Janocha Alina, Milczarek Anna, Kosmalski Maciej, Gajownik-Mućka Paulina, Radzikowski Daniel
Institute of Animal Science and Fisheries, Faculty of Agrobioengineering and Animal Husbandry, Siedlce University of Natural Sciences and Humanities, Bolesława Prusa 14, 08-110 Siedlce, Poland.
Animals (Basel). 2022 Dec 8;12(24):3464. doi: 10.3390/ani12243464.
In order to increase growth performance and carcass composition, including meat quality, as demanded by modern customers, alternative feed additives are sought after as a result of the withdrawal of antibiotics employed as growth promoters in poultry feeding. Therefore, we conducted a study to see how effective three feed additives added to the diets and water of turkey hens were. The experiment consisted of 200 Big 6 turkey hens divided into two equinumerous groups (C and E), with five subgroups in each. The 14-week-long growth performance study comprised five feeding periods. Both groups of birds were fed complete feed rations with mineral and vitamin supplements. The factor differentiating the groups were effective microorganisms and Humokarbowit added to the birds' diets and garlic extract added to the drinking water in the experimental group (E) only. It was demonstrated that the included feed additives in the diets and water of turkey hens significantly increased (by 10%) the FBW and decreased (by 14%) the FCR throughout the rearing period. Birds from the E group scored significantly higher (by 3.6%) on the dressing percentage, and their muscularity and fattening grade were improved. Turkey fed rations containing the evaluated feed additives had a smaller share of the gastrointestinal tract in the body weight and a shorter duodenum and caecum ( ≤ 0.05). The muscles of turkey hens from group E featured a lower pH and were of lighter colour ( ≤ 0.05). To sum up, the use of effective microorganisms and Humokarbowit in the diets and garlic extract in the drinking water of turkey hens should be recommended in view of improved growth performance and carcass composition.
为了按照现代消费者的要求提高生长性能和胴体组成，包括肉质，由于家禽饲养中用作生长促进剂的抗生素被停用，人们开始寻找替代饲料添加剂。因此，我们开展了一项研究，以观察添加到火鸡日粮和饮水中的三种饲料添加剂的效果如何。实验由200只大6火鸡组成，分为两个数量相等的组（C组和E组），每组有五个亚组。为期14周的生长性能研究包括五个饲养期。两组火鸡都饲喂含有矿物质和维生素补充剂的全价饲料。区分两组的因素是，实验组（E组）在火鸡日粮中添加了有效微生物和腐殖酸钾，并且仅在饮水中添加了大蒜提取物。结果表明，在整个饲养期内，添加到火鸡日粮和饮水中的饲料添加剂显著提高了（10%）火鸡的末重，降低了（14%）料肉比。E组火鸡的屠宰率显著更高（3.6%），肌肉丰满度和育肥等级得到改善。饲喂含有评估饲料添加剂日粮的火鸡，其胃肠道占体重的比例较小，十二指肠和盲肠较短（≤0.05）。E组火鸡的肌肉pH值较低，颜色较浅（≤0.05）。综上所述，鉴于生长性能和胴体组成得到改善，建议在火鸡日粮中使用有效微生物和腐殖酸钾，并在饮水中添加大蒜提取物。
