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Effects of dietary organic minerals, fish oil, and hydrolyzed collagen on growth performance and tibia characteristics of broiler chickens.
Poultry Science ( IF 4.4 ) Pub Date : 2019-12-01 , DOI: 10.3382/ps/pez427
B C Güz 1 , R Molenaar 1 , I C de Jong 2 , B Kemp 1 , H van den Brand 1 , M van Krimpen 2
Affiliation  

Nutrition is a crucial factor for growth and bone development in broiler chickens. Adjustments in dietary ingredients might affect bone development and consequently locomotion related problems. This study was designed to evaluate effects of dietary organic minerals (ORM), fish oil (FISH), and hydrolyzed collagen (COL) on growth performance and tibia characteristics of broiler chickens. A total of three hundred eighty four 1-day-old Ross 308 male broiler chickens were used in a complete randomized block design with 4 diet groups and 8 replicates per diet group. In the ORM diet, the inorganic macro and trace minerals were replaced by their organic varieties. In the FISH diet, palm oil and soybean oil were partly replaced by FISH. In the COL diet, soybean meal was partly replaced by COL. Results showed that the ORM and COL diet groups reached a higher body weight (BW) at 42 D of age than the FISH diet group, whereas the control group was in between. The feed conversion ratio between day 1 and 42 was lower in the ORM and COL diet groups than in both other diet groups. On day 28, 35, and 42, gait score (GS), Varus Valgus deformity, tibia length (TL), thickness, femoral and metatarsal head thickness (THT), mineral content (TMC), mineral density (TMD), breaking strength (TBS), stiffness (TSF), and energy to fracture (TEF) were measured (n = 3/replicate). The ORM diet group had higher TL at day 42, higher THT at day 28, higher TMC at day 42, higher TMD at day 28, 35, and 42, higher TBS at day 42, higher TSF at day 35 and 42, and higher TEF at day 42 compared to the FISH diet group, with the COL and control diet groups in between. It can be concluded that replacing dietary inorganic macro and trace minerals by their organic varieties seems to stimulate tibia dimensions, strength, and mineral content of broiler chickens. On the contrary, FISH appears to negatively affect tibia characteristics.

中文翻译:

膳食有机矿物质,鱼油和水解胶原蛋白对肉鸡生长性能和胫骨特性的影响。

营养是肉鸡生长和骨骼发育的关键因素。饮食成分的调整可能会影响骨骼发育,进而影响与运动有关的问题。这项研究旨在评估饮食有机矿物质(ORM),鱼油(FISH)和水解胶原蛋白(COL)对肉鸡生长性能和胫骨特征的影响。总共384只1天大的Ross 308雄性肉鸡用于完全随机区组设计,分为4个饮食组,每个饮食组重复8次。在ORM饮食中,无机的大量矿物质和微量矿物质被其有机品种所替代。在FISH饮食中,棕榈油和大豆油被FISH部分替代。在COL饮食中,豆粕部分被COL代替。结果显示,ORM和COL饮食组在42 D岁时的体重(BW)高于FISH饮食组,而对照组介于两者之间。在ORM和COL日粮组中,第1天和第42天之间的饲料转化率低于其他两个日粮组。在第28、35和42天,步态得分(GS),外翻内翻畸形,胫骨长度(TL),厚度,股骨和meta骨头的厚度(THT),矿物质含量(TMC),矿物质密度(TMD),断裂强度(TBS),刚度(TSF)和断裂能(TEF)进行了测量(n = 3 /重复)。ORM饮食组在第42天的TL较高,在第28天的THT较高,在第42天的TMC较高,在第28、35和42天的TMD较高,在第42天的TBS较高,在第35和42天的TSF较高,并且更高与FISH饮食组相比,第42天的TEF介于COL和对照组饮食之间。可以得出结论,用有机品种代替饮食中的无机大量和微量矿物质似乎可以刺激肉鸡的胫骨尺寸,强度和矿物质含量。相反,FISH似乎会对胫骨特征产生负面影响。
更新日期:2020-04-17
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