Age and weight at puberty in tropical dairy criollo heifers with and without supplementary feeding
| dc.creator | VICTOR HUGO SEVERINO LENDECHY | |
| dc.creator.id | info:eu-repo/dai/mx/cvu/176980 | |
| dc.creator.idone | info:eu-repo/dai/mx/cvu/19228 | |
| dc.creator.idtwo | info:eu-repo/dai/mx/cvu/25458 | |
| dc.creator.one | FELIPE MONTIEL PALACIOS | |
| dc.creator.two | PONCIANO PEREZ HERNANDEZ | |
| dc.date.accessioned | 2018-04-10T01:30:11Z | |
| dc.date.available | 2018-04-10T01:30:11Z | |
| dc.date.issued | 2017-02-16 | |
| dc.description | The e ect of supplementary feeding on age and weight at puberty was evaluated in 79 pre-pubertal Tropical Dairy Criollo (TDC) heifers of 8 and 10 months of age, distributed in four treatments: T1 and T2) 8 month old heifers with and without supplementary feeding (WSF, n= 20) and (NSF, n= 20), respectively; T3 and T4) 10 month old heifers (WSF, n= 20) and (NSF, n= 19). Average age and weight at puberty in T2 and T4 was 20.4 ± 0.5 months and 287.2 ± 5.9 kg compared with 17.5 ± 0.6 months and 296.8 ± 7.8 kg in T1 and T3 (p < 0.05). The number, follicular diameter (mm) and concentration of progesterone (ng mL<sup>−1</sup>) in blood was higher (p < 0.05) in T1 and T3 compared to T2 and T4. Supplementary feeding decreases the age at puberty, increases weight gain, improves follicular development and increases blood progesterone concentration in TDC females. | |
| dc.identifier.uri | https://ri.ujat.mx/handle/20.500.12107/989 | |
| dc.language.iso | eng | |
| dc.rights | info:eu-repo/semantics/openAccess | es_MX |
| dc.rights.license | http://creativecommons.org/licenses/by-nc-nd/4.0 | es_MX |
| dc.subject.cti | info:eu-repo/classification/cti/6 | |
| dc.title | Age and weight at puberty in tropical dairy criollo heifers with and without supplementary feeding | |
| dc.type | info:eu-repo/semantics/article |