Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves
A meta-analysis was conducted to determine the effect of age on digestibility of liquid feeds fed to preweaned Holstein calves. Calves were 4 to 76 d of age and fed whole milk or milk replacer containing all-milk protein. Least squares means of apparent total-tract N, DM, and fat digestibilities (n...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | JDS Communications |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666910221000351 |
| _version_ | 1797788475367358464 |
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| author | J.D. Quigley T.S. Dennis F.X. Suarez-Mena T.M. Hill K.M. Aragona |
| author_facet | J.D. Quigley T.S. Dennis F.X. Suarez-Mena T.M. Hill K.M. Aragona |
| author_sort | J.D. Quigley |
| collection | DOAJ |
| description | A meta-analysis was conducted to determine the effect of age on digestibility of liquid feeds fed to preweaned Holstein calves. Calves were 4 to 76 d of age and fed whole milk or milk replacer containing all-milk protein. Least squares means of apparent total-tract N, DM, and fat digestibilities (n = 84, 51, and 24, respectively) from 12 publications were used. Broken line regression and mixed model ANOVA were used to determine ages at which digestion of nutrients no longer increased with age, indicating maturation of digestive capacity. Digestibility of DM, N, and fat reached maximum digestibilities of 94.1, 92.7, and 97.5% at 29, 29, and 32 d of age, respectively. These data indicate age-related changes in digestion of liquid feeds in preweaned Holstein calves and allow correction of apparent total-tract digestibility estimates in nutrient supply models. Digestibility of liquid nutrients in calves fed whole milk or all milk containing milk replacers reached maximal capacity at approximately 30 d of age. |
| first_indexed | 2024-03-13T01:36:03Z |
| format | Article |
| id | doaj.art-9d420084a1fd49c38ef713c8e112e2e5 |
| institution | Directory Open Access Journal |
| issn | 2666-9102 |
| language | English |
| last_indexed | 2024-03-13T01:36:03Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | JDS Communications |
| spelling | doaj.art-9d420084a1fd49c38ef713c8e112e2e52023-07-04T05:10:31ZengElsevierJDS Communications2666-91022021-05-0123114117Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calvesJ.D. Quigley0T.S. Dennis1F.X. Suarez-Mena2T.M. Hill3K.M. Aragona4Corresponding author; Nurture Research Center, Provimi North America, Cargill Animal Nutrition, Brookville, OH 45309Nurture Research Center, Provimi North America, Cargill Animal Nutrition, Brookville, OH 45309Nurture Research Center, Provimi North America, Cargill Animal Nutrition, Brookville, OH 45309Nurture Research Center, Provimi North America, Cargill Animal Nutrition, Brookville, OH 45309Nurture Research Center, Provimi North America, Cargill Animal Nutrition, Brookville, OH 45309A meta-analysis was conducted to determine the effect of age on digestibility of liquid feeds fed to preweaned Holstein calves. Calves were 4 to 76 d of age and fed whole milk or milk replacer containing all-milk protein. Least squares means of apparent total-tract N, DM, and fat digestibilities (n = 84, 51, and 24, respectively) from 12 publications were used. Broken line regression and mixed model ANOVA were used to determine ages at which digestion of nutrients no longer increased with age, indicating maturation of digestive capacity. Digestibility of DM, N, and fat reached maximum digestibilities of 94.1, 92.7, and 97.5% at 29, 29, and 32 d of age, respectively. These data indicate age-related changes in digestion of liquid feeds in preweaned Holstein calves and allow correction of apparent total-tract digestibility estimates in nutrient supply models. Digestibility of liquid nutrients in calves fed whole milk or all milk containing milk replacers reached maximal capacity at approximately 30 d of age.http://www.sciencedirect.com/science/article/pii/S2666910221000351 |
| spellingShingle | J.D. Quigley T.S. Dennis F.X. Suarez-Mena T.M. Hill K.M. Aragona Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves JDS Communications |
| title | Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves |
| title_full | Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves |
| title_fullStr | Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves |
| title_full_unstemmed | Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves |
| title_short | Meta-analysis of effects of age on intestinal digestibility of liquid feeds in young calves |
| title_sort | meta analysis of effects of age on intestinal digestibility of liquid feeds in young calves |
| url | http://www.sciencedirect.com/science/article/pii/S2666910221000351 |
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