| Autor: |
Priolo, Alessandro, Lanza, Massimiliano, Bella, Marco, Pennisi, Pietro, Fasone, Venera, Biondi, Luisa |
| Zdroj: |
Animal Research; 2002, Vol. 51 Issue: 4 p305-313, 9p |
| Abstrakt: |
Fourteen male Comisana lambs were divided into two groups of seven at age 45 days and were fed a diet containing 56% of dried carob pulp (as fed basis). One group (P10) received a supplement of 10 g of polyethylene glycol (PEG) for each kg of diet, while the second group (P40) received a supplement of 40 g of PEG for each kg of diet. Both diets were ground and supplied ad libitum. The experimental diet contained 2.1% of condensed tannins (CT) on a dry matter basis. The lambs fed the P40 diet had higher average daily gain than the P10 lambs ($P < 0.05$) and obtained higher live weights at slaughter ($P = 0.08$) although the dry matter intake was not different between the treatments. The increased level of PEG (P40 vs. P10 lambs) increased dry matter digestibility ($P = 0.07$) and nitrogen (N) and neutral detergent fibre (NDF) digestibility ($P < 0.01$). The carcasses from the P40 lambs were heavier and fattier than those from the P10 lambs ($P < 0.05$). Meat (l. dorsi muscle) from the P10 lambs showed higher ($P < 0.05$) values of lightness (L$^*$) compared to the P40 lambs. No differences in eating quality were registered among the groups. These results indicate that in a diet based on carob pulp (56%), 10 g of PEG per kg of diet are not sufficient to eliminate the effects of CT. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
