Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer
Failure of passive immunity transfer is one of the main causes of increased susceptibility to infectious agents in newborn kids. To ensure successful transfer of passive immunity, kids need to be fed high-quality colostrum, containing an adequate concentration of IgG. This work evaluated the quality...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/2079-7737/12/4/626 |
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| author | Carlos C. Pérez-Marín David Cano Francisco A. Arrebola Valerii H. Petrusha Pavlo M. Skliarov José A. Entrenas Dolores C. Pérez-Marín |
| author_facet | Carlos C. Pérez-Marín David Cano Francisco A. Arrebola Valerii H. Petrusha Pavlo M. Skliarov José A. Entrenas Dolores C. Pérez-Marín |
| author_sort | Carlos C. Pérez-Marín |
| collection | DOAJ |
| description | Failure of passive immunity transfer is one of the main causes of increased susceptibility to infectious agents in newborn kids. To ensure successful transfer of passive immunity, kids need to be fed high-quality colostrum, containing an adequate concentration of IgG. This work evaluated the quality of colostrum obtained in the first 3 days postpartum from Malagueña dairy goats. The IgG concentration in colostrum was measured using an ELISA as a reference method, and it was estimated by optical refractometer. Colostrum composition in terms of fat and protein was also determined. The mean concentration of IgG was 36.6 ± 2.3 mg/mL, 22.4 ± 1.5 mg/mL and 8.4 ± 1.0 mg/mL on days 1, 2 and 3 after parturition, respectively. Brix values obtained using the optical refractometer were 23.2%, 18.6% and 14.1% for days 1, 2 and 3, respectively. In this population, 89% of goats produced high-quality colostrum with IgG concentrations of >20 mg/mL on the day of parturition, but this percentage declined dramatically over the following 2 days. The quality of the fresh colostrum estimated with the optical refractometer was positively correlated with those obtained using ELISA (<i>r</i> = 0.607, <i>p</i> = 0.001). This study highlights the importance of feeding first-day colostrum to newborn kids and demonstrates that the optical Brix refractometer is suitable for the on-farm estimation of IgG content in colostrum. |
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| issn | 2079-7737 |
| language | English |
| last_indexed | 2024-03-11T05:13:12Z |
| publishDate | 2023-04-01 |
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| record_format | Article |
| series | Biology |
| spelling | doaj.art-8dd45ca9d8f14161a116b21a2383b9d82023-11-17T18:24:54ZengMDPI AGBiology2079-77372023-04-0112462610.3390/biology12040626Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical RefractometerCarlos C. Pérez-Marín0David Cano1Francisco A. Arrebola2Valerii H. Petrusha3Pavlo M. Skliarov4José A. Entrenas5Dolores C. Pérez-Marín6Department of Animal Medicine and Surgery, Campus of Rabanales, University of Cordoba, 14071 Cordoba, SpainDepartment of Animal Medicine and Surgery, Campus of Rabanales, University of Cordoba, 14071 Cordoba, SpainInstituto de Investigación y Formación Agraria y Pesquera (IFAPA), Carretera el Viso km 2, Hinojosa del Duque, 14270 Cordoba, SpainDnipro State Agrarian and Economic University, Serhii Yefremov Str. 25, 49600 Dnipro, UkraineDnipro State Agrarian and Economic University, Serhii Yefremov Str. 25, 49600 Dnipro, UkraineDepartment of Animal Production, Campus of Rabanales, University of Cordoba, 14071 Cordoba, SpainDepartment of Animal Production, Campus of Rabanales, University of Cordoba, 14071 Cordoba, SpainFailure of passive immunity transfer is one of the main causes of increased susceptibility to infectious agents in newborn kids. To ensure successful transfer of passive immunity, kids need to be fed high-quality colostrum, containing an adequate concentration of IgG. This work evaluated the quality of colostrum obtained in the first 3 days postpartum from Malagueña dairy goats. The IgG concentration in colostrum was measured using an ELISA as a reference method, and it was estimated by optical refractometer. Colostrum composition in terms of fat and protein was also determined. The mean concentration of IgG was 36.6 ± 2.3 mg/mL, 22.4 ± 1.5 mg/mL and 8.4 ± 1.0 mg/mL on days 1, 2 and 3 after parturition, respectively. Brix values obtained using the optical refractometer were 23.2%, 18.6% and 14.1% for days 1, 2 and 3, respectively. In this population, 89% of goats produced high-quality colostrum with IgG concentrations of >20 mg/mL on the day of parturition, but this percentage declined dramatically over the following 2 days. The quality of the fresh colostrum estimated with the optical refractometer was positively correlated with those obtained using ELISA (<i>r</i> = 0.607, <i>p</i> = 0.001). This study highlights the importance of feeding first-day colostrum to newborn kids and demonstrates that the optical Brix refractometer is suitable for the on-farm estimation of IgG content in colostrum.https://www.mdpi.com/2079-7737/12/4/626colostrumgoatimmunoglobulin GrefractometerBrix |
| spellingShingle | Carlos C. Pérez-Marín David Cano Francisco A. Arrebola Valerii H. Petrusha Pavlo M. Skliarov José A. Entrenas Dolores C. Pérez-Marín Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer Biology colostrum goat immunoglobulin G refractometer Brix |
| title | Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer |
| title_full | Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer |
| title_fullStr | Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer |
| title_full_unstemmed | Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer |
| title_short | Colostrum Quality Assessment in Dairy Goats: Use of an On-Farm Optical Refractometer |
| title_sort | colostrum quality assessment in dairy goats use of an on farm optical refractometer |
| topic | colostrum goat immunoglobulin G refractometer Brix |
| url | https://www.mdpi.com/2079-7737/12/4/626 |
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