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Effects of Amino Acid or Fulibao Nutritional Additives on Slaughter Performance and Pork Quality of Pigs

Animal Husbandry and Feed Science 2022年第4期14卷 33-36页

作者： Li Shaobo Zheng Boqiang Li Xiuliang Huang Jie Du Lijuan Sun Qinju Yang Cui Yang Jiahuang guangxi agricultural Vocational University Nanning 530009China

[Objective]The paper was to study the effects of amino acid or Fulibao nutritional additives on slaughter performance and pork quality of pigs,and to provide a theoretical basis for improving pork quality in pig breeding industry.[Method]Six Landrace×Yorkshire castrated male piglets were divided into three *** piglets in the first group were fed with conventional diet and used as the *** piglets in the experimental group I were fed with the conventional diet supplementing 0.1%Fulibao,and those in the experimental group II were fed with the conventional diet supplementing 0.36%compound amino acid *** piglets were reared for 2 months before being slaughtered.[Result]The average daily gains of piglets in the experimental groups I and II were 17.7%and 6.73%higher than that in the control group,but there was no difference in feed/gain ratio among the three *** dressing percentages of piglets in the experimental groups I and II were 2.7%and 1.72%higher than that in the control group,and the lean meat percentages were 3.5%and 7.97%higher than that in the control group,*** meat fat ratios in the two experimental groups were significantly higher than that in the control *** intermuscular fat in the experimental group II was significantly higher than that in the control ***,the contents of intermuscular fat and inosinic acid in the experimental group II were significantly lower than those in the control group.[Conclusion]Both additives can improve the average daily gain and main slaughter performance of pigs,but can not improve the inosine acid content,and the compound amino acid preparation can not improve the intermuscular fat content.

关键词： Slaughter performance Pork quality Nutritional additives Production performance

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Effects of Different Protein Energy Ratios on Fattening Performance,Slaughter Performance and Meat Quality of Pigs

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agricultural Biotechnology 2023年第2期12卷 59-62,75页

作者： Cui YANG Rongsheng JIANG Yongshao WU Xiying YANG Haihong LIAO Qian QIN Shishan QIN Ying ZHANG Jiahuang YANG Limei QIN Fulin WANG guangxi agricultural Vocational University Nanning 530009China Pingnan Animal Epidemic Prevention and Control Center Pingnan 537300China Qinzhou News and Media Center Qinzhou 535000China guangxi Silk Road Agriculture Co. LtdQinzhou 535008China

[Objectives]Protein energy ratio refers to the proportional relationship between protein and energy levels in animal diets,i.e.,the grams of crude protein corresponding to every megacalorie of energy,which is generally expressed as CP:ME or CP:*** study was conducted to investigate the effects of different diets on fattening and slaughter performance and meat quality traits for"L(Large Yorkshire)×L(Landrace)"crossbred pigs.[Methods]Eighteen piglets of L×L crossbred with similar body weights about 51 kg were *** piglets were divided into 3 groups randomly and each group was assigned to 3 replicates with 2 piglets in a *** A was fed diet Ⅰ (control diet),group B was fed the same diet of group A in the first month of the trial but fed diet Ⅱ in second month,and group C consumed diet Ⅲ.All the pigs were fed in the same feeding condition for two months except the different diets during the *** pig in similar body weight from each replicate was slaughtered for the determination of slaughter performance and meat quality traits in the end of the trial.[Results]The average daily feed intake(ADFI)of pigs from group B was only(2.32±0.52)kg and significantly lower than those from group A and group C(P0.05).Also,no differences occurred in the carcass length,back fat thickness,longissimus muscle (LM) area and dressing percentage(P>0.05).In addition,no differences were found in the meat quality traits of shear force,meat color,pH_(45 min),pH_(24 h) and cooking loss(P>0.05).However,the water-holding capacity of meat from group C was(2.58±0.02)ms and significantly lower than that of(2.80±0.20)ms from group A(P<0.05).Although the contents of glutamic acid and cystine in LM from group B was significantly lower than those from group A and group C(P<0.05),no differences occurred in the contents of other amino acids,the total amino acid and total flavor amino acid among the three

关键词： Protein energy ratio L×L crossbred Fattening Slaughter performance Meat quality IMF

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Effects of Chinese Herbal Medicine Feed Additives on Growth Performance and Dietary Nutrient Metabolism of Black-bone Chickens

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Asian agricultural Research 2022年第11期14卷 86-91页

作者： Cui YANG Fulin WANG Siqian WU Zhuyue WU Limei QIN Huofu WAN Zhengzhong XIAO Chunhua HUANG Jiahuang YANG Fengying WEI guangxi Vocational University of Agriculture Nanning 530009China Animal Husbandry Research Institute of guangxi Zhuang Autonomous Region Nanning 530001China guangxi Silk Road Agriculture Co. Ltd.Qinzhou 535008China

[Objectives]To study the effects of Chinese herbal medicine feed additives on the growth performance and dietary nutrient metabolic rate of black-one chickens.[Methods]480 pieces of 1-day-old Donglan Black-bone Chickens were selected and divided into 4 groups,with 6 replicates in each group,with 20 pieces in each *** them,group A was the control group and was fed the basal diet;the groups B,C,and D were the experimental groups,which were separately supplemented with 0.25%,0.50%and 1.00%of Chinese herbal medicine additives in the basal diet,and the experimental period was 70 *** the end of the feeding experiment,24 experimental chickens with similar body weight were selected from each group,and the same design of the feeding experiment was used to continue to feed the original diet for the metabolic experiment to determine the nutrient metabolic rate.[Results]Except the 50-70 d stage,the average daily gain(ADG)of group B in other stages was increased by 5.00%-9.15%(P0.05);at 36-49 d,the average daily feed intake(ADFI)of group A was higher than that of group B by 6.04%(P0.05);at 22-35 and 1-70 d,the feed to gain ratio(F/G)of group B was 6.32%and 3.41%lower than that of group A(P<0.05),and at 36-49 and 1-49 d,the F/G of group B was even lower;at 36-49 d,the F/G of group C was 10.15%lower than that of group A(P<0.05),and at 1-49 d,it was also lower than that of group A by 5.29%(P<0.01);there was no significant difference between t

关键词： Donglan Black-bone Chickens Chinese herbal medicine additives Growth performance Nutrient metabolic rate Antioxidant effect

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Research Overview on Occurrence and Control of Tetranychus urticae Koch in China

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Plant Diseases and Pests 2023年第4期14卷 18-23页

作者： Yang HAN Tingmi YANG Jingcheng WU Qiuling PANG Xiaowen LIANG Binghai LOU guangxi Academy of Specialty Crops Guangxi Laboratory of Germplasm Innovation and Utilization of Specialty Commercial Crops in North Guangxi/Guangxi Citrus Breeding and Cultivation Technology Innovation CenterGuilin 541004China

Tetranychus urticae Koch;Insecticide resistance;Chemical control This paper elaborates the occurrence factors and damage characteristics of Tetranychus urticae Koch in China,and emphatically summarizes three main control strategies of ***,namely agricultural control,chemical control and biological control,as well as research progress in its resistance *** problems existing in controlling *** and its resistance management strategies are put forward,to provide a theoretical basis for the resistance management and comprehensive control of ***.

关键词： Tetranychus urticae Koch Insecticide resistance Chemical control

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Effects of Chinese Herbal Medicine Additives on Growth,Immunity and Antioxidation of Chickens

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Medicinal Plant 2022年第5期13卷 114-118页

作者： Cui YANG Sicong LUO Siqian WU Limei QIN Liang WU Yang LIU Jiahuang YANG Qiang WU guangxi agricultural Vocational University Nanning 530072China The Animal Husbandry Research Institute of guangxi Zhuang Autonomous Region Nanning 530001China guangxi Analysis and Testing Research Center Nanning 530000China

Chinese herbal medicine additives can not only directly improve the growth performance of chickens,but also indirectly affect the growth of chickens by enhancing the antioxidant capacity,immunity and disease resistance of the body,and eliminating diseases and adverse factors,thereby improving the growth performance of *** the context of the current national prohibition of adding antibiotics to feed,the research and application of Chinese herbal medicine additives are of practical significance to eliminate the long-term use of antibiotics as chicken feed additives and reduce the threat to the environment and human *** this reason,the research related to the substitution of Chinese herbal medicine for antibiotics is made a brief introduction to provide a reference in research and production practice.

关键词： Chinese herbal medicine additives Chicken Growth properties Antioxidant capacity Immunological functioning Disease resistance

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Resistance Monitoring of Field Populations of Panonychus citri to Three Pesticides

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Plant Diseases and Pests 2024年第2期15卷 4-8页

作者： Yang HAN Tingmi YANG guangxi Citrus Breeding and Cultivation Technology Innovation Center/guangxi Laboratory of Germplasm Innovation and Utilization of Specialty Commercial Crops in North guangxi/guangxi Academy of Specialty Crops Guilin 541010China

[Objectives]The paper was to investigate the development of Panonychus citri resistance to commonly used pesticides in major citrus producing areas in China,and to screen out new green and efficient agents for its control and prevention.[Methods]The resistance changes of field populations of *** to abamectin,pyridaben,and bifenazate in 12 locations across five provinces in China were compared using the leaf disc impregnation method.[Results]*** in the tested areas exhibited the most severe resistance to abamectin,with approximately 91.7%of the field populations showing high levels of resistance to abamectin(112.1-560.5 times);50%of *** populations exhibited high levels of resistance to pyridaben(123.0-202.7 times),while the remaining populations showed intermediate levels of resistance(25.6-80.3 times);except for the Zhejiang Xiangshan 2019 and Jiangxi Yudu 2019 populations,which exhibited a medium level of resistance to bifenazate,the remaining 10 monitored populations demonstrated a high level of resistance to bifenazate(140.4-686.1 times).[Conclusions]It is advisable to discontinue the use of abamectin and bifenazate due to significant resistance observed in populations of *** monitored in 12 locations across 5 *** is recommended to reduce the frequency of pyridaben use and alternate with other acaricides that have different mechanisms of action due to the varying degrees of resistance developed.

关键词： Panonychus citri Resistance Pesticide Biological activity

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Overview of Occurrence,Prevention and Control of Panonychus citri in China

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Plant Diseases and Pests 2023年第5期14卷 11-15页

作者： Yang HAN Binghai LOU guangxi Academy of Specialty Crops Guangxi Laboratory of Germplasm Innovation and Utilization of Specialty Commercial Crops in North GuangxiGuilin 541010China

In order to further promote the prevention and control research of Panonychus citri and improve its control effect,this paper summarizes the main influencing factors of the outbreak,main control technology and drug re... 详细信息

关键词： Panonychus citri Drug resistance Prevention and control

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