Chivandi Eliton, Mdoda Bayanda, Lembede Busisani Wiseman
University of the Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193, South Africa.
Vet Anim Sci. 2020 Jun 20;10:100128. doi: 10.1016/j.vas.2020.100128. eCollection 2020 Dec.
is widely distributed in sub-Saharan Africa and its seed meal (MZSM) has a higher energy content than maize meal (MM). We evaluated the potential of MZSM to substitute MM in Japanese quail finisher diets by determining its effects on growth performance, feed intake (FI) and feed utilisation efficiency, abdominal fat deposition and carcass yield. In a completely randomised design thirty-two 5-weeks old male Japanese quail were allocated to four diets wherein MZSM replaced MM at 0%, 12.5%, 25% and 37.5% (gross energy basis) and fed for 4 weeks. Initial and weekly body weight, final body weight (FBW) and daily FI were measured. Body weight gain (BWG), average daily gain (ADG) and feed conversion ratio (FRC) were computed. At the end of the trial, following a 4-hour fast, the quail were weighed then humanely slaughtered and dressed. Carcass weight and dressing percent were determined. Abdominal fat was weighed. MZSM did not affect (>0.05) the quail's FBW, BWG, ADG, FCR, carcass weight and dressing percent. MZSM at 37.5% inclusion decreased (<0.0001) FI in weeks 1 and 2 and total FI of the quail. Dietary seed meal decreased (<0.0001) abdominal fat mass. Use of MZSM would be most economic at 37.5% inclusion because despite decreasing total FI, growth performance was similar to control. seed meal can be used as a dietary energy source in Japanese quail finisher diets without compromising growth performance, feed utilisation efficiency and carcass yield.
广泛分布于撒哈拉以南非洲地区,其籽粕(MZSM)的能量含量高于玉米粉(MM)。我们通过测定MZSM对日本鹌鹑育肥期日粮中MM的替代潜力,评估其对生长性能、采食量(FI)和饲料利用效率、腹部脂肪沉积及胴体产量的影响。在完全随机设计中,将32只5周龄雄性日本鹌鹑分配到四种日粮中,其中MZSM以0%、12.5%、25%和37.5%(基于总能)替代MM,并饲喂4周。测量初始体重和每周体重、终末体重(FBW)及每日FI。计算体重增加(BWG)、平均日增重(ADG)和饲料转化率(FRC)。试验结束时,禁食4小时后对鹌鹑称重,然后进行人道屠宰和去内脏处理。测定胴体重和屠宰率。称量腹部脂肪重量。MZSM对鹌鹑的FBW、BWG、ADG、FCR、胴体重和屠宰率无显著影响(>0.05)。日粮中添加37.5%的MZSM可降低(<0.0001)第1周和第2周的FI以及鹌鹑的总FI。日粮中添加籽粕可降低(<0.0001)腹部脂肪量。日粮中添加37.5%的MZSM最经济,因为尽管降低了总FI,但生长性能与对照组相似。籽粕可作为日本鹌鹑育肥期日粮的能量来源,而不影响生长性能、饲料利用效率和胴体产量。