山地草甸草原围栏草场短期放牧育肥哈萨克羊增重效果试验

选择90只不同年龄、性别的哈萨克羊放牧,按性别、年龄组成试验和对照组,进行不同草地上短期放牧育肥试验。结果,在围栏草场上放牧育肥的试验组中1.5岁羯羊、成年羯羊和成年母羊每只增重比对照组分别提高3.8g、4.64g和3.4kg,平均日增重55g、74g、62g,比对照组分别提高119.6%、176%和177%。试验组不同年龄、性别组与相应对照组两者之间均差异极显著(P0.01)。试验组比对照组1.5岁羯羊、成年羯羊和成年母羊每只分别多增收28.4元、37.12元和37.2元,试验组45只哈萨克羊共多增收1 390.8元。结果表明,围栏草场短期放牧育肥哈萨克羊能提高日增重,缩短养羊周期,增加收入。     

高寒围栏草地短期放牧育肥藏羊增重效果

选择 90只不同性别、年龄的放牧藏羊 ,按性别、年龄组成试验和对照组 ,进行不同草地上短期放牧育肥试验。结果 ,在围栏草上放牧育肥的试验组 1.5岁羯羊、成年羯羊和成年母羊每只增重比对照组分别提高 3.4 ,3.8和3.4kg ,平均日增重 85 ,95和 85g,比对照组分别提高 2 15 .5 % ,2 0 0 %和 188%。试验组不同性别、年龄组与相应对照组两者之间均差异极显著 (P <0 .0 1)。试验组比对照 1.5岁羯羊 ,成年羯羊和成年母羊每只分别另增收 2 5 .5 ,2 8.5和 2 5 .5 0元 ,试验组 4 5 0藏羊共增收 1192 .5 0元。结果表明 ,围栏草地短期放牧育肥藏羊能提高日增重 ,缩短养羊周期 ,增加收入。     

三江源生态移民区羔羊秋季放牧补饲精料育肥试验研究

三江源生态移民区对藏系羔羊在秋季进行放牧加补饲精料补充料的短期育肥试验.试验结果表明,11～12月龄平均体重和日增重分别达到29.79 kg和187.56 g,较对照组提高4.66 kg和103.56 g(P＜0.01),增重潜力较大;胴体重达到12.75 kg,比对照组提高2.73 kg(P＜0.01);屠宰率达到43.46%,提高3.78个百分点;每只羊多收入41.70元.季节性规模化羔羊肉的生产,有利于草地植被的恢复和草地生态环境的改善.     

高寒围栏草地短期放牧育肥牦牛增重试验

选择 40头成年阉牦牛 ,( 2 0头为试验组、2 0头为对照组 ) ,进行围栏草地上短期放牧育肥试验。结果 ,在围栏草地上放牧育肥的试验组阉牦牛 ,试验组每头牦牛的总增重比对照组提高 3 .3 1kg ,平均日增重 83g ,提高 44 % ,(P <0 .0 1)。试验组比对照组牦牛每头分别增收 2 6.48元     

山羊补饲育肥效果好

选择 5～ 6月龄本地去势公羊 16只 ,平均体重 2 0kg左右。随机分为对照、试验两个组 ,每组 8只 ,放牧饲养 ,条件相同。试验组每天每只羊补料 2 5 0g ,对照组只放牧不补料。经 75天饲养 ,试验组只平均增重 11 41± 0 6 3kg,日增重平均 15 2 1± 8 3g;对照组只平均增重 6 3 8± 0 .5 7kg ,平均日增重 85± 7.6g ,差异极显著。扣除成本 ,试验组比对照组平均每只羊多增收 3 2 47元。     

甘加型藏羊羔羊育肥试验

进行了藏羊羔羊的育肥试验结果表明:甘加羊羔羊在秋冬季放牧适量补饲精料,自由采食牧草,短期育肥,8月龄平均体重和日增重分别达到36.57 kg和242 g(P<0.01),较对照组提高4.6 kg和97.00 g(P<0.01),体高、体长、胸围、管围和尻宽分别比对照组提高2.31 cm,2.88 cm,2.34 cm,0.09 cm和0.7 cm,增重和生长发育潜力较大;胴体重和屠宰率达到17.93 kg和48.64%,分别比对照组提高5.28 kg和17.04%(P<0.05),产肉性能较好,每只羊多收入59.53元。     

青海省贵南县高寒牧区枯草期欧拉型藏羊羔羊补饲育肥试验研究

对青海省贵南县欧拉型藏羊羔羊在牧草枯黄期进行了补饲育肥效果试验。结果表明,牧草枯黄期羔羊放牧加补饲精料颗粒料,自由采食,短期育肥60d,11月龄平均体重和日增重分别达到40．58kg和71．83g（P〈0．01）,较对照组提高9．41蚝和109．83g（P〈O．01）,增重效果非常明显;胴体重和屠宰率达到17．71kg和43．55％,分别比对照组提高5．69kg和5．09％（P〈0．05）,每只羊多收入85．80元,经济效益十分显著。     

高寒牧区牧草枯黄期欧拉型藏羊羔羊补饲育肥试验

对高寒牧区牧草枯黄期欧拉型藏羊羔羊进行了补饲育肥效果的试验.结果表明,牧草枯黄期欧拉型藏羊羔羊放牧加补饲精料颗粒料,自由采食,短期育肥50d,10月龄平均体重和日增重分别达到35.43 kg和114.4 g(P<0.01),较对照组提高5.51 kg和110.2 g(P<0.01),具有一定的增重潜力;胴体重、净肉重和屠宰率达到15.08 kg、11.52 kg和43.71%,分别比对照组提高3.08 kg、3.02 kg和4.22%(P<0.05),每只羊多收入36.35元,经济效益显著.     

“增肉剂”新技术在肉牛育肥中的应用研究

本试验选用１１９头西杂，秦杂和本地牛，试验组和对照组分别为７６头和４３头，研究皮下埋植“畜大壮”对役用牛，不同品种牛，强度育肥牛和枯草期放牧牛的育肥效果，以及“玉米赤霉 ”畜大壮“的增重效果，并对增肉剂育肥的经济效益进行了简要分析。为期４年的试验结果表明，“在壮”埋植组的相对增重比“玉米赤霉醇”埋植组高７．０３ｋｇ，埋植“畜大壮”的西杂，秦杂和本地牛的平均增重分别为５１．４ｋｇ，４２．９ｋｇ和４０     

山羊不同补充料的补饲效果试验

把100日龄、体重约9kg的60只山羊随机分成3组,对照组只放牧不补饲,试验Ⅰ组放牧后每只每天补饲100g玉米粉、试验Ⅱ组放牧后每只每天补饲100g精料补充料,其他饲养管理完全相同,正试期90d。结果表明,试验Ⅱ组、试验Ⅰ组及对照组试验期内每只羊平均日增重分别为109g、91g和72g,只均收益分别为207.4元、180.4元和155.5元。经方差分析,试验Ⅱ组的末重、增重、日增重与试验Ⅰ组比较均为显著(P0.05),与对照组比较均为极显著(P0.01),试验Ⅰ组的末重、增重、日增重与对照组比较均为显著(P0.05)。     

天农肥育牛用添加剂饲喂肉牛试验

选择年龄２～３岁，体重３００～４００千克的夏洛来杂公牛，西门塔尔杂交牛及黑白花公牛等品种牛共２０头，用天津农学院研制的“天农肥育牛用添加剂”进行了肥育试验，结果表明：试验组牛平均日增重１．２８２千克，对照组牛为１．０１２千克，试验组比对照组牛平均头日增重多０．２７千克，经ｔ经验两组牛日增重差异显著（Ｐ〈０．０５），经济收益比对照组头日净协１．９３元。     

高蛋白料精等量替代鱼粉饲喂肥育猪对比试验

应用高蛋白料精等量替代鱼粉饲喂肥育猪 ,其结果在 42d试验期内高蛋白料精组头均增重 19.0 6kg ,比鱼粉组多增重 2 .12kg ,增重率提高 12 .5 2 %,头均多增收益 2 1.2 1元 ,差异显著 (P <0 .0 5 )。     

西门塔尔牛BVD预防和治疗试验

肉牛的呼吸道疾病(BVD)多因运输应激而引起的一种顽固性疾病,常因临床治疗效果不佳,饲养成本增加。为降低本病给牧场造成 损失,自2020 年03 月26 日起,针对华润集团开鲁隔离场 牧场购自伊胡塔交易市场的西门塔尔品种架子牛,使用德国勃林格公司育肥牛到场操作流程方案进行应激处理并跟踪各项数据,与单纯使用勃林格公司驱虫药害获灭做对比评估,通过药物成本、死淘情况、增重指标的对比来评估方案优劣及成本核算分析,结果显示：(1)同样品种的西门塔尔育肥牛,在采购进入育肥场前后,进行不同应激处理方案,相比较只做害获灭+FMD 疫苗处理的牛群,使用专克灵+害获灭+FMD 疫苗处理的牛群,平均每头牛的日增重差别可以达到0.3kg/d,根据目前市场行情条件下,育肥牛销售约32 元/kg 的价格,在入场30 日内,平均每头牛可以多获得239.6 元的更多增重育肥收入;(2)在入场后使用专克灵预防BRD,配合害获灭驱虫,相比较入场后只做驱虫处理,能获得更低的BRD 发病率(低28.7%),发病牛更短的治疗天数(少0.5 d),更佳的平均日增重(多300 g),能够带来更好的增重收益;(3)实验组与对照组差别为0.3kg即平均日增重差别300g 。该数据可以直观的说明,入场时,是否全群专克灵处理牛群,预防BRD,对于后续日增重的影响,差异极其明显。本试验为华润集团隔离场领导及牧场技术人员参考。     

The effect of chronic non-progressive pneumonia on weight gain of pasturefed lambs

The liveweight gains and carcass weights of 40 lambs grazed under pastoral conditions were compared with those of a similar group with chronic non-progressive pneumonia which had been induced by intranasal inoculation of an aerosol of homogenised pneumonic lung at about 120 days of age. Half the lambs from each group were killed 30 days post-inoculation following rotational grazing on high quality pasture. At this time the pneumonic lambs had a mean liveweight gain of 1.74 kg less than the controls. The remainder were slaughtered at 60 days, when drier conditions prevailed, by which time the difference in mean liveweight had increased to 2.19 kg. During the second period, four of the severely affected lambs lost weight. A significant linear relationship was found between liveweight gain and the extent of the pneumonic lesions which indicated that a reduction of nearly 1 kg/month could be expected for every 10% of the lung surface area affected. Carcass weights were reduced by a mean of 1.5 kg over the 60-day period, 1.39 kg of which occurred in the first 30 days.     

The effect of chronic non-progressive pneumonia on weight gain of pasture-fed lambs

The liveweight gains and carcass weights of 40 lambs grazed under pastoral conditions were compared with those of a similar group with chronic non-progressive pneumonia which had been induced by intranasal inoculation of an aerosol of homogenised pneumonic lung at about 120 days of age. Half the lambs from each group were killed 30 days post-inoculation following rotational grazing on high quality pasture. At this time the pneumonic lambs had a mean liveweight gain of 1.74 kg less than the controls. The remainder were slaughtered at 60 days, when drier conditions prevailed, by which time the difference in mean liveweight had increased to 2.19 kg. During the second period, four of the severely affected lambs lost weight. A significant linear relationship was found between liveweight gain and the extent of the pneumonic lesions which indicated that a reduction of nearly 1 kg/month could be expected for every 10% of the lung surface area affected. Carcass weights were reduced by a mean of 1.5 kg over the 60-day period, 1.39 kg of which occurred in the first 30 days.     

普瑞纳3136号饲料育肥藏系羯羊效果分析

将40只1岁龄青海藏系羯羊分为两组,通过饲喂试验对比普瑞纳育肥羊饲料与青海牧区当地自配料育肥效果,以研究两种精饲料对藏系羊生长性能及效益的影响.试验结果表明：对两组藏系羊同期进行60 d补饲,自配料组初始体重21.97＆#177;0.78 kg,结束体重35.20＆#177;1.49 kg,平均日增重220.17＆#177;13.24 g;普瑞纳饲料组初始体重21.89＆#177;0.91 kg,结束体重40.16＆#177;1.86 kg,平均日增重305.00＆#177;15.92 g.经样本平均值差异性显著性分析,两组初始体重差异不显著（p＞0.05）,而结束体重与期间平均日增重普瑞纳饲料组极显著高于自配料组（p＜0.01）.从效益上分析,普瑞纳饲料组每只羊比自配料组多收入98.68元.     

不同饲养管理方式对肉牛增重效果的研究

１９９５年９－１２月在贵州省庆寨县，用２４头试验牛进行了不同饲养管理方式对肉牛增重效果的试验，并对肉牛的饲料转化率和增重率以及经济效益进行了分析，试验结果表明：全舍饲氨化秸秆结合少量精料组与半舍饲结合放牧组育肥效果显著，经济效益最好。     

Studies on the performance-related lysine requirement in fattening pigs. 1. Influence of energy and aminoacid intake on fattening

A total of 110 barrows fed varying levels of energy and amino acids in 8 treatments, were tested. The weight gains per fattening day and energy expenditure were found to be mainly determined by energy intake. Up to a liveweight of 100 kg both low and high levels of amino acid supply produced the same fattening performance results as amino acid supply to standard. In the 100-120 kg liveweight range, the animals fed higher levels of protein proved slightly superior. As to energy expenditure, animals subjected to restricted feeding up to 70 kg liveweight and fed full rations later, consumed 2.22 kEFs (2.22 kilo energetic feed equivalents/swine) per kg gain and proved significantly superior to those animals that were very intensively fed at the beginning and put to restricted feeding beyond 70 kg liveweight (2.53 kEFs per kg gain) as well as to those receiving high levels of energy all the time (2.39 kEFs/kg gain). In the latter case, 23 g of lysine were required per kg gain.     

微贮玉米秸肥育秦杂牛的效果对比试验

随机将２￣３岁未去势秦杂公牛２６头分为两组,在精料相同情况下,在３９天内分别饲喂以风干玉米秸（对照组）和微贮玉米秸,观察微贮玉米秸对秦杂牛的育肥效果。试验结果：微贮组与风干组头平均日增重分别为１１４４ｇ和９０２ｇ差异极显著（ｐ〈０．０１）;微贮组牛每增重１ｋｇ比风干组少耗精料１．１４ｋｇ,降低成本１．０８元;饲喂微贮玉米秸较饲喂风干玉米秸平均每头牛可增加收入１０９．５１元。结果表明：利用微贮玉米秸     

欧拉羊与山谷型藏羊杂交F_1代羔羊补饲兼放牧育肥试验效果观察

用欧拉羊杂交改良山谷型藏羊,对杂交F1代羔羊补饲兼放牧育肥试验,补饲阶段试验结果表明：经过90 d补饲,试验组增重10.88kg,比对照组高4.32 kg（P〈0.01）,平均日增重0.121 kg,比对照组高0.048 kg;放牧育肥阶段试验结果表明：经过3个月放牧育肥,试验组增重9.09 kg,比对照组高2.67 kg（P〈0.05）,平均日增重0.101 kg,比对照组高0.03 kg。