EFFECTS OF BARLEY PROCESSING ON THE BIO- PRODUCTIVE INDICES IN FATTENING WEANED LAMBS

Transcription

1 Lucrări ştiinńifice Zootehnie şi Biotehnologii, vol. 41(1) (2008) Timişoara EFFECTS OF BARLEY PROCESSING ON THE BIO- PRODUCTIVE INDICES IN FATTENING WEANED LAMBS EFECTUL PROCESĂRII ORZULUI ASUPRA INDICILOR BIOPRODUCTIVI LA TINERETUL OVIN SUPUS ÎNGRĂŞĂRII VOIA S. *, BOGDAN GH*, DRINCEANU D. *, PADEANU I. *, COŞIER VIORICA**, HRINCĂ GH *** * Faculty of Animal Science and Biotechnologie, Timişoara, România ** Faculty of Animal Science and Biotechnologie, Cluj, România *** S.C.D.O. PopăuŃi, Botoşani, România The objective of our reearche wa to oberve the nutritive and productive effect of the ratio, offered at dicretion, compoed of alfalfa and barley under the following preentation form: whole grain, roughly ground (4mm) with and without addition of yeat, train Yea-Sacc 1026, to lamb ubmitted for fattening. The experiment lated 54 day, the biological material wa repreented by Turcana lamb, grouped in three lot (n=12). Growth performance were ignificant bigger (p< 0.04) for the final body weight, total weight gain and average daily gain, but the pecific intake wa decreaed with 0.49 UNC in lamb that conumed ground barley prior to thoe that conumed whole barley grain. The addition of Saccharomyce cereviiae, train Yea-Sacc 1026 in the ground barley at 4 mm ha a more productive and evident effect (p<0.02) regarding final body weight, total weight and average daily weigh compared to the lamb fed with whole barley grain, with a pecific intake lower with 0.89 UNC. Key word: lamb, fattening, nutrition, barley, yeat Introduction When fattening young lamb, the proceing degree of different ration component may influence the nutrient available for animal body. For a better utilization of the forage conumed by young lamb, we may alo intervene with the addition of probiotic in the concentrate mixture. The objective of our reearche wa to determine how doe the barley ground in 4-mm particle, with and without addition of Saccharomyce cereviiae, exert an effect upon growth indice in lamb ubmitted to fattening compared to a whole barley grain diet. 586

2 Material and Method Our reearche were performed at the Didactic Station Timioara in Turcana weaned lamb, 98 day old, proceeded from imple birth. At the beginning of the experimental period, the lamb wa randomly divided into three group, each group wa made of 12 lamb, according to the experiment organization program preented in table 1.The lamb group were maintained in helter, under the ame environmental condition. - Group 1 (control) wa feed at dicretion with alfalfa and whole barley grain. - Group 2 wa feed with the ame diet, but barley wa grounded into 4 mm particle. - Group 3 had the ame feed ratio like group 2, but the grounded barley wa added with Saccharomyce cereviiae, train Yea-Sacc 1026, in amount of 2 g/kg forage (2 ). Experiment organization program Table 1 Group 1 Group 2 Group 3 Fattening lamb at the age period of day (n) Nutritive factor Whole barley grain Ground barley at the ize of 4mm Ground barley at the ize of 4mm + Saccharomyce cereviiae, Yea-Sacc g/kg barley Lamb group were contituted, two week, before the experiment beginning. An accommodation period wa neceary for lamb o that they could accutom to the new condition of maintenance and feed. The forage intake/group wa regitered daily uing a cale with an accuracy of 0.1 kg. Body weight evolution wa etablihed through weighing each lamb at the age of 98 day (at the beginning of the experimental period) and at 152 day (at the end of the experimental period). The reult achieved, biotatitically proceed, were compared between them with the help of the Mann Whitney tet. Reult and Dicuion During the entire period, we may notice (table 2) that lamb in group 1 conumed with kg, repectively with kg le and with 66.5 kg, repectively 50.6 kg le barley than the lamb in group 2 and 3. The difference between variant 2 and 3 i only 5.8 kg for (a bigger intake in group 3) and 15.9 kg for barley (a bigger intake in group 2). 587

3 If we analyze the average value of intake/lamb/day, then we may oberve that lamb in group 3 eat daily more with 186 g, repectively with 9 g compared to the lamb in group 1 and 2. The bigget barley intake wa oberved in group 2 with a daily intake of 102 g, repectively 24 g more than the lamb in group 1 and 3. The barley proceed through grinding at 4 mm particle, offered to group 2, lead to the decreae of the pecific intake with 0.49 UNC/kg body weight compared to group 1. The addition of the yeat Saccharomyce cereviiae, train Yea-Sacc1026 in a proportion of 2 in the barley ground at 4 mm lead to the achievement of a pecific intake lower with 0.88 UNC, repectively with 0.39 UNC compared to group 1, repectively group 2. So, by grinding barley into 4 mm particle and by adding Saccharomyce cereviiae, the converion of the dry feed offered in group 2 and 3 i higher, leading to the achievement of lower pecific intake. Table 2 Nutritional index realized by fattening lamb in the experimental period Feed conumption /group/period (kg) conumption /lamb/day (kg) Specific conumption (UNC) Group 1 Group 1 Group 1 Whole Ground barley barley grain (4mm) Ground barley Yea- Sacc ,2 810,5 380, ,611 1,251 0, ,58 3,40 3, In the analyi of data preented in table 3, we may notice that there are not ignificant difference between group 1 and 2 (p>0.05) regarding initial body weight (21.80 kg, repectively kg), but the difference are ignificant (p<0.04) regarding final body weight (30.85 kg, repectively kg), total weight (9.05 kg, repectively kg) and average daily weight (168 g, repectively 212 g). The addition of the yeat Saccharomyce cereviiae train Yea-Sacc 1026 in the 4 mm- ground barley offered to group 3 exert a more evident effect compared to group 1, fed with whole barley grain (table 4). So that the difference between the two variant mentioned above are inignificant (p>0.05) regarding initial body weight (21.63 kg, repectively kg), but they are ignificant (p<0.02) regarding final body weight (33.53 kg, repectively kg), total weight (11.91 kg, repectively 9.05 kg) and average daily weight (221 g, repectively 168 g). Concluively, the bioproductive performance achieved are favorable for the lamb in the experimental group 2 and 3 that conumed roughly ground barley and ground barley in mixture with Saccharomyce cereviiae train Yea-Sacc

4 Productive index realized by fattening lamb from group 1 and 2 in the experimental period Table 3 Initial body weight (kg) Final body weigh (kg) Total weigh gain (kg) daily gain (g) Group 1 Whole barley grain n Group 2 Ground barley (4mm) X ± S x cv% n X ± S x cv% Difference L 1 -L ± ± Mann- Whitney TEST 0.95 n ± ± * ± ± * ± ± * Productive index realized by fattening lamb from group 1 and 3 in the experimental period Table 4 Initial body weight (kg) Final body weigh (kg) Total weigh gain (kg) daily gain (g) Group 1 Whole barley grain n Group 3 Ground barley + Yea-Sacc 1026 X ± S x cv% n X ± S x cv% Difference L 1 -L 3 Mann- Whitney TEST ± ±0, n ± ±0, * ± ±0, * ± ±4, *

5 Concluion - In the lamb feed with 4 mm ground barley, the difference are ignificantly bigger (p<0.04), with 2.41 kg, repectively 44 g for the total body weight and average daily weight, compared to the lamb feed with whole barley grain, and the pecific intake i lower with 6.46%. - In the lamb feed with 4 mm ground barley added with Saccharomyce cereviiae train Yea-Sacc 1026, the difference are ignificantly bigger (p<0.02) with 2.86 kg, repectively 53 g regarding the total body weight and average daily weight, compared to the lamb feed with whole barley grain, and the pecific intake i lower with 11.61%. Bibliography 1. Drînceanu D. (1994) - AlimentaŃia animalelor, Timişoara, Editura Euroart. 2. Pădeanu I. (2002 ) - ProducŃiile ovinelor şi caprinelor, Timişoara, Editura Mirton,. 3. Voia O. Drinceanu D. (2006) Hrănirea tineretului ovin în diferite iteme de îngrăşare, Timişoara, Editura Waldpre. 590