Effects of Dietary Energy Concentration and Lysine on the Digestible Energy Ratio for Apparent Amino Acid Digestibility in Finishing Barrows

Cho, S. B.; Lee, H. J.; Chung, I. B.; Long, Hong; Lim, Ji-Hoon; Kim, Y. Y.; Han, In K.

doi:10.5713/ajas.2008.60322

Cited by 7 publications

(10 citation statements)

References 19 publications

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“…Therefore, essential amino acid digestibility data are presented and discussed, whereas the nonessential amino acid data were excluded. In this study, increasing Lys concentration significantly increased the Arg, His, Met, Lys, Thr and total essential amino acid digestibility during the first 7 days, Similarly, Cho et al . (2008) also demonstrated the higher apparent digestibility of all amino acids except for leucine, proline, alanine and tyrosine with increasing Lys levels.…”

Section: Discussionsupporting

confidence: 81%

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Effects of different fermented soy protein and apparent ileal digestible lysine levels on weaning pigs fed fermented soy protein‐amended diets

Yan

Wang

Kim

2011

Animal Science Journal

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Two experiments were conducted to evaluate the effect of different fermented soybean proteins and the apparent ileal digestible lysine levels on weaning pigs fed fermented soy protein (FSP)-amended diets. In Exp. 1, 70 crossed piglets (6.25 ± 0.40 kg) were used in a 5-week trial to evaluate two different FSP. In Exp. 2, 20 weaning barrows (6.15 ± 0.45 kg) were used in a metabolism trial to determine the effects of the apparent ileal digestible (1.2, 1.3, 1.4 and 1.5%) lysine levels in weaning pigs fed FSP (5%) diet. In Exp. 1, pigs fed the diet containing Lactobacillus spp. FSP showed higher nitrogen (N) digestibility (P<0.05), lower blood urea nitrogen and serum creatinine levels (P<0.05) than those fed the Aspergillus oryzae FSP diet. In Exp. 2, increasing dietary lysine levels increased the average daily gain, apparent dry matter, N digestibility, N retention and essential amino acids in the current study (P<0.05), with the 1.5% showing the highest value. In conclusion, pigs fed Lactobacillus spp. FSP had a higher N digestibility than those fed A. oryzae FSP. The optimal apparent ileal digestibility lysine level in fermented soy protein diets (3550 kcal/kg metabolizable energy) for maximizing growth performance and N utilization in the first 7 days (6.25 kg) was 1.5%.

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Section: Discussionsupporting

confidence: 81%

“…Moreover, it is well known that higher energy levels require higher amino acid levels in diets, since feed intake will be decreased by increases in the diet. Cho et al . (2008) also suggested that maintaining the appropriate lysine : energy ratio is very important as the energy density of the diet increased.…”

Section: Discussionmentioning

confidence: 99%

Effects of different fermented soy protein and apparent ileal digestible lysine levels on weaning pigs fed fermented soy protein‐amended diets

Yan

Wang

Kim

2011

Animal Science Journal

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“…The oil content of the high nutrient density diet was about 51 g kg −1 while the low density diet contained soybean oil at less than 6 g kg −1 . A higher energy content of the diet improves fat digestibility too . So, a higher fat content and a higher fat digestibility of a high nutrient density diet results in the better performance of the chickens that received the high nutrient density diet.…”

Section: Resultsmentioning

confidence: 99%

“…A higher energy content of the diet improves fat digestibility too. 23 So, a higher fat content and a higher fat digestibility of a high nutrient density diet results in the better performance of the chickens that received the high nutrient density diet. Similarly, it has been reported that increased nutrient density increased weight gain and improved feed conversion ratio in growing pigs and suggested it was significantly associated with improved feed intake, which may explain the increased growth performance in the present study too.…”

Section: Resultsmentioning

confidence: 99%

Effect of dietary nutrient density and vitamin premix withdrawal on performance and meat quality of broiler chickens

Mirshekar

Dastar

Shábanpour

et al. 2013

J. Sci. Food Agric.

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“…Previous studies have been conducted using variable ratios of lysine to energy [ 1 ]. Cho et al [ 5 ] observed that the best lysine to digestible energy (DE) ratio for maximum amino acid digestibility of the pig is 2.4 g total lysine/Mcal DE for barrows (Landrace × Yorshire × Duroc; 64 kg). Chang et al [ 6 ] showed that the optimal lysine to DE ratios were 3.2 and 3.8 g total lysine/Mcal DE for barrows and gilts (Landrace × Yorshire × Duroc; 16 to 57 kg), respectively.…”

Section: Introductionmentioning

confidence: 99%

Effects of the standardized ileal digestible lysine to metabolizable energy ratio on performance and carcass characteristics of growing-finishing pigs

Zeng

Wang

et al. 2012

J Animal Sci Biotechnol

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A total of 2,121 growing-finishing pigs (Duroc × Landrace × Large White) were utilized in six experiments conducted to determine the effects of different ratios of standardized ileal digestible lysine (SID-Lys) to metabolizable energy (ME) on the performance and carcass characteristics of growing-finishing pigs. Exps. 1 (30 to 50 kg), 2 (52 to 70 kg) and 3 (81 to 104 kg) were conducted to find an optimum ME level and then this level was used in Exps. 4 (29 to 47 kg), 5 (54 to 76 kg) and 6 (84 to 109 kg) to test the response of pigs to different ratios of SID-Lys:ME. In Exps.1 to 3, four treatments were used consisting of diets with a formulated ME content of 3.1, 3.2, 3.3 or 3.4 in Exps. 1 and 2 while Exp. 3 used 3.05, 3.15, 3.25 or 3.35 Mcal/kg. A constant SID-Lys:ME ratio of 2.6, 2.3 or 2.0 g/Mcal was used in Exps. 1, 2 and 3, respectively. Weight gain was significantly increased with increasing energy level in Exp.1 while weight gain was unaltered in Exps. 2 and 3. For all three experiments, feed intake was decreased (P < 0.05) and feed efficiency was improved (P < 0.05) with increasing energy level. Tenth rib back fat thickness linearly increased (P < 0.05) with increasing energy level. In Exps. 4 to 6, five treatments were used consisting of diets with a SID-Lys:ME ratio of 2.4, 2.6, 2.8, 3.0 or 3.2 in Exp. 1, 2.1, 2.3, 2.5, 2.7, 2.9 or 3.2 in Exp. 2 and 1.8, 2.0, 2.2, 2.4, or 2.6 in Exp. 3. A constant ME level 3.2, 3.2 and 3.05 Mcal/kg was used in Exps. 1, 2 and 3, respectively (selected based on the results of weight gain). For all three experiments, weight gain increased (P < 0.05) and feed efficiency improved linearly (P < 0.05) as the SID-Lys:ME ratio increased. Tenth rib back fat thickness linearly decreased (P < 0.05) as the SID-Lys:ME ratio increased. Based on a straight broken-line model, the estimated SID-Lys:ME ratio to maximize weight gain was 3.0, 2.43 and 2.2 for 29 to 47, 54 to76 and 84 to 109 kg of pigs, respectively.

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Effects of Dietary Energy Concentration and Lysine on the Digestible Energy Ratio for Apparent Amino Acid Digestibility in Finishing Barrows

Abstract: This experiment was performed to investigate the effects of two energy levels and four lysine:digestible energy (DE)

Cited by 7 publications

References 19 publications

Effects of different fermented soy protein and apparent ileal digestible lysine levels on weaning pigs fed fermented soy protein‐amended diets

Effects of different fermented soy protein and apparent ileal digestible lysine levels on weaning pigs fed fermented soy protein‐amended diets

Effect of dietary nutrient density and vitamin premix withdrawal on performance and meat quality of broiler chickens

Effects of the standardized ileal digestible lysine to metabolizable energy ratio on performance and carcass characteristics of growing-finishing pigs

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