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[原文翻译] 第153期:断奶仔猪对于饲料含有豆粕、甘蓝型菜籽粕、芥菜型菜籽粕的偏好性研究

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发表于 2018-9-6 11:54:43 | 显示全部楼层 |阅读模式

2018.J. Anim. Sci. 96(2): 600-611

网站链接:https://academic.oup.com/jas/article-abstract/96/2/600/4827736

DOI:https://doi.org/10.1093/jas/skx052

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断奶仔猪对于饲料含有豆粕、甘蓝型菜籽粕、芥菜型菜籽粕的偏好性研究

JoseL. Landero, Li Fang Wang, Eduardo Beltranena, Clover J. Bench, and Ruurd T.Zijlstra

翻译:蒋辉 校对:上海亘泰实业集团

       甘蓝型油菜粕和芥菜型油菜籽粕(CM)在猪日粮中或许可以取代豆粕(SBM),但是它们的纤维、硫代葡萄糖苷和化学组成不同。本研究开展两个双料槽试验研究断奶仔猪对含20%豆粕、甘蓝型油菜籽粕或芥菜型油菜籽粕日粮的选择偏好性。

       在实验一,216头猪(初始体重9.4 ± 1.6 kg)放到27个栏舍里面,每个8头(4头母猪,4头阉公猪)。在实验二,2144头猪(初始体重8.9 ± 1.1 kg)放到36个栏舍里面,每个4头(2头母猪,2头阉公猪)。猪只提供3种处理:SBM和甘蓝型油菜籽粕对比、SBM和芥菜型油菜籽粕对比、甘蓝型油菜籽粕和芥菜型油菜籽粕对比,做一个3×3的拉丁方试验。通过菜籽油和合成氨基酸调节日粮营养,所有日粮含2.4Mcal NE/kg、4.5g标准回肠可消化Lys/Mcal NE。每个栏舍放置2个自由采食槽,试验一为粉料,试验二为颗粒料。总共进行3期比较,每期4天试验期、3天饲喂普通日粮的适应期。两个试验测试饲料偏好性时均会在不同圈中调换料槽中的饲料,并且在试验二中每天调换料槽位置。在实验前和不同试验期之间,试验一饲喂含豆粕的非试验料,试验二饲喂不含豆粕的非试验料。

       总体而言,猪只优先选择豆粕而不是甘蓝型油菜籽粕芥菜型油菜籽粕,优先选择甘蓝型油菜籽粕而不是芥菜型油菜籽粕(P < 0.001)。除了在试验一中饲喂芥菜型油菜籽粕日粮的肉料比更高外,日粮选择不会对其它生长性能有影响(P> 0.05)。总之,相对于油菜籽粕,断奶仔猪更喜欢豆粕,相对于含有更高硫代葡萄糖苷的芥菜型油菜籽粕,仔猪更喜欢甘蓝型油菜籽粕。与豆粕和甘蓝型油菜籽粕相比,断奶仔猪双料槽试验中饲喂芥菜型油菜籽粕并不会降低采食量、增重和肉料比。

关键词:菜籽粕,饲料偏好,生长性能,豆粕,断奶仔猪

Feed preference of weaned pigs fed diets containing soybean meal, Brassica napuscanola meal, or Brassica juncea canola meal

JoseL Landero  Li Fang Wang  Eduardo Beltranena  Clover J Bench  Ruurd T Zijlstra

Brassicanapus and Brassica juncea canola meal (CM) may replace soybean meal (SBM) in pig diets, but differ in fiber, glucosinolates content and profile. Preference of weaned pigs provided double-choice selections to diets containing 20% SBM, B. napus CM, or B. juncea CM was evaluated in two studies. In experiment 1, 216 pigs (9.4 ± 1.6 kg initial BW) were housed in 27 pens of 8 pigs (four gilts and four barrows). In experiment 2, 144 pigs (8.9 ± 1.1 kg) were housed in 36 pens of 4 pigs (two gilts and two barrows). Pigs were offered three dietary choices: B. napus CM with SBM as reference (B. napus CM [SBM]), B. juncea CM with SBM as reference (B. juncea CM [SBM]), and B. juncea CM with B. napus CM as reference (B. juncea CM [B. napus CM]) in a replicated 3 × 3 Latin square. Diets were formulated to provide 2.4 Mcal NE/kg and 4.5 g standardized ileal digestible Lys/Mcal NE and were balanced using canola oil and crystalline AA. Each pair of diets was offered in two self-feeders per pen as mash (experiment1) or pellets (experiment 2) during three test-periods of 4-d, followed by a 3-d non-test period when a common diet was offered in both feeders. Feeders with different diets were rotated daily among pens during preference periods for both experiments, and feeder positions (right or left) were switched daily in experiment 2. Prior to the study and between periods, pigs were fed non-testdiets containing SBM (experiment 1) or without test feedstuffs (experiment 2). Overall in both experiments, pigs preferred (P < 0.001) SBM over B. napus and B. juncea CM diets, and preferred (P < 0.001) B. napus over B. juncea CM diet. Dietary choice did not affect (P > 0.05) growth performance in both experiments, except for greater G:F (P < 0.05) for pigs fed the B. juncea CM [B. napus CM] diets than pigs fed the B. napus CM [SBM] or B. juncea CM [SBM] diets in experiment 1. In conclusion, weaned pigs preferred SBM over CM diets when given a choice, and preferred B. napus over the B. juncea diet that contained more total glucosinolates especially gluconapin. Weaned pigs fed the B. juncea CM [B. napus CM] diets in the double-choice selection did not reduce feed intake, weight gain, and G:F compared to pigs fed the B. napus CM [SBM] or B. juncea CM [SBM] diets.


翻译:蒋辉    转自:猪营养国际论坛
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