Effects of different standardized ileal digestible lysine: net energy proportion in growing and finishing pigs
This experiment was performed to evaluate the optimal proportion of dietary standardized ileal digestible lysine (SID Lys) to net energy (NE) proportion in growing to finishing pigs. A total of seventy-two pigs were used at phase 1 (initial...
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| Format: | Article |
| Language: | English |
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Korean Society of Animal Sciences and Technology
2020-03-01
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| Series: | Journal of Animal Science and Technology |
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| Online Access: | http://www.ejast.org/archive/view_article?pid=jast-62-2-198 |
| _version_ | 1819100666540326912 |
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| author | Ji Hwan Lee Sung Dae Lee Won Yun Han Jin Oh Ji Seon An In Ho Kim Jin Ho Cho |
| author_facet | Ji Hwan Lee Sung Dae Lee Won Yun Han Jin Oh Ji Seon An In Ho Kim Jin Ho Cho |
| author_sort | Ji Hwan Lee |
| collection | DOAJ |
| description | This experiment was performed to evaluate the optimal proportion of dietary
standardized ileal digestible lysine (SID Lys) to net energy (NE) proportion in
growing to finishing pigs. A total of seventy-two pigs were used at phase 1
(initial body weight 37.23 ± 0.23 kilogram, for 42 d) and at phase 2
(initial body weight 54.16 ± 0.20 kilogram, for 77 d). They were
arbitrarily assigned to three treatments groups consisting of four duplicates
per treatment (six pigs in duplicates, respectively). Diet treatments were as
follows: CON = basal diets (phase 1, crude protein (CP): 19.1%; SID Lys: 0.94%;
SID Lys: NE proportion: 0.91 g/MJ / phase 2, CP: 17.0%; SID Lys: 0.84%; SID Lys:
NE proportion: 0.79 g/MJ), TRT1 (phase 1, CP: 18.0%; SID Lys: 0.92%; SID Lys: NE
proportion: 0.89 g/MJ / phase 2, CP: 15.8%; SID Lys: 0.8%; SID Lys: NE
proportion: 0.75 g/MJ), TRT2 (phase 1, CP: 17.3%; SID Lys: 0.82%; SID Lys: NE
proportion: 0.79 g/MJ / phase 2, CP: 14.8%; SID Lys: 0.7%; SID Lys: NE
proportion: 0.65 g/MJ). In phase 1 and 2, growth performance did not
meaningfully be affected when SID Lys: NE proportion decreased with reducing CP
content. In phase 2, the nitrogen digestibility of CON group in 11 week was
higher (p < 0.05) than other treatments. Also, marbling and
firmness scores of TRT2 group diets increased (p < 0.05)
compared with those of CON group, but dissimilarities of other meat qualities
did not be detected among treatments. In conclusion, introduction of NE system
can reduce negative problems introduced when dietary CP decreased. Also, 0.79
and 0.65 g/MJ of SID Lys: NE proportion is the optimal Lys: NE proportion to
achieve improved pork quality without impairing the growth performance in
growing-finishing pigs, respectively. |
| first_indexed | 2024-12-22T01:06:24Z |
| format | Article |
| id | doaj.art-503398f77f6242e8b0e157b8bc78dd40 |
| institution | Directory Open Access Journal |
| issn | 2672-0191 2055-0391 |
| language | English |
| last_indexed | 2024-12-22T01:06:24Z |
| publishDate | 2020-03-01 |
| publisher | Korean Society of Animal Sciences and Technology |
| record_format | Article |
| series | Journal of Animal Science and Technology |
| spelling | doaj.art-503398f77f6242e8b0e157b8bc78dd402022-12-21T18:44:04ZengKorean Society of Animal Sciences and TechnologyJournal of Animal Science and Technology2672-01912055-03912020-03-0162219820710.5187/jast.2020.62.2.198jast-62-2-198Effects of different standardized ileal digestible lysine: net energy proportion in growing and finishing pigsJi Hwan Lee0Sung Dae Lee1Won Yun2Han Jin Oh3Ji Seon An4In Ho Kim5Jin Ho Cho6Division of Food and Animal Science, Chungbuk National University, Animal Nutritional Physiology Team, National Institute of Animal Science, Rural Development Administration, Division of Food and Animal Science, Chungbuk National University, Division of Food and Animal Science, Chungbuk National University, Division of Food and Animal Science, Chungbuk National University, Department of Animal Resource and Science, Dankook University, Division of Food and Animal Science, Chungbuk National University, This experiment was performed to evaluate the optimal proportion of dietary standardized ileal digestible lysine (SID Lys) to net energy (NE) proportion in growing to finishing pigs. A total of seventy-two pigs were used at phase 1 (initial body weight 37.23 ± 0.23 kilogram, for 42 d) and at phase 2 (initial body weight 54.16 ± 0.20 kilogram, for 77 d). They were arbitrarily assigned to three treatments groups consisting of four duplicates per treatment (six pigs in duplicates, respectively). Diet treatments were as follows: CON = basal diets (phase 1, crude protein (CP): 19.1%; SID Lys: 0.94%; SID Lys: NE proportion: 0.91 g/MJ / phase 2, CP: 17.0%; SID Lys: 0.84%; SID Lys: NE proportion: 0.79 g/MJ), TRT1 (phase 1, CP: 18.0%; SID Lys: 0.92%; SID Lys: NE proportion: 0.89 g/MJ / phase 2, CP: 15.8%; SID Lys: 0.8%; SID Lys: NE proportion: 0.75 g/MJ), TRT2 (phase 1, CP: 17.3%; SID Lys: 0.82%; SID Lys: NE proportion: 0.79 g/MJ / phase 2, CP: 14.8%; SID Lys: 0.7%; SID Lys: NE proportion: 0.65 g/MJ). In phase 1 and 2, growth performance did not meaningfully be affected when SID Lys: NE proportion decreased with reducing CP content. In phase 2, the nitrogen digestibility of CON group in 11 week was higher (p < 0.05) than other treatments. Also, marbling and firmness scores of TRT2 group diets increased (p < 0.05) compared with those of CON group, but dissimilarities of other meat qualities did not be detected among treatments. In conclusion, introduction of NE system can reduce negative problems introduced when dietary CP decreased. Also, 0.79 and 0.65 g/MJ of SID Lys: NE proportion is the optimal Lys: NE proportion to achieve improved pork quality without impairing the growth performance in growing-finishing pigs, respectively.http://www.ejast.org/archive/view_article?pid=jast-62-2-198digestibilitygrowth performancemeat qualitysid lysine: net energy |
| spellingShingle | Ji Hwan Lee Sung Dae Lee Won Yun Han Jin Oh Ji Seon An In Ho Kim Jin Ho Cho Effects of different standardized ileal digestible lysine: net energy proportion in growing and finishing pigs Journal of Animal Science and Technology digestibility growth performance meat quality sid lysine: net energy |
| title | Effects of different standardized ileal digestible lysine: net energy
proportion in growing and finishing pigs |
| title_full | Effects of different standardized ileal digestible lysine: net energy
proportion in growing and finishing pigs |
| title_fullStr | Effects of different standardized ileal digestible lysine: net energy
proportion in growing and finishing pigs |
| title_full_unstemmed | Effects of different standardized ileal digestible lysine: net energy
proportion in growing and finishing pigs |
| title_short | Effects of different standardized ileal digestible lysine: net energy
proportion in growing and finishing pigs |
| title_sort | effects of different standardized ileal digestible lysine net energy proportion in growing and finishing pigs |
| topic | digestibility growth performance meat quality sid lysine: net energy |
| url | http://www.ejast.org/archive/view_article?pid=jast-62-2-198 |
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