Effects of Dietary Energy Composition on Growth, Nutrient Digestibility and Serum Biochemistry of Two-line Crossbred Gilts

LIU Jing; FANG Gui-you; MIAO Fu-rong; YE Ding-cheng; LI Zhong-rong; LIN Chang-guang; LIU Ya-xuan; DONG Zhi-yan

doi:10.19303/j.issn.1008-0384.2019.04.008

Volume 34 Issue 4

Jul. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2019 > 34(4): 427-432

LIU Jing, FANG Gui-you, MIAO Fu-rong, YE Ding-cheng, LI Zhong-rong, LIN Chang-guang, LIU Ya-xuan, DONG Zhi-yan. Effects of Dietary Energy Composition on Growth, Nutrient Digestibility and Serum Biochemistry of Two-line Crossbred Gilts[J]. Fujian Journal of Agricultural Sciences, 2019, 34(4): 427-432. doi: 10.19303/j.issn.1008-0384.2019.04.008

Citation:

LIU Jing, FANG Gui-you, MIAO Fu-rong, YE Ding-cheng, LI Zhong-rong, LIN Chang-guang, LIU Ya-xuan, DONG Zhi-yan. Effects of Dietary Energy Composition on Growth, Nutrient Digestibility and Serum Biochemistry of Two-line Crossbred Gilts[J]. Fujian Journal of Agricultural Sciences, 2019, 34(4): 427-432. doi: 10.19303/j.issn.1008-0384.2019.04.008

Citation:

LIU Jing, FANG Gui-you, MIAO Fu-rong, YE Ding-cheng, LI Zhong-rong, LIN Chang-guang, LIU Ya-xuan, DONG Zhi-yan. Effects of Dietary Energy Composition on Growth, Nutrient Digestibility and Serum Biochemistry of Two-line Crossbred Gilts[J]. Fujian Journal of Agricultural Sciences, 2019, 34(4): 427-432. doi: 10.19303/j.issn.1008-0384.2019.04.008

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Effects of Dietary Energy Composition on Growth, Nutrient Digestibility and Serum Biochemistry of Two-line Crossbred Gilts

doi: 10.19303/j.issn.1008-0384.2019.04.008

1.
Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agriculture Sciences, Fuzhou, Fujian 350013, China
2.
Fujian Guanghua Best Eco-agriculture Development Co. Ltd., Fuzhou, Fujian 350003, China

Received Date: 2019-01-22
Rev Recd Date: 2019-03-04
Publish Date: 2019-04-28

Abstract

Abstract

Objective Effects of varied dietary energy compositions in feed on the growth, apparent nutrient digestibility (AND), serum metabolites, and hormone concentration in gilts were studied. Method Ninety Landrace×Large white gilts with an initial body weight of 61.97±4.37 kg in a similar bodily appearance were randomly divided into 3 groups of 5 gilts each for the study. The gilts were fed with specially formulated forage that represented varied dietary iso-energetic and iso-nitrogenous energy structures. Diet 1 contained 49.70% starch, 2.81% lipids (EE) and 8.95% neutral dietary fiber (NDF); Diet 2, 43.52% starch, 5.68% EE and 12.53% NDF; and Diet 3, 37.13% starch, 8.73% EE and 16.02% NDF. Result As the starch content decreased and EE and NDF increased in the diet, the average daily weight gain (ADG) decreased, and the feed/weight gain ratio (F/G) of the gilts increased. Compared to the groups fed with Diet 1 and Diet 2, which were similar, the gilts fed with Diet 3 showed significantly lower ANDs on dry matters, crude protein, crude fiber, NDF, EE, and ash from feed (P < 0.05). The concentrations of circulating triglyceride and total cholesterol increased, and insulin decreased with a decrease on starch and increases on EE and NDF in diet, while no significant differences found on serum glucose (P>0.05). The concentrations of serum IGF-I and leptin in the group fed with Diet 1 were higher than that in the group fed with Diet 3 (P < 0.05). Conclusion Excessive reduction on starch and increase on EE and NDF in feed lowered the AND of the gilts reducing the forage utilization rate and altered the serum hormone secretion in gilts negatively affecting their growth performance.
- energy structure,
- two-line crossbred gilts,
- growth performance,
- apparent digestibility,
- serum indicators

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References(22)

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