English
Sarum fibrinogenni olib tashlagandan so'ng plazmadan kolloid suyuqlikni anglatadi, jumladan homila sigir zardobi, buzoq zardobi, kattalar sigir zardobi va ot zardobi. Sarum odatda maxsus media shisha da saqlanadi va turiga qarab tegishli saqlash muhitiga joylashtiriladi. Sarum sifatiga ta'sir qiluvchi omillarga quyidagilar kiradi:
1. Endotoksin
Mahalliy standart 5EU/ml dan yuqori emas. Endotoksin bakteriyalar buzilganidan keyin hujayra devorining tarkibiy qismidir, shuning uchun endotoksin tarkibining darajasi qon to'plashdan ishlab chiqarishgacha bo'lgan bir qator jarayonlarda aseptik operatsiyani ko'rsatishi mumkin. Agar endotoksin miqdori nihoyatda yuqori bo'lsa, bu sarumning ifloslanganligini ko'rsatadi.
2. Umumiy protein miqdori
Xomilalik sigir zardobining umumiy diapazoni 30-40 mg/ml ni tashkil qiladi. Agar qiymat juda yuqori bo'lsa, bu ho'kizning yoshi homila emas, balki juda keksa ekanligini anglatadi va qiymat juda past bo'lib, sarum suv bilan aralashtirilgan bo'lishi mumkinligini ko'rsatadi.
3. Gemoglobin
Standart 20mg/dl dan yuqori emas, rang qanchalik qizil bo'lsa, qiymat shunchalik yuqori bo'ladi va aksincha, qiymat past bo'ladi.
4. pH
Mahalliy sarum asosan 7,5 dan yuqori, import qilingan homila sigir zardobi esa 7,5 dan past. Muayyan sabab noma'lum va sigirning yoshi bilan bog'liq bo'lishi mumkin. Bundan avval sarum manbasini aniqlash uchun ham foydalanish mumkin.
5. Mikroorganizmlar
Jumladan, bakteriya, mog'or, mikoplazma, bakteriofaglar, turli patogen viruslar va boshqalar. Ular orasida Escherichia coli zardob sifatiga kam ta'sir qiladi va patogen viruslar, ayniqsa BVDV, mahalliy zardobning deyarli 90 foizida mavjud va va bu mikroorganizmlar eng muhim hisoblanadi. Mahalliy sarum sifatining muhim omillaridan biri.
Yuqoridagilar sarum ishlab chiqarish jarayoni sifatiga o'z omillarining ta'siridir. Bundan tashqari, media shishasining sifati ham sarumga ma'lum ta'sir ko'rsatadi. Agar vosita shishasi mahkam yopilmagan bo'lsa yoki sterilizatsiya tugallanmagan bo'lsa, bu to'g'ridan-to'g'ri sarumning ifloslanishiga olib keladi. Hujayra tajribasida ifloslangan sarumni qo'llash hujayralar o'sishini sekinlashtiradi yoki hatto to'xtatib qo'yadi, bu esa eksperimental ta'sirga ta'sir qiladi.
Shuning uchun sarumni tanlashda sarum sifatini aniqlashda e'tibor bering. sarum sifati yaxshi bo'lishini ta'minlash uchun media shishasining muhri buzilmagan.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.