The aim of this study was to investigate whether proerties of milk from Girgentana goats of different as1-CN genotypes were affected by the energy intake at pasture. Thirty six goats were genotyped at as1-CN locus using several genomic techniques and milk protein analysis. Eight genotypes associted with low (FF, 2 goats), medium (AF, AN, BF, BN, 21 goats) and high (AA, AB, BB, 13 goats) as1-CN level have beed typed. The increase in energy intake (E) of goats from low (<1.8 Mcal/d) to medium (1.82.0 Mcal/d) and high level (>2.0 Mcal/d) corresponded to an increasing dry matter intake, diet CP percentage, milk yield and clotting parameters, and a reduction in milk fat. Depending on genotypes linked to increasign as1-CN, milk was higher in casein, curd firming time and curd firmness. Significant interaction between the effect of energy intake and as1-CN genotype was found for curd firming time and curd firmness, suggesting that changes in milk properties caused by feeding regimen could be different for goats differing in as1-CN genotype
Bonanno, A., Finocchiaro, R., DI GRIGOLI, A., Sardina, M., Tornambè, G., & Gigli, I. (2007). Energy intake effects at pasture on milk production and coagulation properties in girgentana goats with different as1-cn genotypes. In Proceedings of International Symposium of the 25th International Goat Association (IGA) - 24-26 May 2007, Bella, Italy (pp.191-194).
Autori: | Bonanno, A.; Finocchiaro, R.; DI GRIGOLI, A.; Sardina, M.; Tornambè, G.; Gigli, I. | |
Titolo: | Energy intake effects at pasture on milk production and coagulation properties in girgentana goats with different as1-cn genotypes | |
Settore Scientifico Disciplinare: | Settore AGR/19 - Zootecnica Speciale | |
Data di creazione: | 2007-05 | |
Nome del convegno: | International Symposium of the 25th International Goat Association (IGA) - 24-26 May 2007, Bella, Italy | |
Luogo del convegno: | Bella, Italy | |
Anno del convegno: | 24-26 May 2007 | |
Numero del convegno: | 25th | |
Data di concessione: | 2007-05 | |
Data di pubblicazione: | 2007 | |
Formato: | A stampa | |
Numero di pagine: | 4 | |
Citazione: | Bonanno, A., Finocchiaro, R., DI GRIGOLI, A., Sardina, M., Tornambè, G., & Gigli, I. (2007). Energy intake effects at pasture on milk production and coagulation properties in girgentana goats with different as1-cn genotypes. In Proceedings of International Symposium of the 25th International Goat Association (IGA) - 24-26 May 2007, Bella, Italy (pp.191-194). | |
Tipologia: | 0 - Proceedings (TIPOLOGIA NON ATTIVA) | |
Appare nelle tipologie: | 0 - Proceedings (TIPOLOGIA NON ATTIVA) |
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