杂粕型饲粮添加复合酶制剂对樱桃谷肉鸭生产性能、消化酶活性及血清生化指标的影响

本试验旨在研究杂粕型饲粮添加不同复合酶制剂对樱桃谷肉鸭生产性能、消化酶活性及血清生化指标的影响.264只健康1日龄樱桃谷肉鸭随机分为3个处理,每个处理4个重复,每个重复22只鸭.1组饲喂玉米-杂粕型基础饲粮,2组在基础饲粮中添加酶1(由聚糖酶、甘露聚糖酶、葡聚糖酶组成)100 mg/kg,3组在基础饲粮中添加酶2(由聚...     

品种和生态因子对甜樱桃果实品质的影响

以不同生态区不同品种甜樱桃为试材,研究品种和生态因子对甜樱桃果实品质的影响。结果表明:不同品种甜樱桃果实单果重、可溶性固形物含量、可滴定酸含量和VC含量有极显著差异;生态因子对甜樱桃果实品质有显著影响,其中气候因子对甜樱桃果实品质综合影响程度为果实可滴定酸含量>可溶性固形物含量>果实单果重;土壤各因子和海拔高度对果实品质综合影响程度为果实单果重>可溶性固形物含量>可滴定酸含量。     

应用超声波技术快速预测羊背膘厚和眼肌面积的研究

在肉羊育种中,背膘厚和眼肌面积是重要的选择性状,为了能够对其进行活体预测,试验通过对3个羊品种（36头）屠宰前后的背膘厚和眼肌面积的估测和实测数据运用最小二乘法建立了用超声波活体测量技术预测宰后背膘厚、眼肌面积和屠宰重的预测模型,结果显示预测模型均达到显著水平（P＜0.05）。因此,可以在育种实践中应用。     

Perception of artificial conspecifics by bearded dragons (Pogona vitticeps)

Artificial animals are increasingly used as conspecific stimuli in animal behavior research. However, researchers often have an incomplete understanding of how the species under study perceives conspecifics, and, hence, which features are needed for a stimulus to be perceived appropriately. To investigate the features that bearded dragons (Pogona vitticeps) attend to, we measured their lateralized eye use when assessing a successive range of stimuli. These ranged through several stages of realism in artificial conspecifics, to see how features such as color, the presence of eyes, body shape and motion influence behavior. We found differences in lateralized eye use depending on the sex of the observing bearded dragon and the artificial conspecific, as well as the artificial conspecific's behavior. Therefore, this approach can inform the design of robotic animals that elicit biologically‐meaningful responses in live animals.     

Physico-chemical and antioxidant properties of cornelian cherry fruits (Cornus mas L.) grown in Turkey

Cornus mas L. is a naturally growing dogwood species in Anatolia. In present study, physical, chemical and antioxidant properties of cornelian cherry fruits were studied. The fruit weight was in the range of 0.39–1.03 g, fruit length 14.24–22.20 mm, fruit width 9.59–13.21 mm, flesh/seed ratio 1.34 to 6.72. Hunter L values of the samples ranged between 10.82 and 19.69, and a value was between +6.25 and +15.59, and b value was between +3.46 and +6.64. In addition to the levels of dry matter, soluble solids, pH, total acidity, total sugar content, reduced sugar content, unreduced sugar content, ascorbic acid, total anthocyanin and total phenolics were within the range of 15.88–28.19%, 12.50–21.00%, 3.11–3.53, 1.10–2.53%, 76.80–154.00 g kg⁻¹, 52.80–120.00 g kg⁻¹, 0.00–32.30 g kg⁻¹, 0.16–0.88 mg g⁻¹, 1.12–2.92 mg g⁻¹ and 2.81–5.79 mg g⁻¹, respectively. On the other hand, ferric reducing antioxidant power (FRAP) and EC₅₀ values were between 16.21 mmol g⁻¹ and 94.43 mmol g⁻¹, 0.29–0.69 mg mL⁻¹. Anthocyanin extracts of the fruits were analysed by high-performance liquid chromatography (HPLC) with UV–vis detection. Pelargonidin 3-glucoside was the main pigment found in cornelian cherry fruits.