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.

Prandini, A., Sigolo, S., Morlacchini, M., Marocco, A., Lo Pinto, M., High protein maize in diets for growing pigs., <<ANIMAL FEED SCIENCE AND TECHNOLOGY>>, 2011; (1-2): 105-110 [http://hdl.handle.net/10807/5662]

High protein maize in diets for growing pigs.

Prandini, Aldo;Sigolo, Samantha;Morlacchini, Mauro;Marocco, Adriano;
2011

Abstract

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.
Inglese
Prandini, A., Sigolo, S., Morlacchini, M., Marocco, A., Lo Pinto, M., High protein maize in diets for growing pigs., <<ANIMAL FEED SCIENCE AND TECHNOLOGY>>, 2011; (1-2): 105-110 [http://hdl.handle.net/10807/5662]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/5662
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