VetSRev
Database of veterinary systematic reviews
Database of veterinary systematic reviews
Link: https://agris.fao.org/agris-search/search.do?recordID=ES2011000270
Currently available models for dairy goats (INRA, 2007; NRC, 2007; Avondo et al., 2008) estimated dry matter intake (DMI) from body weight (BW) and milk yield (MY). A model comparison for similar BW showed marked differences in predicted DMI depending on MY (0 to 6 L/d). A meta-analysis of dairy goat intake data published in 125 papers indexed in PubMed and Science Direct was done, resulting in a total of 219 values normally distributed. Milk yield was standardized to 3.5% milk fat (MY₃[sub:.]₅[sub:%]). Goat performances ranged from 29.0 to 85.5 kg BW, 0.4 to 6.2 L/d MY₃[sub:.]₅[sub:%] and 0.8 to 3.5 kg DMI/d. Prediction models were (+or-SEM; _P_\textless0.001): DMI (+or-0.099)=1.233+0.370 x MY₃[sub:.]₅[sub:%]; R²=0.69 DMI (+or-0.075)=0.553+0.277 x MY₃[sub:.]₅[sub:%]+0.018 x BW; R²=0.76 The meta-analysis models showed the lowest error of prediction (-0.030 kg DM/d), being lower than those of the Avondo et al. (-0.092 kg DM/d) and INRA (-0.101 kg DM/d) models. On the contrary, the NRC overestimated intake (+0.185 kg DM/d).
Caja, G., Roca, X., & Salama, A. K. K. (2011). [A meta-analysis for comparing dry matter intake prediction models in dairy goats]. Asociacion Interprofesional para el Desarrollo Agrario. https://agris.fao.org/agris-search/search.do?recordID=ES2011000270 [Indexed using CAB Thesaurus terms], meta-analysis, Animal Nutrition (Production Responses) [LL520], performance traits, Dairy Animals [LL110], Mathematics and Statistics [ZZ100], milk fat, body weight, models, dry matter, feed intake, milk yield, dairy performance, goats, milk yielding animals