Ndlovu Nomagugu, Erlwanger Kennedy H, Chivandi Eliton
Department of Biological and Environmental Science, Faculty of Natural Sciences, Walter Sisulu University, Mthatha, South Africa.
School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Vet Med Sci. 2025 Jan;11(1):e70141. doi: 10.1002/vms3.70141.
Use of synthetic feed additives in poultry production is associated with negative consumer health outcomes hence the need to make use of natural alternatives. We investigated the effect of fortifying Japanese quail pullet diets with Hibiscus sabdariffa calyces meal (HSCM) on egg production and egg quality. A standard Japanese quail layer diet was supplemented with HSCM at 0%, 5% and 10% (w/w) in Diets 1, 2 and 3, respectively. Ninety 5-week-old Japanese quail hens were randomly allocated to and fed the layer diets for 56 days. Feed intake, egg production, egg quality and the egg albumen and yolk proximate content and fatty acid profiles were determined. Dietary fortification with HSCM reduced feed intake (p < 0.001) but did not affect feed conversion ratio of the quail (p > 0.05). The meal reduced (p < 0.0001) the number of eggs laid but did not affect external and internal egg quality (p > 0.05). Dietary fortification with HSCM at 10% significantly reduced the egg fat content but increased linoleic acid and arachidonic acid (p < 0.05) content. Although H. sabdariffa calyces meal increased egg nutritional value, its use as a dietary supplement in laying hens may result in reduced productivity affecting profitability.
在家禽生产中使用合成饲料添加剂会对消费者健康产生负面影响，因此需要使用天然替代品。我们研究了用玫瑰茄萼片粉（HSCM）强化日本鹌鹑雏鸡日粮对产蛋性能和蛋品质的影响。在日粮1、2和3中，分别以0%、5%和10%（w/w）的比例向标准日本鹌鹑蛋鸡日粮中添加HSCM。将90只5周龄的日本鹌鹑母鸡随机分配并饲喂蛋鸡日粮56天。测定采食量、产蛋性能、蛋品质以及蛋清和蛋黄的近似成分和脂肪酸谱。用HSCM强化日粮会降低采食量（p < 0.001），但不影响鹌鹑的饲料转化率（p > 0.05）。该粉降低了产蛋数（p < 0.0001），但不影响蛋的外观和内部品质（p > 0.05）。日粮中添加10%的HSCM可显著降低蛋脂肪含量，但增加亚油酸和花生四烯酸含量（p < 0.05）。虽然玫瑰茄萼片粉提高了蛋的营养价值，但其作为蛋鸡日粮补充剂使用可能会导致生产性能下降，影响盈利能力。
