愛拔益加肉仔雞對(duì)胍基乙酸的耐受性評(píng)價(jià)
[Abstract]:The purpose of this experiment was to study the effects of diet supplemented with guanidine acetate (GAA) on growth performance, hematological index, organ index, tissue homocysteine content and tissue morphology of (AA) broilers, and to evaluate systematically the tolerance of AA broilers to GAA. A total of 540 1-day-old AA broilers were randomly divided into 5 groups, 6 replicates in each group and 18 chickens in each group. The experiment period was 42 days, which was divided into two stages: the early stage (1: 21 days) and the late stage (22 ~ 42 days old). The results showed that compared with the control group, the average daily gain (ADG) of the broilers increased significantly (P0.05) in the early stage, the later stage and the whole period (P0.05), and the feed weight ratio (P0.05) decreased significantly, but there was no significant effect on the average daily intake in each period (P0.05). The average daily gain, average daily intake and feed weight ratio of the group supplemented with 8 000 mg/kg GAA diet were not significantly different from those of the control group (P0.05). There was no significant effect on blood routine index, serum biochemical index, visceral index and tissue homocysteine content of 21 ~ 42-day-old broilers supplemented with 800 ~ (8 000 mg/kg GAA) diet (P0.05). There was no adverse effect on liver and kidney morphology of broilers fed with 4 000 ~ 8 000 mg/kg GAA diet. It can be seen that there is no adverse effect on growth performance, hematologic index, organ index, tissue homocysteine content and tissue morphology of broilers fed with GAA, but the broilers can tolerate 8 000 mg/kg GAA..
【作者單位】: 中國(guó)農(nóng)業(yè)大學(xué)動(dòng)物營(yíng)養(yǎng)學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室農(nóng)業(yè)部飼料安全與生物學(xué)效價(jià)重點(diǎn)實(shí)驗(yàn)室;北京君德同創(chuàng)農(nóng)牧科技股份有限公司;
【基金】:北京市科技計(jì)劃項(xiàng)目資助(Z151100001215001)
【分類號(hào)】:S831.5
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