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논문 기본 정보

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학술저널
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한국축산학회(구 한국동물자원과학회) 한국축산학회지 한국축산학회지 제56권 제3호
발행연도
2014.1
수록면
1 - 9 (9page)

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This study was conducted to evaluate the effects of dietary conjugated linoleic acid (CLA) on the performance oflactating sows and piglets as well as the immunity of piglets suckling from sows fed CLA. Eighteen multiparousDuroc sows with an average body weight (BW) of 232.0 ± 6.38 kg were randomly selected and assigned to twodietary treatments (n = 9 for each treatment), control (no CLA addition) and 1% CLA supplementation. For thecontrol diet, CLA was replaced with soybean oil. Experimental diets were fed to sows during a 28-day lactationperiod. Litter size for each sow was standardized to nine piglets by cross-fostering within 24 hours after birth. Sowmilk and blood samples were taken from sows and piglets after 21 and 27 days of lactation, respectively. Loss ofBW was significantly (p < 0.05) higher in sows fed control diet compared to sows fed CLA diet. Piglet weights atweaning and weight gain during suckling were significantly (p < 0.05) higher in sows fed CLA compared to sowsfed control diet. Serum non-esterified fatty acid (NEFA) and urea nitrogen concentrations were significantly(p < 0.05) lower in sows fed CLA than in sows fed soybean oil. IgG concentrations of the groups supplementedwith CLA increased by 49% in sow serum (p < 0.0001), 23% in milk (p < 0.05), and 35% in piglet serum (p < 0.05)compared with the control group. Sows fed CLA showed an increase of 10% in milk yield compared with sows fedsoybean oil (p < 0.05), even though there was no difference in daily feed intake between the treatments. Milk fatcontent was significantly (p < 0.05) lower in sows fed CLA than in sows fed soybean oil. Solid-not-fat yield wassignificantly (p < 0.05) higher in sows supplemented with CLA than in sows fed control diet and also protein-to-fatratio in milk was significantly (p < 0.05) higher in sows fed CLA compared with the control group. The results showthat CLA supplementation to sows increased milk yield without losing BW during lactation, whereas soybean oilsupplementation resulted in severe BW loss
#Conjugated linoleic acid #Milk yield #Body weight #Sows #Piglets

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참고문헌 (26)

참고문헌 신청
AOAC / 2005 / Official Methods of Analysis / Association of Official Analytical Chemists google schola Azain MJ / 1997 / Nutrition of the young pig, use of liquid diets / Assoc google schola Belury MA / 2002 / Dietary conjugated linoleic acid in health: Physiological effects and mechanisms of action / Annu Rev Nutr 22 : 505 ~ 524 google schola Bontempo V / 2004 / Dietary conjugated linoleic acid positively affects immunologic variables in lactating sows and piglets / J Nutr 134 : 817 ~ 824 google schola Boyd RD / 1998 / The Lactating Sow / Wageningen Press google schola

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