Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets
Improving the amino acid (AA) profile of the diet by using l-Lys, l-Thr, dl-Met, l-Trp and l-Val helps to reduce the dietary CP content, thereby reducing nitrogen excretion while maintaining the performance of pigs. Valine is the fifth limiting AA in cereal–soybean meal-based diets. The extent to wh...
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| Format: | Article |
| Language: | English |
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Elsevier
2013-01-01
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| Series: | Animal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1751731112002339 |
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| author | M. Gloaguen N. Le Floc'h Y. Primot E. Corrent J. van Milgen |
| author_facet | M. Gloaguen N. Le Floc'h Y. Primot E. Corrent J. van Milgen |
| author_sort | M. Gloaguen |
| collection | DOAJ |
| description | Improving the amino acid (AA) profile of the diet by using l-Lys, l-Thr, dl-Met, l-Trp and l-Val helps to reduce the dietary CP content, thereby reducing nitrogen excretion while maintaining the performance of pigs. Valine is the fifth limiting AA in cereal–soybean meal-based diets. The extent to which the CP content in the diet can be reduced further without compromising performance depends on the requirement of the next limiting AA. In cereal–soybean meal-based diets, Ile, His and Leu may be the limiting AAs after Val, although information on the requirements for these AAs is scarce. Six experiments were conducted to determine the effect of supplementing a low-CP diet with l-Ile, l-His and l-Leu on the performance of pigs weighing 10 to 20 kg. Experiment 1 was designed to determine the most limiting AA with respect to performance among Ile, His and Leu. A diet 10% deficient in Ile, Leu and His relative to the National Research Council (NRC, 1998) requirement estimates tended to decrease daily feed intake and daily gain by 6% and 8%, respectively. A 10% deficiency in His alone had no effect, whereas a 10% deficiency in Ile or Leu slightly reduced daily feed intake and gain. In the remaining experiments, the standardized ileal digestible (SID) Ile : Lys, His : Lys and Leu : Lys requirements were estimated. In Experiments 2, 3, 4, 5 and 6, 14 blocks of six pigs each were assigned to six levels of SID Ile : Lys (40%, 43%, 46%, 49%, 52% and 55%), His : Lys (20%, 24%, 28%, 32%, 36% and 40%), His : Lys (21%, 24%, 27%, 30%, 33% and 36%), Leu : Lys (70%, 78%, 86%, 94%, 102% and 110%) and Leu : Lys (80%, 90%, 100%, 110%, 120% and 130%), respectively. Across experiments, the estimated SID Ile : Lys, His : Lys and Leu : Lys requirements for maximizing daily gain were 49%, 32% and 102%, respectively, using a curvilinear plateau model. When Ile, His and Leu levels were 10% below the requirement estimate, daily gain was reduced by 9%, 3% and 3%, respectively. The results of this study indicate that the Ile requirement estimate is lower than the current NRC requirement estimate, whereas the Leu and His requirements correspond to those proposed by the NRC. |
| first_indexed | 2024-12-14T14:01:50Z |
| format | Article |
| id | doaj.art-4066917006ea49309606a87f4e7535e8 |
| institution | Directory Open Access Journal |
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| last_indexed | 2024-12-14T14:01:50Z |
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| spelling | doaj.art-4066917006ea49309606a87f4e7535e82022-12-21T22:58:42ZengElsevierAnimal1751-73112013-01-0176901908Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based dietsM. Gloaguen0N. Le Floc'h1Y. Primot2E. Corrent3J. van Milgen4INRA, UMR1348 PEGASE, F-35590 Saint-Gilles, France; Agrocampus Ouest, UMR1348 PEGASE, F-35000 Rennes, France; AJINOMOTO EUROLYSINE s.a.s, F-75817 Paris Cedex 17, FranceINRA, UMR1348 PEGASE, F-35590 Saint-Gilles, France; Agrocampus Ouest, UMR1348 PEGASE, F-35000 Rennes, FranceAJINOMOTO EUROLYSINE s.a.s, F-75817 Paris Cedex 17, FranceAJINOMOTO EUROLYSINE s.a.s, F-75817 Paris Cedex 17, FranceINRA, UMR1348 PEGASE, F-35590 Saint-Gilles, France; Agrocampus Ouest, UMR1348 PEGASE, F-35000 Rennes, FranceImproving the amino acid (AA) profile of the diet by using l-Lys, l-Thr, dl-Met, l-Trp and l-Val helps to reduce the dietary CP content, thereby reducing nitrogen excretion while maintaining the performance of pigs. Valine is the fifth limiting AA in cereal–soybean meal-based diets. The extent to which the CP content in the diet can be reduced further without compromising performance depends on the requirement of the next limiting AA. In cereal–soybean meal-based diets, Ile, His and Leu may be the limiting AAs after Val, although information on the requirements for these AAs is scarce. Six experiments were conducted to determine the effect of supplementing a low-CP diet with l-Ile, l-His and l-Leu on the performance of pigs weighing 10 to 20 kg. Experiment 1 was designed to determine the most limiting AA with respect to performance among Ile, His and Leu. A diet 10% deficient in Ile, Leu and His relative to the National Research Council (NRC, 1998) requirement estimates tended to decrease daily feed intake and daily gain by 6% and 8%, respectively. A 10% deficiency in His alone had no effect, whereas a 10% deficiency in Ile or Leu slightly reduced daily feed intake and gain. In the remaining experiments, the standardized ileal digestible (SID) Ile : Lys, His : Lys and Leu : Lys requirements were estimated. In Experiments 2, 3, 4, 5 and 6, 14 blocks of six pigs each were assigned to six levels of SID Ile : Lys (40%, 43%, 46%, 49%, 52% and 55%), His : Lys (20%, 24%, 28%, 32%, 36% and 40%), His : Lys (21%, 24%, 27%, 30%, 33% and 36%), Leu : Lys (70%, 78%, 86%, 94%, 102% and 110%) and Leu : Lys (80%, 90%, 100%, 110%, 120% and 130%), respectively. Across experiments, the estimated SID Ile : Lys, His : Lys and Leu : Lys requirements for maximizing daily gain were 49%, 32% and 102%, respectively, using a curvilinear plateau model. When Ile, His and Leu levels were 10% below the requirement estimate, daily gain was reduced by 9%, 3% and 3%, respectively. The results of this study indicate that the Ile requirement estimate is lower than the current NRC requirement estimate, whereas the Leu and His requirements correspond to those proposed by the NRC.http://www.sciencedirect.com/science/article/pii/S1751731112002339histidineisoleucineleucinenutrient requirementspigs |
| spellingShingle | M. Gloaguen N. Le Floc'h Y. Primot E. Corrent J. van Milgen Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets Animal histidine isoleucine leucine nutrient requirements pigs |
| title | Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets |
| title_full | Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets |
| title_fullStr | Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets |
| title_full_unstemmed | Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets |
| title_short | Response of piglets to the standardized ileal digestible isoleucine, histidine and leucine supply in cereal–soybean meal-based diets |
| title_sort | response of piglets to the standardized ileal digestible isoleucine histidine and leucine supply in cereal soybean meal based diets |
| topic | histidine isoleucine leucine nutrient requirements pigs |
| url | http://www.sciencedirect.com/science/article/pii/S1751731112002339 |
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