[논문]Effects of Feeding Rice Protein Concentrate on Growth Performance and Ileal Digestibility in Early-weaned Pigs

Yun, J.H.; Yong, J.S.; Chae, B.J.

doi:10.5713/ajas.2005.384

Effects of Feeding Rice Protein Concentrate on Growth Performance and Ileal Digestibility in Early-weaned Pigs 원문보기

Asian-Australasian journal of animal sciences, v.18 no.3, 2005년, pp.384 - 389

Yun, J.H. (Division of Animal Resources, Kangwon National University) , Yong, J.S. (Division of Animal Resources, Kangwon National University) , Chae, B.J. (Division of Animal Resources, Kangwon National University)

Abstract ▼ AI-Helper

These experiments were conducted to evaluate the feeding value of rice protein concentrate (RPC) in weaning pigs. In expt. I, a 5-week feeding trial was conducted with 126 pigs (L${\times}$Y${\times}$D; 21 d-old; 5.32${\pm}$0.34 kg). Treatments were spray-dried plasma protein (SDPP; control), soy protein concentrate (SPC) and RPC (phase 1), and dried porcine soluble (DPS; control), SPC and RPC (phase 2). An ileal digestibility trial was also conducted to compare digestibility of amino acids in the tested protein sources. In expt. II, 160 weaning pigs (L${\times}$Y${\times}$D; 21 d-old; 5.65${\pm}$0.35 kg) were used in a 5-week feeding trial to determine the optimal inclusion level of RPC in the diet. Treatments were control (9% SPC), and three levels of RPC instead of SPC in the diets (3, 6 and 9%). During phase 1, pigs fed SDPP showed better (p<0.05) ADG and FCR compared with those fed SPC or RPC, while there was no difference in ADFI among treatments. During phase 2, however, pigs fed DPS showed lower (p<0.05) ADG than those fed SPC or RPC. During the total period, there were no significant differences in ADG, ADFI and FCR among treatments. The apparent ileal digestibilities of his, lys, phe, thr and met were not different among the tested protein sources. The apparent ileal digestibilities of arg, ile, leu and val were lower (p<0.05) in RPC than SDPP. The true ileal digestibilities of arg and leu were lower (p<0.05) in RPC than SDPP and SPC. However, that of met was higher (p<0.05) in RPC than SDPP. In expt. II, there were no significant differences in ADG and FCR when SPC was substituted with RPC up to 9% during the total period. In conclusion, based on our experimental results, RPC would replace SPC in the complex prestarter diet, which is somewhat cheaper than SPC.

주제어

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가설 설정

a, b Values with different superscripts of the same row significantly differ (p<0.05).

제안 방법

I, a feeding trial was conducted with a total of 126 weaning pigs (LandracexYorkshirexDuroc; 21 d-old; 5.32±0.34 kg initial body weight) for 5 weeks to compare the effects of feeding RPC, animal protein and SPC at a commercial farm in Korea.
In expt. I, a feeding trial was conducted with a total of 126 weaning pigs (LandracexYorkshirexDuroc; 21 d-old; 5.32±0.34 kg initial body weight) for 5 weeks to compare the effects of feeding RPC, animal protein and SPC at a commercial farm in Korea. For the feeding trial, piglets were allotted to three treatments (3 replicates/treatment) on the basis ofsex and body weight (gender ratio was 50:50).
Therefore, these experiments were conducted to evaluate the feeding values of RPC (comparative growth performance with other protein sources, especially with SPC, optimal dietary level, and ileal digestibility of amino acids) in weaning pigs.
To study apparent fecal digestibility of nutrients in experimental diets, during the 3rd and 5th weeks of the feeding trials, fecal samples were taken from 4 pigs in each pen and pooled by pen (3 samples per treatment). Feces were dried in an air forced drying oven at 60℃ for 3 days for chemical analysis.
Piglets were allotted to four treatments (4 replicates/treatment) on the basis of sex and body weight (gender ratio was 50:50). Treatments were control (9% SPC, 0% RPC), and three levels of RPC instead of SPC in the diet were formulated by replacing SPC on equal basis (3, 6 and 9 %), respectively. Iso-caloric and iso-nitrogenous diets (mash) were formulated to contain 1.

대상 데이터

A total of 20 castrated piglets (LandracexYorkshirexDuroc; 21 d-old; 5.20±0.14 kg initial body weight) were used in a completely randomized design and housed in individual cages.
45%, respectively, and all diets were mash. The protein sources used in this study were SDPP (APC, USA), DPS 30 (Nutra-Flo, USA), SPC (Euroduna, German) and RPC (Jungjin Co. Ltd., Korea).

데이터처리

Statistical analysis was carried out by comparing means according to Duncan's multiple range test (Duncan, 1955), by using General Linear Model (GLM) procedure of SAS (1985) package program.
Statistical analysis was carried out by comparing means according to Duncan's multiple range test (Duncan, 1955), by using General Linear Model (GLM) procedure of SAS (1985) package program. Data were analyzed as a randomized complete block design.

성능/효과

II). During phase II and overall study in experiment II, the ADFI was significantly higher (p=0.037 and p=0.029, respectively) in 9% RPC added diet than SPC in control diet. A linear trend was noticed with respect to ADFI during these phases of study.
II, a total of 160 weaning pigs (Landrace x YorkshirexDuroc; 21 d-old; 5.65±0.35kg initial body weight) were used in a 5-week feeding trial to determine the optimal inclusion level of RPC in the diet.
II, a total of 160 weaning pigs (Landrace×Yorkshire×Duroc; 21 d-old; 5.65±0.35kg initial body weight) were used in a 5-week feeding trial to determine the optimal inclusion level of RPC in the diet.
, 1999). In their study, feed intake was mostly improved when SDPP was included in the phase 1 diet, resulting in improved ADG. However, in this study feed intake was not increased in pigs fed the SDPP diet.

참고문헌 (30)

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저자의 다른 논문 :

표제어: PCR

동의어: Packet Collision Rate

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용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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