PDF(Pubmed)
Abstract：
OBJECTIVE: An experiment was conducted to evaluate the effects of partially replacing soybean meal (SBM) with sunflower meal (SFM) with added exogenous multienzymes (MEs) on various biological parameters in broilers.
METHODS: One week-old, 400 broiler chicks were randomly divided into four treatments (control, 3SFM, 6SFM, and 9SFM) with 5 replicates/treatment (20 chicks/replicate). Control diet was without SFM and MEs, while diets of 3SFM, 6SFM, and 9SFM treatments were prepared by replacing SBM with SFM at levels of 3%, 6%, and 9%, respectively, and were supplemented with MEs (100 mg/kg). Feeding trial was divided into grower (8 to 21 day) and finisher phases (22 to 35 day). External marker method was used to measure the nutrient digestibility. At the end of trial, twenty birds (one birds per replicate) with similar body weight were slaughtered for samples collection.
RESULTS: No significant effect of dietary treatments was found on all parameters of growth performance and carcass characteristics, except relative weight of bursa. Weight (25.0 g) and length (15.80 cm) of duodenum were significantly (p<0.05) higher in 3SFM than control. Lowest (p<0.05) villus height/crypt depth ratio was found in 3SFM and 9SFM than control. Most of meat quality parameters remained unaffected, however, highest pH of breast meat (6.16) and thigh meat (6.44) were observed in 9SFM and 3SFM, respectively. Lowest (p<0.05) cook loss of thigh meat was found in 6SFM (31.76%). Ileal digestibility of crude protein was significantly (p<0.05) higher in 3SFM (72.35%) than control (69.46%). In addition, amylase (16.87 U/mg) and protease (85.18 U/mg) activities were significantly (p<0.05) higher in 3SFM than control. However, cecal microbial count remained unaffected.
CONCLUSIONS: Partial replacement (up to 9%) of SBM with SFM, with added MEs can help to improve the nutrient digestibility, intestinal morphology, and digestive enzyme activities without affecting cecal microbial count and growth performance in broilers.
METHODS: One week-old, 400 broiler chicks were randomly divided into four treatments (control, 3SFM, 6SFM, and 9SFM) with 5 replicates/treatment (20 chicks/replicate). Control diet was without SFM and MEs, while diets of 3SFM, 6SFM, and 9SFM treatments were prepared by replacing SBM with SFM at levels of 3%, 6%, and 9%, respectively, and were supplemented with MEs (100 mg/kg). Feeding trial was divided into grower (8 to 21 day) and finisher phases (22 to 35 day). External marker method was used to measure the nutrient digestibility. At the end of trial, twenty birds (one birds per replicate) with similar body weight were slaughtered for samples collection.
RESULTS: No significant effect of dietary treatments was found on all parameters of growth performance and carcass characteristics, except relative weight of bursa. Weight (25.0 g) and length (15.80 cm) of duodenum were significantly (p<0.05) higher in 3SFM than control. Lowest (p<0.05) villus height/crypt depth ratio was found in 3SFM and 9SFM than control. Most of meat quality parameters remained unaffected, however, highest pH of breast meat (6.16) and thigh meat (6.44) were observed in 9SFM and 3SFM, respectively. Lowest (p<0.05) cook loss of thigh meat was found in 6SFM (31.76%). Ileal digestibility of crude protein was significantly (p<0.05) higher in 3SFM (72.35%) than control (69.46%). In addition, amylase (16.87 U/mg) and protease (85.18 U/mg) activities were significantly (p<0.05) higher in 3SFM than control. However, cecal microbial count remained unaffected.
CONCLUSIONS: Partial replacement (up to 9%) of SBM with SFM, with added MEs can help to improve the nutrient digestibility, intestinal morphology, and digestive enzyme activities without affecting cecal microbial count and growth performance in broilers.
摘要：
目的：进行了一项实验，以评估添加外源多酶（MEs）的向日葵粉（SFM）部分替代豆粕（SBM）对肉鸡各种生物学参数的影响。
方法：一周前，将400只肉鸡随机分为四个处理(对照，3SFM,6SFM,和9SFM），重复5次/处理（20只小鸡/重复）。对照饮食没有SFM和MEs，而3SFM的饮食，6SFM,和9SFM处理是通过用3％的SFM代替SBM来制备的，6%,9%,分别,并补充了ME（100mg/kg）。饲喂试验分为种植期（8至21天）和整理期（22至35天）。使用外部标记方法测量养分消化率。审判结束时,屠宰体重相似的二十只鸟(每只一只鸟)进行样本收集。
结果：未发现日粮处理对生长性能和car体特性的所有参数的显着影响，除了法氏囊的相对重量。3SFM的十二指肠重量（25.0g）和长度（15.80cm）显着（p<0.05）高于对照组。与对照相比,在3SFM和9SFM中发现最低(p<0.05)绒毛高度/隐窝深度比。大多数肉类品质参数未受影响，然而,在9SFM和3SFM中观察到胸肉（6.16）和大腿肉（6.44）的最高pH值，分别。在6SFM中发现大腿肉的烹饪损失最低（p<0.05）（31.76％）。3SFM中粗蛋白的回肠消化率（72.35％）显着（p<0.05）高于对照组（69.46％）。此外,3SFM的淀粉酶（16.87U/mg）和蛋白酶（85.18U/mg）活性显着高于对照组（p<0.05）。然而,盲肠微生物计数未受影响。
结论：用SFM部分替代（高达9%）SBM，添加MEs可以帮助提高营养素的消化率，肠道形态学,和消化酶活性不影响盲肠微生物计数和肉仔鸡生长性能。
方法：一周前，将400只肉鸡随机分为四个处理(对照，3SFM,6SFM,和9SFM），重复5次/处理（20只小鸡/重复）。对照饮食没有SFM和MEs，而3SFM的饮食，6SFM,和9SFM处理是通过用3％的SFM代替SBM来制备的，6%,9%,分别,并补充了ME（100mg/kg）。饲喂试验分为种植期（8至21天）和整理期（22至35天）。使用外部标记方法测量养分消化率。审判结束时,屠宰体重相似的二十只鸟(每只一只鸟)进行样本收集。
结果：未发现日粮处理对生长性能和car体特性的所有参数的显着影响，除了法氏囊的相对重量。3SFM的十二指肠重量（25.0g）和长度（15.80cm）显着（p<0.05）高于对照组。与对照相比,在3SFM和9SFM中发现最低(p<0.05)绒毛高度/隐窝深度比。大多数肉类品质参数未受影响，然而,在9SFM和3SFM中观察到胸肉（6.16）和大腿肉（6.44）的最高pH值，分别。在6SFM中发现大腿肉的烹饪损失最低（p<0.05）（31.76％）。3SFM中粗蛋白的回肠消化率（72.35％）显着（p<0.05）高于对照组（69.46％）。此外,3SFM的淀粉酶（16.87U/mg）和蛋白酶（85.18U/mg）活性显着高于对照组（p<0.05）。然而,盲肠微生物计数未受影响。
结论：用SFM部分替代（高达9%）SBM，添加MEs可以帮助提高营养素的消化率，肠道形态学,和消化酶活性不影响盲肠微生物计数和肉仔鸡生长性能。
