Performance of dairy cows supplemented with by-pass fat under heat stress conditions
The objective of this study was to determine the effect of supplementation with a protected fat source on the productive response, metabolic environment and physiological indicators in Holstein cows under heat stress conditions during a 12-week experimental period. Thirty Holstein cows were distribu...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Scientific Research Publishing Inc.
2023
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/13860 https://www.scirp.org/journal/paperinformation.aspx?paperid=122311 https://doi.org/10.4236/ojas.2023.131006 |
| _version_ | 1855485254273335296 |
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| author | Roskopf Perez, Pablo Matías Tieri, Maria Paz Cuatrin, Alejandra Ceron Cucchi, Maria Esperanza Gere, José Ignacio Salado, Eloy Eduardo |
| author_browse | Ceron Cucchi, Maria Esperanza Cuatrin, Alejandra Gere, José Ignacio Roskopf Perez, Pablo Matías Salado, Eloy Eduardo Tieri, Maria Paz |
| author_facet | Roskopf Perez, Pablo Matías Tieri, Maria Paz Cuatrin, Alejandra Ceron Cucchi, Maria Esperanza Gere, José Ignacio Salado, Eloy Eduardo |
| author_sort | Roskopf Perez, Pablo Matías |
| collection | INTA Digital |
| description | The objective of this study was to determine the effect of supplementation with a protected fat source on the productive response, metabolic environment and physiological indicators in Holstein cows under heat stress conditions during a 12-week experimental period. Thirty Holstein cows were distributed in 15 blocks by parity (2.0 ± 1.1), days in milk (182 ± 80) and milk production (29.4 ± 5.7 kg·day-1) at the beginning of the trial and randomly assigned within each block to the following treatments (diets): SPF: supplementation with protected fat or WPF: without supplementation with protected fat. All the cows were kept in a dry-lot where they were given a partial mixed ration (PMR) ad libitum while in the milking parlor they received individual supplementation depending on the treatment. The SPF diet contained 4.0 kg·day-1 concentrate in pellet form + 0.6 kg·day-1 ground corn grain + 0.7 kg·day-1 protected fat, while the WPF diet was similar to that offered in SPF, but the protected fat was isoenergetically replaced by ground corn grain. The fat supplement contained fats of animal and vegetable origin and microencapsulation was used for its preparation. Total dry matter and metabolic energy intakes were similar (p > 0.05) between treatments. Fat corrected milk (4% FCM) production was higher (p = 0.04), while energy corrected milk and fat productions tended (p = 0.06) to be higher in cows from the SPF group, without effects (p > 0.05) on the rest of the milk production and composition parameters. These results could be attributed to an improvement in the efficiency of the use of the energy consumed. Protected fat supplementation neither modified the metabolic profile, nor reduced the respiratory rate and body temperature of heat-stressed cows. Future research is needed to explain this latter result. |
| format | Artículo |
| id | INTA13860 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Scientific Research Publishing Inc. |
| publisherStr | Scientific Research Publishing Inc. |
| record_format | dspace |
| spelling | INTA138602025-04-08T14:24:57Z Performance of dairy cows supplemented with by-pass fat under heat stress conditions Roskopf Perez, Pablo Matías Tieri, Maria Paz Cuatrin, Alejandra Ceron Cucchi, Maria Esperanza Gere, José Ignacio Salado, Eloy Eduardo Dairy Cattle Heat Stress Ganado de Leche Estrés Térmico By-pass Fat Grasa Pasante The objective of this study was to determine the effect of supplementation with a protected fat source on the productive response, metabolic environment and physiological indicators in Holstein cows under heat stress conditions during a 12-week experimental period. Thirty Holstein cows were distributed in 15 blocks by parity (2.0 ± 1.1), days in milk (182 ± 80) and milk production (29.4 ± 5.7 kg·day-1) at the beginning of the trial and randomly assigned within each block to the following treatments (diets): SPF: supplementation with protected fat or WPF: without supplementation with protected fat. All the cows were kept in a dry-lot where they were given a partial mixed ration (PMR) ad libitum while in the milking parlor they received individual supplementation depending on the treatment. The SPF diet contained 4.0 kg·day-1 concentrate in pellet form + 0.6 kg·day-1 ground corn grain + 0.7 kg·day-1 protected fat, while the WPF diet was similar to that offered in SPF, but the protected fat was isoenergetically replaced by ground corn grain. The fat supplement contained fats of animal and vegetable origin and microencapsulation was used for its preparation. Total dry matter and metabolic energy intakes were similar (p > 0.05) between treatments. Fat corrected milk (4% FCM) production was higher (p = 0.04), while energy corrected milk and fat productions tended (p = 0.06) to be higher in cows from the SPF group, without effects (p > 0.05) on the rest of the milk production and composition parameters. These results could be attributed to an improvement in the efficiency of the use of the energy consumed. Protected fat supplementation neither modified the metabolic profile, nor reduced the respiratory rate and body temperature of heat-stressed cows. Future research is needed to explain this latter result. EEA Rafaela Fil: Roskopf, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Fil: Tieri, Maria Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Fil: Cuatrin, Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. Fil: Ceron Cucchi, Maria Esperanza. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiologia; Argentina. Fil: Gere, Jose Ignacio. Universidad Tecnológica Nacional. División de Investigación y Desarrollo de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Salado, Eloy. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. 2023-01-09T13:26:49Z 2023-01-09T13:26:49Z 2023-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13860 https://www.scirp.org/journal/paperinformation.aspx?paperid=122311 Roskopf, P.M., Tieri, M.P., Cuatrin, A., Cucchi, M.E.C., Gere, J.I. and Salado, E.E. (2023) Performance of Dairy Cows Supplemented with By-Pass Fat under Heat Stress Conditions. Open Journal of Animal Sciences , 13, 82- 97. doi: 10.4236/ojas.2023.131006. 2161-7597 (print) 2161-7627 (online) https://doi.org/10.4236/ojas.2023.131006 eng info:eu-repograntAgreement/INTA/2019-PD-E1-I019-001/2019-PD-E1-I019-001/AR./Estrategias de alimentación y nutrición para la intensificación de la producción de carne y leche info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Scientific Research Publishing Inc. Open Journal of Animal Sciences 13 : 82-97 (2023) |
| spellingShingle | Dairy Cattle Heat Stress Ganado de Leche Estrés Térmico By-pass Fat Grasa Pasante Roskopf Perez, Pablo Matías Tieri, Maria Paz Cuatrin, Alejandra Ceron Cucchi, Maria Esperanza Gere, José Ignacio Salado, Eloy Eduardo Performance of dairy cows supplemented with by-pass fat under heat stress conditions |
| title | Performance of dairy cows supplemented with by-pass fat under heat stress conditions |
| title_full | Performance of dairy cows supplemented with by-pass fat under heat stress conditions |
| title_fullStr | Performance of dairy cows supplemented with by-pass fat under heat stress conditions |
| title_full_unstemmed | Performance of dairy cows supplemented with by-pass fat under heat stress conditions |
| title_short | Performance of dairy cows supplemented with by-pass fat under heat stress conditions |
| title_sort | performance of dairy cows supplemented with by pass fat under heat stress conditions |
| topic | Dairy Cattle Heat Stress Ganado de Leche Estrés Térmico By-pass Fat Grasa Pasante |
| url | http://hdl.handle.net/20.500.12123/13860 https://www.scirp.org/journal/paperinformation.aspx?paperid=122311 https://doi.org/10.4236/ojas.2023.131006 |
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