【摘要】：為了研究中藥復(fù)方添加劑對(duì)夏季高溫高濕條件下肉牛的抗熱應(yīng)激作用,本試驗(yàn)選取18頭健康、體質(zhì)量約為(435.30±16.26)kg的22月齡育肥錦江黃牛未去勢(shì)公牛,隨機(jī)分為3組,每組6頭牛。試驗(yàn)牛均飼喂于夏季高溫高濕條件下,對(duì)照組飼喂基礎(chǔ)飼糧(精粗比為6∶4),兩個(gè)中藥組分別在基礎(chǔ)飼糧中添加了10 g/kg的中藥復(fù)方1和中藥復(fù)方2。試驗(yàn)期為60 d。結(jié)果顯示:(1)夏季高溫高濕環(huán)境下,試驗(yàn)期牛舍平均溫濕指數(shù)高于72,肉牛處于高度熱應(yīng)激狀態(tài);(2)添加中藥1和中藥2后,肉牛的體溫和呼吸頻率顯著下降;(3)與對(duì)照組相比,兩個(gè)復(fù)方添加組的血清IgA含量顯著下降,IgG和IgM含量顯著升高。此外,中藥1組的血清超氧化物歧化酶(T-SOD)、谷胱甘肽過(guò)氧化物酶(GSH-Px)活性顯著高于對(duì)照組,中藥2組的血清總抗氧化能力(T-AOC)及TSOD活性高于對(duì)照組,兩個(gè)復(fù)方添加組的血清MDA含量比對(duì)照組顯著下降。上述結(jié)果表明,飼糧中添加復(fù)方中草藥可以緩解肉牛的熱應(yīng)激反應(yīng),提高熱應(yīng)激期錦江黃牛血清抗氧化能力和免疫性能。
[Abstract]:In order to study the anti-heat stress effect of Chinese medicine compound additive on beef cattle under high temperature and high humidity in summer, 18 healthy cattle with body weight of (435.30 鹵16.26) kg were randomly divided into 3 groups. Each group of 6 cattle. The experimental cattle were fed with high temperature and high humidity in summer, while the control group were fed with basic diet (the ratio of concentrate to crude was 6:4). The two groups were fed with 10 g/kg Chinese medicine compound 1 and 2 Chinese medicine compound respectively. The experimental period is 60 days. The results showed that: (1) under high temperature and high humidity in summer, the average temperature and humidity index of cattle was higher than 72, and the beef cattle were in high heat stress state, (2) the body temperature and respiratory frequency of beef cattle decreased significantly after adding traditional Chinese medicine 1 and Chinese medicine 2. (3) compared with the control group, the serum IgA content was significantly decreased, and the IgG and IgM levels were significantly increased in the two compound supplementation groups. In addition, the activities of serum superoxide dismutase (T-SOD) and glutathione peroxidase (GSH-Px) in group 1 were significantly higher than those in control group, and the total antioxidant capacity (T-AOC) and the activity of TSOD in group 2 were higher than those in control group. The serum MDA content of the two groups was significantly lower than that of the control group. The results indicated that the addition of compound Chinese herbal medicine to diet could alleviate the heat stress response of beef cattle and improve the antioxidant ability and immune performance of Jinjiang yellow cattle serum during heat stress period.
【作者單位】： 江西農(nóng)業(yè)大學(xué)動(dòng)物科學(xué)技術(shù)學(xué)院;高安裕豐農(nóng)牧業(yè)有限公司;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(31660672) 現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系資助項(xiàng)目(CARS-38) 江西省教育廳科學(xué)技術(shù)重點(diǎn)項(xiàng)目(GJJ150376P)~~
【分類號(hào)】：S823.5

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本文編號(hào)：2331201