TY - JOUR
T1 - High protein maize in diets for growing pigs.
AU - Prandini, Aldo
AU - Sigolo, Samantha
AU - Morlacchini, Mauro
AU - Marocco, Adriano
AU - Lo Pinto, Mario
PY - 2011
Y1 - 2011
N2 - The objective of the study was to evaluate three commercial hybrids of high-protein maize against conventional maize using growing pigs in a 42 day performance study. The following experimental diets were compared: (1) basal diet containing conventional maize (control); (2) diet containing hybrid IPM1; (3) diet containing hybrid IPM2; and (4) diet containing hybrid IPM3. The diets were offered to female and castrated male commercial piglets (MBI LW, Fomeva; 36 pigs/treatment) in 2 phases: starter (D0–21) and finisher (D22–42). The 36 piglets for each dietary treatment were divided into 9 pens (replicates), with each pen containing 4 piglets of the same sex (5 and 4 pens with castrated males and females, respectively). The animals were housed in 5 rooms. The diets were assigned to the pens in a randomised complete block design and all the diets were iso-nitrogenous and isoenergetic. The protein contents of the high-protein maize hybrids were from 14.7 to 38.2% higher than the conventional maize and, with the exception of lysine, contained higher levels of both essential and non essential amino acids. The high-protein maize hybrids also contained more oil (range 19.4–53.1%) and less starch (range 14.5–17.9%) than the conventional maize. The pigs fed the diet based on IPM2 ate more feed in the second period (D22–42) (782, 744, 970 and 730 g/d, respectively, in conventional, IPM1, IPM2, and IPM3 maize; with P<0.05) than those on the other treatments and tended to grow faster (350, 361, 431 and 334 g/d, respectively, in conventional, IPM1, IPM2, and IPM3 maize; with P=0.06) and to be heavier at D42 (20.59, 21.23, 22.61 and 20.03 kg, respectively, in conventional, IPM1, IPM2, and IPM3 maize; with P=0.07) than pigs on the other three treatments. Pigs fed diets formulated with conventional and high-protein maize exhibited a similar feed conversion ratio. The results suggest substitution of conventional maize with high-protein maize may enable soybean meal to be reduced in pig diets without adverse effect on animal performance.
AB - The objective of the study was to evaluate three commercial hybrids of high-protein maize against conventional maize using growing pigs in a 42 day performance study. The following experimental diets were compared: (1) basal diet containing conventional maize (control); (2) diet containing hybrid IPM1; (3) diet containing hybrid IPM2; and (4) diet containing hybrid IPM3. The diets were offered to female and castrated male commercial piglets (MBI LW, Fomeva; 36 pigs/treatment) in 2 phases: starter (D0–21) and finisher (D22–42). The 36 piglets for each dietary treatment were divided into 9 pens (replicates), with each pen containing 4 piglets of the same sex (5 and 4 pens with castrated males and females, respectively). The animals were housed in 5 rooms. The diets were assigned to the pens in a randomised complete block design and all the diets were iso-nitrogenous and isoenergetic. The protein contents of the high-protein maize hybrids were from 14.7 to 38.2% higher than the conventional maize and, with the exception of lysine, contained higher levels of both essential and non essential amino acids. The high-protein maize hybrids also contained more oil (range 19.4–53.1%) and less starch (range 14.5–17.9%) than the conventional maize. The pigs fed the diet based on IPM2 ate more feed in the second period (D22–42) (782, 744, 970 and 730 g/d, respectively, in conventional, IPM1, IPM2, and IPM3 maize; with P<0.05) than those on the other treatments and tended to grow faster (350, 361, 431 and 334 g/d, respectively, in conventional, IPM1, IPM2, and IPM3 maize; with P=0.06) and to be heavier at D42 (20.59, 21.23, 22.61 and 20.03 kg, respectively, in conventional, IPM1, IPM2, and IPM3 maize; with P=0.07) than pigs on the other three treatments. Pigs fed diets formulated with conventional and high-protein maize exhibited a similar feed conversion ratio. The results suggest substitution of conventional maize with high-protein maize may enable soybean meal to be reduced in pig diets without adverse effect on animal performance.
KW - maize
KW - pigs
KW - protein
KW - maize
KW - pigs
KW - protein
UR - https://publicatt.unicatt.it/handle/10807/5662
UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=79953167818&origin=inward
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79953167818&origin=inward
U2 - 10.1016/j.anifeedsci.2011.02.014
DO - 10.1016/j.anifeedsci.2011.02.014
M3 - Article
SN - 0377-8401
SP - 105
EP - 110
JO - Animal Feed Science and Technology
JF - Animal Feed Science and Technology
IS - 1-2
ER -