Influences of Seleniferous Whole Crop Barley Supplement on Growth Performance and Blood Characteristics in Growing Pigs

Abstract

This study was conducted to investigate effects of different levels of seleniferous whole crop barley (WCB) supplementation on performance, and blood characteristics as physiological responses in growing pigs. A total of 20 cross-bred pigs ((Landrace × Yorkshire) × Duroc) were divided into 4 treatments of 5 pigs each and experimental period lasted for 6 weeks. They were fed diets containing 0.1 (non-seleniferous WCB as controls), 0.2, 0.4, and 0.6 mg/kg levels of selenium (Se) by supplementing seleniferous WCB, and non-seleniferous or seleniferous WCB was formulated to 5% level in total ration. The diets were isonitrogenous (18% crude protein) and isocaloric (3,500 kcal/kg digestible energy) across treatments.Increasing levels of seleniferous WCB supplements did not affect feed intake and BW gain, and blood total protein concentration was (p<0.05) significantly higher for 0.2 mg/kg Se treatments than for controls. On d 14, blood albumin concentration was higher (p<0.05) for seleniferous WCB supplemented groups than for control group. Contrarily, blood glucose concentration was tended to be higher for controls than for seleniferous WCB groups. Blood total lipid concentration was significantly (p<0.05) lowered with increasing levels of seleniferous WCB. Serum glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase did not have any difference among treatments. It was tended that blood total cholesterol and triglyceride were lowered with increasing levels of seleniferous WCB. Blood Se concentration was significantly (p<0.05) increased with increasing levels of seleniferous WCB. The results indicate that Se present in seleniferous WCB had favorable effects on blood characteristics and blood Se increased by supplementing seleniferous WCB implies not only a good intestinal absorption of Se present in WCB but also the possibility of Se transfer into tissues.

Effects of mixed selenium sources on the physiological responses and blood profiles of lactating sows and tissue concentration of their progeny

“…As a result, organic selenium is used to produce selenium-rich livestock products, but organic selenium is not only highly dependent on imports, but also has a low added amount, which causes toxicity risks and expensive problems when consumed in excess [7]. Conversely, inorganic selenium is simple and inexpensive, but highly toxic.…”

“…When livestock are supplied with selenium sources (organic and inorganic), it is reported that organic selenium has a higher retention rate and accumulation efficiency in the intestines than inorganic selenium [ 5 , 6 ]. As a result, organic selenium is used to produce selenium-rich livestock products, but organic selenium is not only highly dependent on imports, but also has a low added amount, which causes toxicity risks and expensive problems when consumed in excess [ 7 ]. Conversely, inorganic selenium is simple and inexpensive, but highly toxic.…”

Effect of Seleniferous Whole Crop Barley Silage on Growth Performance, Blood and Carcass Characteristics, and Tissue Selenium Deposition in Finishing Hanwoo Steers

“…본 시험에서 혈중 면역글로불린수준은 유기셀레늄(T2: 셀레늄 강화 청보리 사일리지) 및 무기셀레늄 첨가수준이 0.9 ppm이상일 때 높게 나타나, 셀레늄을 급여 시 혈청 면 역글로불린농도가 증가하며 (Awadeh et al, 1998), 항체반응 이 향상된다고 보고하여 (Larsen and Tollersrud, 1981), 본 시험에서도 같은 결과를 보여, 셀레늄의 면역력 증강효과 를 (Arthur et al, 1993) 확인할 수 있었다. Lee et al (2012) …”