Nihon Yoton Gakkaishi最新文献_第3页

Effects of Dietary Supplementation of Fermented Botanical Products on the Digestibility of Crude Protein, Ether Extracts and Crude Fiber, and Carcass Characteristics in Fattening Pigs 饲粮中添加发酵植物产品对育肥猪粗蛋白质、粗脂肪和粗纤维消化率及胴体特性的影响

Nihon Yoton Gakkaishi Pub Date : 2021-09-21 DOI: 10.5938/youton.58.3_142

Hideto Torii, Takumi Suidu, Shinsuke Kishida, Masayoshi Tsukada, S. Sukemori

引用次数: 0

A Novel Indicator for Evaluating the Change of Genetic Composition of a Developed Pig Strain 一种评价猪株系遗传组成变化的新指标

Nihon Yoton Gakkaishi Pub Date : 2021-09-21 DOI: 10.5938/youton.58.3_125

T. Honda, K. Oyama, Masahiro Sato

引用次数: 0

Essential Role of Extracellular Type V Collagen for Porcine Adipocyte Development 细胞外V型胶原蛋白在猪脂肪细胞发育中的重要作用

Nihon Yoton Gakkaishi Pub Date : 2021-06-21 DOI: 10.5938/youton.58.2_53

I. Nakajima, F. Nakamura, K. Chikuni

{"title":"Essential Role of Extracellular Type V Collagen for Porcine Adipocyte Development","authors":"I. Nakajima, F. Nakamura, K. Chikuni","doi":"10.5938/youton.58.2_53","DOIUrl":"https://doi.org/10.5938/youton.58.2_53","url":null,"abstract":"The aim of this study was to examine the role of collagens in the differentiation of porcine subcutaneous preadipocytes (PSPA) using a specific post-transcriptional inhibitor of collagen synthesis, ethyl-3,4-dihydroxybenzoate (EDHB). Exponentially growing fibroblast-like PSPA cells were found to produce types I, III, IV, V and VI collagens by indirect immunofluorescence staining. When confluent preadipocyte cultures were stimulated with differentiation medium, various types of collagen matrices were assembled in the extracellular space of adipocytes. Since preadipocytes scarcely interconnect collagens despite the steady-state level expression of procollagen mRNAs, it appears that increasing the cell-associated form of collagens is an event unique to adipocytes. PSPA cells exposed to 40 μM EDHB severely damaged the development of collagen fibrillar networks in adipocytes without affecting their transcription levels, and their triglyceride (TG) accumulation levels were reduced to 30% those of normally differentiated adipocytes. RT-PCR analysis also demonstrated a decrease in the expressions of some adipogenic genes including the master regulator of adipocyte gene transcription, PPARγ2, by EDHB-treated adipocytes, indicating the requirement for collagen during adipose conversion. The exogenous collagen types I, III, IV, V and VI were then individually supplied under EDHB conditions to determine whether or not they could make up for the lack of their own endogenous products. Of the five types of collagen, cells cultured on type V collagen were the only ones to improve the inhibitory effect of EDHB so as to recover up to 63.8% of TG content accompanied by the up-regulated expressions of PPARγ2 and adiponectin. These findings suggest that the extracellular signal from type V collagen is one of the major contributing factors in the differentiation pathway of porcine adipocytes. Jpn. J. Swine Science, 58, 2 : 53-64","PeriodicalId":274137,"journal":{"name":"Nihon Yoton Gakkaishi","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125984630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning for Prediction of Inorganic Nitrogenous Compounds Concentration in Swine Wastewater Treatment Plant Effluent 猪污水处理厂出水无机氮化合物浓度的机器学习预测

Nihon Yoton Gakkaishi Pub Date : 2021-06-21 DOI: 10.5938/youton.58.2_65

Yasuo Tanaka

引用次数: 0

Rice Feeding for Pigs 猪的大米饲养

Nihon Yoton Gakkaishi Pub Date : 2021-03-08 DOI: 10.5938/youton.58.1_1

R. Takada

引用次数: 0

Effects of Cross-fostering on Piglet Performance at Weaning and Subsequent Reproductive Performance in Hyper-prolific Sows on a Japanese Commercial Farm 交叉饲养对日本某商业农场超高产母猪断奶仔猪生产性能及繁殖性能的影响

Nihon Yoton Gakkaishi Pub Date : 2021-03-08 DOI: 10.5938/youton.58.1_19

Y. Nishimura, M. Kagawa, Y. Kagawa, T. Kagawa, Y. Sasaki

{"title":"Effects of Cross-fostering on Piglet Performance at Weaning and Subsequent Reproductive Performance in Hyper-prolific Sows on a Japanese Commercial Farm","authors":"Y. Nishimura, M. Kagawa, Y. Kagawa, T. Kagawa, Y. Sasaki","doi":"10.5938/youton.58.1_19","DOIUrl":"https://doi.org/10.5938/youton.58.1_19","url":null,"abstract":"In recent decades, the prolificacy potential of sows was dramatically developed by genetic im-provements, and cross-fostering (CF) practices are implemented to sows farrowed piglets more than their functional teat number. The objective of this study was to investigate the effect of CF on subsequent performance at weaning and post weaning. The present study was conducted on a commercial farm reared hyper-prolific sows. Data used in this study was 2,292 farrowing records in 1,337 sows that farrowed from March 2016 to February 2017. Sows were classified to three groups based on CF practices: non-CF sows, CF－ sows that defined as sows provided their piglets to other sows, and CF＋ sows that defined as sows received piglets from other sows. Linear mixed-effect model was used to analyze the relationship between CF and productivity, including parity and number of piglets at beginning of lactation in the model. Of 2,292 records, 1,366 were practiced CF (59.6%), and proportion of CF－ and CF＋ sows were 28.5% and 31.1%, respectively. CF was associated with number of piglets weaned and preweaning piglet mortality only in the number of piglets at beginning of lactation 13-14 pigs group: CF－ and non-CF sows had 1.2-1.7% higher preweaning piglet mortality and 0.3-0.4 lower number of piglets weaned (P＜0.05). CF－ sows had 0.2 kg lower piglet weight at weaning than non-CF and CF＋ sows (P＜0.05). CF was not associated with weaning to first mating interval and farrowing rate at first service, but CF－ sows had the highest number of piglets born alive at subsequent parity and CF＋ sows had the lowest (P＜0.05). In conclusion, there was no apparent reduction of productivity between non-CF sows and CF practices sows.","PeriodicalId":274137,"journal":{"name":"Nihon Yoton Gakkaishi","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116378768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Feeding Pellets Made from Japanese Sake Lees, Brown Rice and Soy Sauce Cake on Growth Performance and Meat Quality in Finishing Pig 日本清酒糟、糙米和酱油饼颗粒饲料对育肥猪生长性能和肉品质的影响

Nihon Yoton Gakkaishi Pub Date : 2021-03-08 DOI: 10.5938/youton.58.1_35

Katsuya Aoyama, Jun Kobayashi, Naobumi Satoh, Yuumi Mafune, Yuji Ishikawa

引用次数: 0

Comparison of Five Growth Curve Models for Describing the Growth of Okinawa Agu Boars 5种描述冲绳阿古公猪生长曲线模型的比较

Nihon Yoton Gakkaishi Pub Date : 2021-03-08 DOI: 10.5938/youton.58.1_10

S. Touma, Motoharu Oyadomari

{"title":"Comparison of Five Growth Curve Models for Describing the Growth of Okinawa Agu Boars","authors":"S. Touma, Motoharu Oyadomari","doi":"10.5938/youton.58.1_10","DOIUrl":"https://doi.org/10.5938/youton.58.1_10","url":null,"abstract":"Okinawa Agu pigs are only raised in the Okinawa prefecture and are characterized by low growth performance and high-quality meat. This breed is often utilized as terminal boars for commercial pork production. The objective of this study was to investigate the growth pattern of Agu boars to inform their management. Five nonlinear growth models (Logistic, Gompertz, von Bertalanffy, Richards, and Janoschek) were used to describe the growth pattern of this breed. Animals were allowed ad libitum access to feed to 16 weeks of age and then reared under restricted feeding of 1.5 kg/day to 34 weeks of age. From birth to 34 weeks, body weight (BW) data of 14 Agu pigs were collected weekly. A comparison among the five models revealed that the Richards model was the best fit to the growth data based on the adjusted R-square and Akaike’s information criterion. In the leaveone-out cross-validation, the Richards model was also superior in predicting the accuracy. According to the Richards function, Agu boars reached the inflection point of the maximum growth rate at 11.6 weeks at a BW of 29.6 kg. The maximum growth rate of Agu boars was 496.9 g/day. Jpn. J. Swine Science, 58, 1 : 10-18","PeriodicalId":274137,"journal":{"name":"Nihon Yoton Gakkaishi","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115641453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optimization of Vitrified Porcine Blastocyst Viability using The Micro Volume Air Cooling (MVAC) Method 微体积空气冷却(MVAC)法优化玻璃化猪囊胚活力

Nihon Yoton Gakkaishi Pub Date : 2021-03-08 DOI: 10.5938/youton.58.1_28

K. Misumi, S. Egawa, H. Misawa, Y. Hirayama

{"title":"Optimization of Vitrified Porcine Blastocyst Viability using The Micro Volume Air Cooling (MVAC) Method","authors":"K. Misumi, S. Egawa, H. Misawa, Y. Hirayama","doi":"10.5938/youton.58.1_28","DOIUrl":"https://doi.org/10.5938/youton.58.1_28","url":null,"abstract":"We used the microvolume air cooling (MVAC) method to optimize sugar additives for vitrification media, in order to improve the survivability of vitrified porcine blastocysts. We also examined the effectiveness of vitrification devices by comparing a hand-made device with a commercially available device (Hi-Stick). Blastocysts were collected from gilts, then vitrified in either a sucrose-added vitrification media using a hand-made device (HDM-S), or in a trehalose-added vitrification media using a hand-made device (HDM-T) or a Hi-Stick (HST-T). Survival of the vitrified embryos was assessed using in vitro cultures, and by embryo transfer to recipient gilts. Untreated embryos (fresh embryos) were used as the control. The rate of hatched blastocysts in vitro was 73.1% for HDM-S, 76.9% for HDM-T, 88.0% for HST-T, and 92.0% for the control group. No significant difference was observed between each group. The piglet production rate in of the embryo transfer test, was 13.3% for HDM-S, 26.5% for HDM-T, 32.3% for HST-T, and 42.4% for the control group. The piglet production rate was calculated as follows: total number of delivered piglets / total number of transferred embryos. No significant difference was observed between HST-T and the control group, however, the HDM-S per-formed significantly worse in the piglet production rate than the other groups. The HDM-T showed a significantly lower production rate than the control group. These results indicate that the piglet production rate can be optimized when using the MVAC method for porcine blastocysts vitrified in trehalose-added media by using a Hi-Stick, because the resultant piglet production rate is similar to that of fresh embryos.","PeriodicalId":274137,"journal":{"name":"Nihon Yoton Gakkaishi","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128226187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Classical Swine Fever Outbreak in 2009 in Tahara Region, Aichi, that Has High Density of Swine Farms on Production Activity 2009年爱知县田原地区猪瘟疫情对高密度猪场生产活动的影响

Nihon Yoton Gakkaishi Pub Date : 2021-03-08 DOI: 10.5938/youton.58.1_45

Yosuke Sasaki, Ryohei Matsuo, Mitsugi Ito, Yoshiriro Mizukami

引用次数: 0