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首页> 外文期刊>Tropical Animal Health and Production >Lysine requirement for growing-finishing immunocastrated male pigs
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Lysine requirement for growing-finishing immunocastrated male pigs

机译：生长肥育免疫雄性猪的赖氨酸需求量

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Eighty boars (19.3 +/- 2.49 kg) were vaccinated twice (100 and 128 days of age) against gonadotropin releasing hormone (Vivax (TM) vaccine), for a randomised block design study aiming to evaluate five digestible lysine (DLys) level treatments, with three phase-feeding per treatments (9-8-7; 10-9-8; 11-10-9; 12-11-10 and 13-12-11 g/kg) during the growing-finishing phases (54-100, 100-128 and 128-155 days of age, respectively). Pigs were fed their respective diets ad libitum from 54 to 155 days and weighed at 100, 128 and 155 days. Pig loin (Longissimus dorsi) area, loin depth and backfat thickness were measured by ultrasound at 100 and 155 days. Hot carcass weight, meat quantity and meat yield were measured at slaughter. From 54 to 100 days (pre-immunocastration), DLys levels linearly improved pig feed conversion and loin area, the level of DLys for minimum feed conversion and maximum loin area was 13 g/kg. However, DLys levels had no effect on the performance of boars from 54 to 128 days (pre-immunocastration), nor on the performance and carcass parameters of immunocastrated male pigs between 54 and 155 days. A sequence of diets containing 9, 8 and 7 g/kg of DLys fed from 54 to 100, 100 to 128 and 128 to 155 days, respectively, meet the requirement of growing-finishing immunocastrated male pigs.
机译：对八十头公猪（19.3 +/- 2.49公斤）接种两次促性腺激素释放激素（Vivax（TM）疫苗）（分别在100和128天龄），以评估五种可消化赖氨酸（DLys）水平的治疗方法，在肥育阶段达到每个处理阶段的三阶段饲喂（9-8-7; 10-9-8; 11-10-9; 12-11-10和13-12-11 g / kg） -100天，100-128天和128-155天）。从54天到155天随意喂猪，分别在100、128和155天称重。在第100天和第155天通过超声测量猪腰（Longissimus dorsi）的面积，腰肉深度和后脂肪厚度。屠宰时测量measured体热重，肉量和肉产量。从54天到100天（免疫cast剂前），DLys水平线性改善了猪的饲料转化率和猪腰肉面积，最小饲料转化率和最大猪腰肉面积的DLys水平为13 g / kg。但是，DLys水平对54到128天（免疫cast割前）的公猪性能没有影响，也不影响54到155天之间免疫cast割的公猪的性能和car体参数。从54天到100天，100天到128天和128天到155天分别饲喂9、8和7 g / kg DLys的日粮顺序可以满足生长肥育免疫cast公猪的需求。

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