The effect of corn kernel texture and alpha-amylase addition in performance and digestibility of diets for weaned pigs

被引：8
|
作者：
Piovesan, Vanessa [2 ]
de Oliveira, Vladimir [1 ]
Gewehr, Clovis Eliseu [3 ]
机构：
[1] Univ Fed Santa Catarina, CCA, Dept Zootecnia & Desenvolvimento Rural, Florianopolis, SC, Brazil
[2] Univ Estadual Oeste Parana UNIOESTE, Programa Posgrad Zootecnia, Marechal Candido Rodondo, PR, Brazil
[3] Univ Estado Santa Catarina UDESC, Ctr Ciencias Agrovet, Dept Prod Anim & Alimentos, Lages, SC, Brazil
来源：
CIENCIA RURAL | 2011年 / 41卷 / 11期
关键词：
animal nutrition; digestibility; starch; swine production; EXOGENOUS ENZYMES; STARCH; BROILERS; MAIZE; GRAIN;
D O I：
10.1590/S0103-84782011005000134
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Two experiments were carried out to evaluate the effects of diets with different corn grain textures and amylase supplementation on nutrients digestibility and nursery piglets' performance. Twelve castrated piglets (7.96 +/- 0.31kg) were individually housed in metabolic crates and 75 piglets (7.87 +/- 0.67kg) penned in 15 nursery pens. In both experiments the treatments consisted of three isonutritive diets: 1. semi dent corn grain; 2. flint corn grain, and 3. flint corn grain + amylase. There was effect of treatments (P<0.05) in digestible (DE) and metabolisable energy (ME), with the semi dent corn grain diet having DE and ME higher values (3872 versus 3767kcal DE kg(-1) and 3778 versus 3660kcal ME kg(-1), respectively) than flint dent corn grain diet. The amylase addition increased the DE and ME in flint dent corn diet (3872 versus 3826kcal DE kg(-1) and 3778 versus 3742kcal ME kg(-1), respectively). The corn grain characteristics didn't influence (P<0.05) feed intake, average daily gain and feed conversion and amylase addition didn't affect (P>0.05) the performance characteristics studied. In conclusion, diets with flint or semi dent corns and amylase supplementation did not improve the performance of piglets. On the other hand, semi dent corn diet has more digestible energy in comparison with flint corn diet and amylase addition increase energy values of flint corn diet.
引用
收藏
页码：2014 / 2019
页数：6
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