all., 2000, Hırst et all. 2000). Ethylenediamine dihydriodide may be effective in controolling field outbreaks of bovine foot rot. (Berg at all. 1984, Maas at all. 1984). The overall incidence rate of lameness (per 100 cows per year) was 68.9, with a range of 31.6 to 11.5 some farm. The incidence rates of the four most frequently reported causes of lameness were sole ulcer, 13.8; white line separation, 12.7; digital dermatitis, 12.0; and interdigital necrobacillosis, 7.1 per 100 cows per year. There was a significant difference in the incidence rate of these four lesions between supplemented and unsupplemented cows on two of the five farms, with a significant decrease in lameness in the cows supplemented with biotin (Hedges 2001). The study was to determine the effects of supplemental dietary biotin on the prevalence of vertical fissures in beef cows15% of the cows fed supplemental dietary biotin had vertical fissures compared with 33% in the nonsupplemented group (Campbell 2000). The evaluate the effect of biotin supplementation on hoof lesions, sole hemorrhages were significantly higher in control (50%) vs. biotin-supplemented animals (24%). The incidents of cows affected with double soles, hoof wall grooves, and heel horn erosion did not differ between control and biotinsupplemented animals (Bergsten et all. 1996). 3. RESULT The horn lesions did not develop equally on all claws. The hind outer claws were most prone to injury and the hind inner claws the least. Which is less in the fore feet (Table 1). The incidence of hoof lesions recorded through out the trial in Table 2. Biotin treated cattles where the final claw status was clearly improved. Claw status in the group EDDİ remained unchanged. At the final hoof trimming, sole hemorrhages were significantly higher in control (42%), biotin-supplemented animals (22%) and ethylenedaimine dihydriodide - supplemented animals(26%). Differences histological examination of claw horn were not significant. 57 Doğu Anadolu Bölgesi Araştırmaları; 2005 İbrahim CANPOLAT ve arkadaşları In this study; the final hoof trimming, sole hemorrhages were significantly higher in control (42%), biotin-supplemented animals (22%) and ethylenedaimine dihydriodide - supplemented animals (26%). The incidents of cows affected with double soles, white line separation, hoof wall grooves, digital dermatitis and horn erosion did not different between control and biotin or ethylenedaimine dihydriodide supplemented animals. 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