Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs
Choline is an essential nutrient for animals, but dietary choline is degraded in the rumen, and thus, should be offered as rumen-protected choline (RPC) in ruminants. In this article, we investigate the effect of RPC supplementation in feedlot lambs. Forty intact male Saint Croix lambs (average: 20....
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/10/9/1580 |
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| author | Jorge R. Kawas Jose F. Garcia-Mazcorro Hector Fimbres-Durazo Maria E. Ortega-Cerrilla |
| author_facet | Jorge R. Kawas Jose F. Garcia-Mazcorro Hector Fimbres-Durazo Maria E. Ortega-Cerrilla |
| author_sort | Jorge R. Kawas |
| collection | DOAJ |
| description | Choline is an essential nutrient for animals, but dietary choline is degraded in the rumen, and thus, should be offered as rumen-protected choline (RPC) in ruminants. In this article, we investigate the effect of RPC supplementation in feedlot lambs. Forty intact male Saint Croix lambs (average: 20.3 kg, 3–4 months of age) on a high grain-low roughage base feed were randomly assigned to four treatments (0, 0.1, 0.2, and 0.3% RPC on dry-matter basis; <i>n</i> = 10 per group). RPC was offered for 90 days after 15 days of adaptation. RPC supplementation was not associated with significant differences in dry matter intake, weight gain, gain:feed ratio, carcass weights, and the dressing percentages. There was a linear decrease in height to the shoulder (<i>p</i> = 0.013) and longissimus muscle area (<i>p</i> = 0.051) with higher RPC levels, and a higher backfat thickness and yield grade with 0.3% RPC compared to 0.1% RPC (<i>p</i> < 0.05). Blood triglycerides concentrations were higher in control (0% RPC) compared to 0.3% RPC (<i>p</i> = 0.008). The lack of significant effects on growth performance and the results on backfat thickness and yield grade, may indicate undesirable effects associated with RPC supplementation. More research is needed to establish the needs and specific quantities of RPC supplementation in feedlot lambs. |
| first_indexed | 2024-03-10T16:34:13Z |
| format | Article |
| id | doaj.art-bf2b73fdd0db4759bc6e37f4946b2a66 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T16:34:13Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-bf2b73fdd0db4759bc6e37f4946b2a662023-11-20T12:38:07ZengMDPI AGAnimals2076-26152020-09-01109158010.3390/ani10091580Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot LambsJorge R. Kawas0Jose F. Garcia-Mazcorro1Hector Fimbres-Durazo2Maria E. Ortega-Cerrilla3Facultad de Agronomia, Universidad Autonoma de Nuevo Leon, General Escobedo 66050, MexicoResearch and Development, MNA de Mexico, San Nicolas de los Garza 66477, MexicoFacultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Nuevo Leon, General Escobedo 66050, MexicoPrograma de Ganadería, Colegio de Postgraduados, Montecillo 56230, MexicoCholine is an essential nutrient for animals, but dietary choline is degraded in the rumen, and thus, should be offered as rumen-protected choline (RPC) in ruminants. In this article, we investigate the effect of RPC supplementation in feedlot lambs. Forty intact male Saint Croix lambs (average: 20.3 kg, 3–4 months of age) on a high grain-low roughage base feed were randomly assigned to four treatments (0, 0.1, 0.2, and 0.3% RPC on dry-matter basis; <i>n</i> = 10 per group). RPC was offered for 90 days after 15 days of adaptation. RPC supplementation was not associated with significant differences in dry matter intake, weight gain, gain:feed ratio, carcass weights, and the dressing percentages. There was a linear decrease in height to the shoulder (<i>p</i> = 0.013) and longissimus muscle area (<i>p</i> = 0.051) with higher RPC levels, and a higher backfat thickness and yield grade with 0.3% RPC compared to 0.1% RPC (<i>p</i> < 0.05). Blood triglycerides concentrations were higher in control (0% RPC) compared to 0.3% RPC (<i>p</i> = 0.008). The lack of significant effects on growth performance and the results on backfat thickness and yield grade, may indicate undesirable effects associated with RPC supplementation. More research is needed to establish the needs and specific quantities of RPC supplementation in feedlot lambs.https://www.mdpi.com/2076-2615/10/9/1580cholinerumen-protected cholinefeedlot lambslipid metabolism |
| spellingShingle | Jorge R. Kawas Jose F. Garcia-Mazcorro Hector Fimbres-Durazo Maria E. Ortega-Cerrilla Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs Animals choline rumen-protected choline feedlot lambs lipid metabolism |
| title | Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs |
| title_full | Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs |
| title_fullStr | Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs |
| title_full_unstemmed | Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs |
| title_short | Effects of Rumen-Protected Choline on Growth Performance, Carcass Characteristics and Blood Lipid Metabolites of Feedlot Lambs |
| title_sort | effects of rumen protected choline on growth performance carcass characteristics and blood lipid metabolites of feedlot lambs |
| topic | choline rumen-protected choline feedlot lambs lipid metabolism |
| url | https://www.mdpi.com/2076-2615/10/9/1580 |
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