Multivariate approach to milk production and some physiological traits of crossbred dairy cows
The aim of the present study was to evaluate the changes in physiological responses and serum biochemical panel in crossbred dairy cow populations kept in a hot climate environment. We used a population of 384 dairy cows of genetic groups ½Holstein × ½Guzerá (n = 105) and ¾Holstein × ¼Guzerá (n = 27...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2017-08-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27520 |
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| author | Débora Andréa Evangelista Façanha Josiel Borges Ferreira Benito Soto-Blanco Magda Maria Guilhermino Jacinara Hody Gurgel Morais Leite Kelly Mary Nery Angela Maria de Vasconcelos Wirton Peixoto Costa |
| author_facet | Débora Andréa Evangelista Façanha Josiel Borges Ferreira Benito Soto-Blanco Magda Maria Guilhermino Jacinara Hody Gurgel Morais Leite Kelly Mary Nery Angela Maria de Vasconcelos Wirton Peixoto Costa |
| author_sort | Débora Andréa Evangelista Façanha |
| collection | DOAJ |
| description | The aim of the present study was to evaluate the changes in physiological responses and serum biochemical panel in crossbred dairy cow populations kept in a hot climate environment. We used a population of 384 dairy cows of genetic groups ½Holstein × ½Guzerá (n = 105) and ¾Holstein × ¼Guzerá (n = 279) derived from the Brazilian semiarid region. The physiological responses analyzed were: respiratory rate (RR, movements/minute), rectal temperature (RT, °C), free thyroxine (T4, µg/mL) and thyroid-stimulating hormone (TSH, µUI/mL). The values of RR, RT, T4, TSH and serum levels of glucose, cholesterol, total protein, urea and creatinine were determined and correlated with milk production for 305 days, correlation lying only with TSH. Significant differences were observed just in milk production, RR and TSH comparing the genetic groups ½Holstein × ½Guzerá and ¾Holstein × ¼Guzerá. In conclusion, ¾Holstein × ¼Guzerá cows showed higher thyroid activity and milk production than ½Holstein × ½Guzerá cows, and may therefore be a better option for dairy production systems in semiarid regions. |
| first_indexed | 2024-12-19T08:58:03Z |
| format | Article |
| id | doaj.art-8c33f1bd8bfd45cb82bbfaf5a59c4efa |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-19T08:58:03Z |
| publishDate | 2017-08-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-8c33f1bd8bfd45cb82bbfaf5a59c4efa2022-12-21T20:28:34ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592017-08-01384Supl12851285610.5433/1679-0359.2017v38n4Supl1p285115817Multivariate approach to milk production and some physiological traits of crossbred dairy cowsDébora Andréa Evangelista Façanha0Josiel Borges Ferreira1Benito Soto-Blanco2Magda Maria Guilhermino3Jacinara Hody Gurgel Morais Leite4Kelly Mary Nery5Angela Maria de Vasconcelos6Wirton Peixoto Costa7Universidade Federal Rural do Semi-ÁridoUniversidade Federal Rural do Semi-ÁridoUniversidade Federal de Minas GeraisUniversidade Federal do Rio Grande do NorteUniversidade Federal Rural do Semi-ÁridoUniversidade Federal do Rio Grande do NorteUniversidade Estadual Vale do AcaraúUniversidade Federal Rural do Semi-ÁridoThe aim of the present study was to evaluate the changes in physiological responses and serum biochemical panel in crossbred dairy cow populations kept in a hot climate environment. We used a population of 384 dairy cows of genetic groups ½Holstein × ½Guzerá (n = 105) and ¾Holstein × ¼Guzerá (n = 279) derived from the Brazilian semiarid region. The physiological responses analyzed were: respiratory rate (RR, movements/minute), rectal temperature (RT, °C), free thyroxine (T4, µg/mL) and thyroid-stimulating hormone (TSH, µUI/mL). The values of RR, RT, T4, TSH and serum levels of glucose, cholesterol, total protein, urea and creatinine were determined and correlated with milk production for 305 days, correlation lying only with TSH. Significant differences were observed just in milk production, RR and TSH comparing the genetic groups ½Holstein × ½Guzerá and ¾Holstein × ¼Guzerá. In conclusion, ¾Holstein × ¼Guzerá cows showed higher thyroid activity and milk production than ½Holstein × ½Guzerá cows, and may therefore be a better option for dairy production systems in semiarid regions.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27520AdaptabilityGenetic groupsMilk productionSemiarid regionTSHThyroxine. |
| spellingShingle | Débora Andréa Evangelista Façanha Josiel Borges Ferreira Benito Soto-Blanco Magda Maria Guilhermino Jacinara Hody Gurgel Morais Leite Kelly Mary Nery Angela Maria de Vasconcelos Wirton Peixoto Costa Multivariate approach to milk production and some physiological traits of crossbred dairy cows Semina: Ciências Agrárias Adaptability Genetic groups Milk production Semiarid region TSH Thyroxine. |
| title | Multivariate approach to milk production and some physiological traits of crossbred dairy cows |
| title_full | Multivariate approach to milk production and some physiological traits of crossbred dairy cows |
| title_fullStr | Multivariate approach to milk production and some physiological traits of crossbred dairy cows |
| title_full_unstemmed | Multivariate approach to milk production and some physiological traits of crossbred dairy cows |
| title_short | Multivariate approach to milk production and some physiological traits of crossbred dairy cows |
| title_sort | multivariate approach to milk production and some physiological traits of crossbred dairy cows |
| topic | Adaptability Genetic groups Milk production Semiarid region TSH Thyroxine. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27520 |
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