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奶牛營(yíng)養(yǎng)與代謝病ppt課件-展示頁(yè)

2025-01-14 09:45本頁(yè)面
  

【正文】 應(yīng)用研究,經(jīng)電腦喂料器補(bǔ)充 305天校正產(chǎn)奶量增加 878公斤( P) 一個(gè)農(nóng)場(chǎng) 牛群滾動(dòng)平均 產(chǎn)奶量 =9800 公斤 0或 20毫克 /日 應(yīng)用研究,每個(gè)處理 10個(gè)農(nóng)場(chǎng) 放牧(澳大利亞) 對(duì)產(chǎn)奶量沒有作用。NUTRITIONAL APPROACH FOR CATTLE FOOT CARE 通過營(yíng)養(yǎng)的辦法護(hù)理牛的體部 INFECTIOUS SKIN DISEASES (MULTIFACTORIAL PROBLEM) Disease anism Spirochaete Deep Slurry 厚的泥漿泥漿漿漿 Wet Hooves 蹄部潮濕潮潮濕濕 Low Oxygen 氧 FOOT WARTS Housing System Nutrition (Protein) 感染性皮膚?。ǘ喾N因素引起的問題) 病原生物 螺旋體屬 氧氣含量低 蹄疣(蹄部肉贅) 圈舍條件 營(yíng)養(yǎng)(蛋白質(zhì)) CLINICAL LESIONS IN HOOF RESULT FROM: POOR HORN QUALITY DEPENDS ON 決 QUALITY EPIDERMAL TISSUES Nutrition { Keratinization Intercellular Substances 臨床上蹄部損傷由以下因素造成: 角質(zhì)質(zhì)量差 決定于 表皮組織的質(zhì)量 營(yíng)養(yǎng) 角質(zhì)化 細(xì)胞間的物質(zhì) HORN QUALITY * Keratin filaments and associated proteins * Cross linkages by disulphide bonds to form keratin masses * Intercellular cementing substances REQUIRED NUTRIENTS * Sulphur containing amino acids, cystine, methionine and histidine * Fatty Acids * Calcium, Zinc * Biotin 角質(zhì)質(zhì)量 角質(zhì)蛋白絲和相關(guān)的蛋白 通過二硫鍵的交叉聯(lián)接形成交織基質(zhì) 細(xì)胞間的粘接基質(zhì) 需要的營(yíng)養(yǎng)物質(zhì) 含硫氨基酸,胱氨酸,蛋氨酸和組氨酸 脂肪酸 鈣,鋅 生物素 CONCENTRATE FEEDING AND HOOF DISORDERS Large amount of No Effect Starch or restricted fibre leads Bergsten and Frank (1998) to hoof disorders Olsson et al. (1998) Peterse et al. (1989) Liversay and Fleming (1980) Manson and Lever (1988) (Concrete cubicles) Rubber Mats (Tie Stall) 精料喂量與蹄病 大量的淀粉或纖維飼料供給有限導(dǎo)致蹄病 無效 (混凝土隔間) 橡膠墊 (拴系欄位) RUMEN FERMENTATION PATTERNS AS A CONSEQUENCE OF ADAPTION DUE TO pH REGULATION 020406080 R U M EN p HMOLAR(%)A C ET I C A C I D P R O P I O N I C A C I D LA C T I C A C I D適應(yīng) PH 值變化規(guī)律的瘤胃發(fā)酵形式 瘤胃 PH 醋酸 丙酸 乳酸 克分子(%) CHANGES OF RUMEN pH THROUGHOUT A 24 HOUR PERIOD IN DAIRY COWS FED CLOVER PASTURE PLUS SMALL AMOUNTS OF MAIZE SILAGE 70 4 8 10 12 16 18 20 24Ti me (h )pHC l ov e r p as tu r eP as tu r e + S i l age(Stockdale, 1994) 放牧飼喂苜蓿草加少量玉米青貯的奶牛的 24間的瘤胃 PH值變化情況 時(shí)間(小時(shí)) 苜蓿草 苜蓿草加青貯 SEQUENCE OF EVENTS LEADING TO LAMINITIS Nutr itionE xcessi v e grai nF i nel y chopped for ag eSl ug grai n feedi n gL ac tic Ac id Pr od u c tionDe c r e ased p HDe ath of gr a m n e gative b ac t e r ia amp。 e n d otoxin r e leaseInf ecti o us D i se ases E nv i r onm entMet ri t i s Hi sta m in e S t res sMast i t i s C onc ussi onF oot R ot T raum aV aso c on str ac tion /d il ationL am in ae d e str u c
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