动物营养学报2011，Vol.23Issue(5)：755-762,8.DOI:10.3969/j.issn.1006-267x.2011.05.008
饲粮电解质平衡对断奶至2月龄生长肉兔生长性能和血液生理生化指标的影响
Effects of Dietary Electrolyte Balance on Growth Performance and Blood Physiological and Biochemical Indices of Weanling to 2-month-old Growing Meat Rabbits
摘要
Abstract
The experiment was conducted to determine the effects of dietary electrolyte balance (DEB) on growth performance and blood physiological and biochemical indices of weanling to 2-month-old meat rabbits. A total of 200 weanling rabbits were allocated into 5 treatments with 40 replicates per treatment and 1 rabbit per replicate. Rabbits in 5 treatments were fed diets with different DEB levels ( -150, 0,200,350 and 500 mEq/kg,respectively). There was a 7-day adaptation period and a 23-day experimental period. The results showed as follows: the DEB significantly affected the average daily feed intake (ADFI) ( P ＜ 0.01 ) and average daily gain (ADG) (P ＜0.05), but did not significantly affect the feed/gain ratio (P ＞ 0.05). With the DEB value increasing (0 to 350 mEq/kg), the ADFI and ADG of meat rabbits were increased, but there was no significant difference between treatments 3 and 4 (P ＞ 0. 05 ). The DEB did not significantly affected the plasma pH,HCO-3 concentration, arterial pressure of carbon dioxide ( PCO2 ), oxygen partial pressure ( PO2 ) and total carbon dioxide ( TCO2 ) concentration ( P ＞0. 05), but significantly affected the base excess (BE) ( P ＜0. 01 ) and anion gap (AG) (P ＜0. 05). Meanwhile, the BE in treatments 3, 4 and 5 was significantly higher than that in treatments 1 and 2 (P ＜0. 05), and the AG in treatments 3 and 4 was significantly lower than that in treatment 2 ( P ＜ 0. 05). The concentrations of Na +, K +, C1-, Ca2 +, and p5+, and the contents of total protein (TP),creatinine (CREA), creatine phosphokinase (CPK) and glutamic pyruvic transaminase (GPT) in serum were not significantly affected by the DEB ( P ＞ 0. 05). The contents of glucose (GLU), urea nitrogen (UN), triglyceride (TG), alkaline phosphatase (AKP) and total cholesterol (TCHO) in serum were significantly affected by the DEB ( P ＜0. 05 or P ＜0. 01 ). Besides, lower contents of serum TG, TCHO and AKP and higher contents of serum GLU and UN were found in treatments 3 and 4. The serum methionine content in treatment 4 ( DEB value was 350 mEq/kg) was significantly higher than that in the other treatments ( P ＜ 0. 05), and the contents of lysine, arginine and total amino acids in serum did not differ significantly among different treatments ( P ＞ 0. 05). In conclusion, in this experimental condition, the appropriate DEB values of weanling to 2-monthold growing meat rabbits were between 200 to 350 mEq/kg. [ Chinese Journal of Animal Nutrition, 2011, 23 (5) :755-762]关键词
生长肉兔/饲粮电解质平衡/生长性能/血液生理生化指标Key words
growing meat rabbits/ dietary electrolyte balance/ growth performance/ blood physiological and biochemical indices分类
农业科技引用本文复制引用
李君伟,麻名文,王雪鹏,王春阳,李福昌..饲粮电解质平衡对断奶至2月龄生长肉兔生长性能和血液生理生化指标的影响[J].动物营养学报,2011,23(5):755-762,8.基金项目
国家公益性行业(农业)科研专项(3-52) （农业）
现代农业产业技术体系建设专项(nycytx-44) （nycytx-44）
