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本研究旨在分析云南热带雨林地区野杂猪的胴体品质与肉质特性,探讨野杂猪的开发利用价值.选用240头猪,分为农户饲养的滇南小耳猪(简称:X)、西双版纳野猪×滇南小耳猪F1(YX)、西双版纳野猪×野猪滇南小耳猪F1(YYX)和西双版纳野猪×野猪杜洛克F1(YYD)4个组,每组3个重复,每个重复20头.在达60 kg屠宰体重时,每个重复选择3头(共12头)屠宰并进行胴体品质和肉质特性的分析.结果表明,各组之间肌肉主要营养成分没有显著差异(P>0.05).YX组、YYX组和YYD组的肉色评分显著高于X组(P<0.05);眼肌面积、后腿比例、瘦肉率和骨骼比率极显著高于X组(P<0.01).YYX组、YX组和YYD组的不饱和脂肪酸含量分别为51.16%、55.05%、56.80%,低于X组的57.58%;YYX组、YYD组和YX组的17种氨基酸含量依次是17.82%、17.70%、14.32%,低于X组的23.98%.由结果可知,西双版纳野杂猪的肌肉主要营养指标优良,且瘦肉率高、肉色好、加工出品率高,尤其是YYX组肉质特性表现最好,具有开发生产优质保健肉的市场前景. 相似文献
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野猪杂种猪肌肉营养特性的分析 总被引：9，自引：0，他引：9
此文对含有不同子午岭野猪血缘的野杂种猪的肌肉营养成分进行了分析与评价。结果表明,野杂种猪蛋白质含量在21.0%以上,肌内脂肪含量(>3.0%)与其杂交母本有关。野杂种猪肌肉具有较丰富的氨基酸总量、鲜味氨基酸和不饱和脂肪酸。含有1/2子午岭野猪血缘的野杂种猪F1、F1×F1的鲜味氨基酸和不饱和脂肪酸含量较高,分别为35.88%、49.42%和33.82%、48.05%;其亚油酸含量分别为5.22%和7.06%。鲜味氨基酸和不饱和脂肪酸含量其次是含有1/4子午岭野猪血缘的野杂种猪F1×B、F1×Y,约克夏猪最低。 相似文献
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通过观察、测量和生物统计分析,比较了成年滇南小耳猪头骨15个和华南野猪头骨5个,测定重量、尺度等39项。滇南小耳猪与华南野猪在头骨重量间差别不明显;头骨的宽度、高度、颜面角度各项尺度明显大于华南野猪,而长度、额鼻角等项均小于华南野猪,野猪的头更长、额鼻面更平直;二者泪骨形态相似,呈方形或菱形,依泪骨形态判断,滇南小耳猪由华南野猪进化、驯养形成的可能性较大。 相似文献
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西双版纳--"勐巴拉娜西"神奇美丽、快乐和谐的地方,素有"动物王国"和"植物王国"之称,生物资源十分丰富.云南省西双版纳傣族自治州(以下简称西双版纳)发展畜牧业具有得天独厚的自然条件和区位优势,最突出的是有非常丰富的畜禽品种资源,云南省纳入全国畜禽遗传资源的品种有7个,而西双版纳就占3个,即茶花鸡、滇南小耳猪、西双版纳斗鸡. 相似文献
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西双版纳野猪与家猪杂交后代生产性能测定 总被引：1，自引：1，他引：0
本试验测定的西双版纳野猪来自于我国云南西双版纳热带原始森林保护区内,属华南野猪〔1〕。利用野猪与家猪杂交生产野杂种猪的文献最早见于日本1950年6月〔2〕,翟永功等〔2〕(2001)、梁子安等〔3〕(2002)、陈国顺等〔4〕(2003,2004)、文启荣等〔5〕(2005)等研究显示,野杂种猪肉 相似文献
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含不同比例野猪血缘的杂种猪生长肥育性能和肉质特性的研究 总被引：5，自引：0，他引：5
选含不同比例子午岭野猪血缘的野杂种猪32头(F1,F1×B,F1×Y,F1×F1)和八眉猪、约克夏猪各8头,采用单因子试验设计,在同一营养水平下,研究含不同子午岭野猪血缘或杂交组合的野杂种猪与八眉猪、约克夏猪的生长肥育性能和肉质特性。结果表明,F1×B组的料肉比显著高于约克夏猪(p<0.05),随野猪血缘比例的升高,日增重、胴体斜长和饲料转化率下降,皮厚增加、背膘变薄。野杂种猪的瘦肉率介于八眉猪(55.64%)和约克夏猪(63.26%)之间。F1,F1×B组相比于F1×Y、Y组,肉色评分高(P<0.05),八眉猪大理石纹评分高于Y和F1(P<0.05),肌内脂肪含量显著高于F1、F1×F1、F1×Y和F1×B(P<0.05);其它常规营养成分、肌纤维直径各组差异不显著(P>0.05),品味鉴定评分,F1×B组相对较高,嫩度剪切力值低于除八眉猪以外的其他组合,其他各项指标总体来看比较理想。 相似文献
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云南3个地方猪种猪肉的营养价值比较分析 总被引：2，自引：0，他引：2
为进一步利用云南地方猪种资源和生产优质猪肉,选用高黎贡山猪、撒坝猪、滇南小耳猪3个云南地方猪种,测定其背最长肌的水分、粗蛋白、灰分、粗脂肪、脂肪酸、胆固醇、氨基酸含量并进行比较分析。结果显示,高黎贡山猪脂肪含量较撒坝猪、滇南小耳猪高(P0. 05),而撒坝猪粗蛋白含量最高(P0. 01)。3个猪种各种氨基酸含量依次为撒坝猪、滇南小耳猪、高黎贡山猪,且3个猪种之间差异性极显著(P0. 01)。撒坝猪胆固醇含量最低,极显著低于高黎贡山猪(P 0. 01),低于滇南小耳猪(P0. 05)。结果表明,高黎贡山猪猪肉营养成分丰富,脂肪品质好;撒坝猪猪肉味鲜,胆固醇含量较低。 相似文献
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Evidence for the non-involvement of the uterus in the lifespan of the corpus luteum in the cyclic dog 总被引：1，自引：0，他引：1
Progesterone levels in peripheral blood of dogs were analysed during the cycle in which hysterectomy (n = 5) or sham surgery (n = 3) was performed as well as during the cycle of dogs (n = 5) hysterectomized at least one year prior to this study; the data were compared with the findings in control dogs (n = 3). The averages of the duration of the luteal period observed in the three experimental groups were not significantly different from those of control dogs. Immediately after surgery, the progesterone level decreased from 25 to 50% of the presurgical level, but returned to presurgical level in about four days. Prolactin levels were elevated for about 30 h after surgery. Nevertheless, the averages of the mean prolactin levels for each animal during the luteal period of the experimental groups were not significantly different from those of control dogs. It is concluded that in the dog, the uterus is not involved in the lifespan of the cyclic corpus luteum. 相似文献
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Meschan EM Peham C Schobesberger H Licka TF 《Veterinary journal (London, England : 1997)》2007,173(3):578-584
As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks. 相似文献
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嗅源是军犬嗅觉作业训练的依据.军犬鉴别中嗅源能力的培养在整个鉴别训练中占有重要地位,关系到鉴别训练的成败和鉴别能力的提高.所以,军犬在嗅认嗅源时必须按照训犬员的指令充分、细致地感受嗅源气味,并且对嗅源气味产生兴奋反应.如何培养军犬充分嗅认嗅源以及及时解决嗅认过程中出现的问题,成为我们进行鉴别训练的关键.…… 相似文献
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