本文關(guān)鍵詞： 硫酸亞鐵 甘氨酸亞鐵 斷奶仔豬 生長性能 鐵表觀消化率 血清鐵指標(biāo)　出處：《動物營養(yǎng)學(xué)報》2017年06期 　論文類型：期刊論文

【摘要】：本試驗旨在研究甘氨酸亞鐵對斷奶仔豬生長性能、鐵表觀消化率及血清鐵相關(guān)指標(biāo)的影響。試驗選取12頭(28±1)日齡"杜×長×大"斷奶仔豬,根據(jù)體重、健康狀況等均衡分布原則分為2組,每組6個重復(fù),每個重復(fù)1頭仔豬,單個飼養(yǎng)于消化代謝籠。試驗分為2個階段,第1階段:2組均飼喂缺鐵基礎(chǔ)飼糧10 d,使仔豬處于臨近貧血狀態(tài);第2階段:對照組在缺鐵基礎(chǔ)飼糧中額外添加100 mg/kg的硫酸亞鐵(以鐵計),試驗組額外添加100 mg/kg的甘氨酸亞鐵(以鐵計),試驗期10 d。結(jié)果表明:與添加硫酸亞鐵相比,飼糧添加甘氨酸亞鐵有降低仔豬料重比的趨勢(P0.10),降低了4.57%,但對仔豬的平均日增重、平均日采食量無顯著影響(P0.10);飼糧添加甘氨酸亞鐵能顯著降低糞中的鐵排出量和鐵排出總量(P0.05),分別降低了23.11%和22.09%;飼糧添加甘氨酸亞鐵能極顯著提高鐵表觀消化率和表觀代謝率(P0.01),分別提高了13.34%和22.42%;同時,飼糧添加甘氨酸亞鐵能顯著提高血清中的鐵飽和度和血液中的鐵含量(P0.05)。綜上,甘氨酸亞鐵可提高斷奶仔豬的生長性能,提高血液鐵含量,改善仔豬鐵代謝狀況,降低糞便鐵排出量,是一種綠色高效的新型補鐵劑。
[Abstract]:The purpose of this study was to study the effects of ferrous glycine on growth performance, apparent iron digestibility and serum iron related indexes in weaned piglets. The principle of balanced distribution of health status was divided into two groups, 6 replicates in each group, and 1 piglet in each replica. The experiment was divided into two stages. In stage 1: 2, the piglets were fed iron deficiency diet for 10 days, which made the piglets near anemia. Stage 2: the control group added 100 mg/kg of ferrous sulfate to the iron deficiency diet and the test group added 100 mg/kg of ferrous glycine to the diet for 10 days. The results showed that: compared with the addition of ferrous sulphate, the control group added 100 mg/kg of ferrous glycine to the diet for 10 days. The dietary supplementation of ferrous glycine had a tendency to decrease the feed weight ratio of piglets (P0. 10%) and decrease the weight gain of piglets (4. 57%), but the average daily gain (ADG) of piglets was higher than that of the piglets. The average daily intake was not significantly affected by P0.100.The dietary supplementation of ferrous glycine significantly decreased iron excretion and total iron excretion in feces by 23.11% and 22.09, respectively. The apparent iron digestibility and digestibility of ferric glycine were significantly increased by dietary supplementation of ferric glycine. The apparent metabolic rate was increased by 13.34% and 22.42, respectively. The iron saturation in serum and iron content in blood were significantly increased by adding ferrous glycine to diet. In conclusion, ferrous glycine could improve the growth performance, blood iron content and iron metabolism of weaned piglets. Reducing iron excretion from feces is a green and efficient new iron supplement agent.
【作者單位】： 華南農(nóng)業(yè)大學(xué)動物科學(xué)學(xué)院;華南農(nóng)業(yè)大學(xué)動物科學(xué)學(xué)院華農(nóng)聯(lián)佑飼用油脂研究中心;
【基金】：廣東省生豬產(chǎn)業(yè)技術(shù)體系崗位專家研究專項
【分類號】：S828.5
【正文快照】： 鐵是畜禽機體生長發(fā)育最重要的微量元素之一,同時也是多種酶的重要組分及活化因子,其參與機體多種生化反應(yīng),對于促進(jìn)動物生長、增強機體免疫、提高抗氧化等方面具有重要功能[1-2]。幼畜對鐵的需要尤為突出,缺鐵易出現(xiàn)缺鐵性貧血,甚至導(dǎo)致死亡[3-5]。目前,由于使用成本低,添加

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