Datum
2023Autor
Dominguez-Viveros, JoelSchlagwort
570 Biowissenschaften, Biologie 590 Tiere (Zoologie) 630 Landwirtschaft, Veterinärmedizin MexikoZebuRinderzuchtGewichtszunahmeMetadata
Zur Langanzeige
Aufsatz
Estimation of growth parameters in Brahman cattle from Mexico
Zusammenfassung
The objectives were to evaluate non-linear models (NLM) to define the growth curve of Brahman cattle in Mexico. The database was derived from weight development control, with live weight measurements (150,932 in females and 286,804 in males) taken in the interval from birth to 1095 days of age. Four NLM were evaluated: Brody, Bertalanffy, Gompertz and Logistic. The selection of the NLM with the best adjustment was made based on the Akaike and Bayesian information criteria. Growth parameters were generated: adult weight (AW), growth rate (GR), correlation (ϒ) between AW and GR, age and weight at the inflection point, evolution of live weight (as a percentage of adult weight), maturity level, daily growth rate (DGR; kg/day-¹). The model with the best fit was Brody, followed by Bertalanffy. For AW, the average value was 787.2 kg for males and 592.1 kg for females; for GR, the average values (%) were 0.28 for males and 0.25 for females. All ¡ were less than -0.90. The DGR, for males presented values in the range of 0.347 to 0.786 and a mean of 0.537; for females, the mean was 0.424 with values in the range of 0.274 to 0.620. Heifers at 15 months of age reach an average weight of 287 kg, representing 57.7% of the adult weight. The growth analysis shows the response and/or adaptation to tropical livestock, based on a growth curve with a constant growth rate and no inflection point.
Zitierform
In: Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS) Vol. 124 / No. 1 (2023) eissn:2363-6033Sammlung(en)
Vol 124, No 1 (2023) (Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS))Zitieren
@article{doi:10.17170/kobra-202306128204,
author={Dominguez-Viveros, Joel},
title={Estimation of growth parameters in Brahman cattle from Mexico},
journal={Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS)},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/14872 3000 Dominguez-Viveros, Joel 4000 Estimation of growth parameters in Brahman cattle from Mexico / Dominguez-Viveros, Joel 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/14872=x R 4204 \$dAufsatz 4170 5550 {{Mexiko}} 5550 {{Zebu}} 5550 {{Rinderzucht}} 5550 {{Gewichtszunahme}} 7136 ##0##http://hdl.handle.net/123456789/14872
2023-07-05T14:44:33Z 2023-07-05T14:44:33Z 2023 doi:10.17170/kobra-202306128204 http://hdl.handle.net/123456789/14872 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ tropical livestock Bos indicus nonlinear models weight gain Zebu cattle 570 590 630 Estimation of growth parameters in Brahman cattle from Mexico Aufsatz The objectives were to evaluate non-linear models (NLM) to define the growth curve of Brahman cattle in Mexico. The database was derived from weight development control, with live weight measurements (150,932 in females and 286,804 in males) taken in the interval from birth to 1095 days of age. Four NLM were evaluated: Brody, Bertalanffy, Gompertz and Logistic. The selection of the NLM with the best adjustment was made based on the Akaike and Bayesian information criteria. Growth parameters were generated: adult weight (AW), growth rate (GR), correlation (ϒ) between AW and GR, age and weight at the inflection point, evolution of live weight (as a percentage of adult weight), maturity level, daily growth rate (DGR; kg/day-¹). The model with the best fit was Brody, followed by Bertalanffy. For AW, the average value was 787.2 kg for males and 592.1 kg for females; for GR, the average values (%) were 0.28 for males and 0.25 for females. All ¡ were less than -0.90. The DGR, for males presented values in the range of 0.347 to 0.786 and a mean of 0.537; for females, the mean was 0.424 with values in the range of 0.274 to 0.620. Heifers at 15 months of age reach an average weight of 287 kg, representing 57.7% of the adult weight. The growth analysis shows the response and/or adaptation to tropical livestock, based on a growth curve with a constant growth rate and no inflection point. open access Dominguez-Viveros, Joel 77-82 Mexiko Zebu Rinderzucht Gewichtszunahme publishedVersion eissn:2363-6033 No. 1 Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS) Vol. 124 false true
Die folgenden Lizenzbestimmungen sind mit dieser Ressource verbunden: