رسالة جامعية
Efectos de un protocolo de alimentación intensiva sobre el crecimiento y salud de becerras y becerros Holstein y Jersey en el trópico
| العنوان: | Efectos de un protocolo de alimentación intensiva sobre el crecimiento y salud de becerras y becerros Holstein y Jersey en el trópico |
|---|---|
| المؤلفون: | Navedo-Guzmán, Ninochka |
| المساهمون: | Ortiz-Colón, Guillermo, College of Agricultural Sciences, Sánchez-Rodríguez, Héctor L., Jiménez-Cabán, Esbal, Curbelo Rodríguez, Jaime E., Department of Animal Science, Plaza-Delestre, María de L. |
| سنة النشر: | 2020 |
| المجموعة: | Digital Institutional Repository @UPR (University of Puerto Rico - DiRe.UPR) |
| مصطلحات موضوعية: | Alimentación Intensiva, Crecimiento, Salud, Becerras, Calves -- Feeding and feeds, Calves -- Nutrition, Calves -- Growth, Holstein-Friesian cattle, Jersey cattle |
| الوصف: | The objective of this research was to assess the growth and health of Holstein and Jersey calves under an intensive feeding protocol (INT) and a traditional feeding protocol (TRA) under tropical conditions. Calves were divided into blocks based on their breed and gender (n=31). Each animal was in the feeding trial for 7 weeks. Both groups of calves were offered were fed pasteurized waste milk at 0600 and 1700 h daily for seven weeks. The TRA group was offered 3.78 L of milk per day for seven weeks. The amount of milk offered to the INT group was 3.78, 4.74, 5.68, 6.62 and 7.56 L/d from week one to week five, respectively. Afterwards the milk offered to the INT group was reduced to 5.68 and 3.32 L in weeks six and seven, respectively. Both groups were fed the same amount of calf starter (18% crude protein and 2.5% fat). The amount of calf starter offered daily was progressively increased from 0.23 to 0.91 kg from week 1 through 7. Morphometric measures (hip height, cross height, hip width and body length), weight, and health assessment were taken weekly. The data was analyzed with a Prox GLIMMIX with SAS. The feeding protocols did not influenced any of the evaluated parameters for Holstein (P=0.6803), Jersey (P=0.6803), male (P=0.9642) or female (P=0.9642) calves. In the weight parameter, at week 7, the female Holstein calves weighed 55.83 ± 5.00 and 54.19 ± 3.23 kg for the INT and TRA group respectively (P = 1.00). Similarly, both protocols had no effect on the health status of Holstein (P=0.3061), Jersey (P=0.3061), male (P=0.7914) or female (P=0.7914) calves. In conclusion, the INT feeding protocol failed to enhance body growth and did not affect the health status in dairy calves raised under tropical conditions. ; El objetivo de esta investigación fue evaluar el crecimiento y la salud de las becerras y becerros de las razas Holstein y Jersey bajo un protocolo de alimentación intensiva (INT) y un protocolo de alimentación tradicional (TRA) bajo condiciones tropicales. Los animales se dividieron en bloques ... |
| نوع الوثيقة: | thesis |
| وصف الملف: | application/pdf |
| اللغة: | Spanish; Castilian |
| العلاقة: | https://hdl.handle.net/20.500.11801/2645Test |
| الإتاحة: | https://doi.org/20.500.11801/2645Test https://hdl.handle.net/20.500.11801/2645Test |
| حقوق: | Attribution-NoDerivs 3.0 United States ; (c) 2020 Ninochka Navedo Guzmán ; http://creativecommons.org/licenses/by-nd/3.0/usTest/ |
| رقم الانضمام: | edsbas.E0AE1EA5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |