Tropical Animal Science Journal最新文献_第6页

In Vitro, In Compost, and In Vivo Assessment of Chitosan-Polyethylene Glycol as an Intravaginal Insert for Progesterone Delivery in Sheep 壳聚糖-聚乙二醇在体外、堆肥和体内作为阴道内植入物用于绵羊孕酮输送的研究

IF 0.8

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.295

E. Y. Yessa, L. Tumbelaka, I. Wientarsih, M. F. Ulum, B. Purwantara, A. Amrozi

引用次数: 1

Forage Production and Nutrient Content of Different Elephant Grass Varieties Cultivated with Indigofera zollingeriana in an Intercropping System 间作栽培不同象草品种的饲料产量及养分含量

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Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.321

A. Ernawati, L. Abdullah, I. Permana, P. D. M. Karti

{"title":"Forage Production and Nutrient Content of Different Elephant Grass Varieties Cultivated with Indigofera zollingeriana in an Intercropping System","authors":"A. Ernawati, L. Abdullah, I. Permana, P. D. M. Karti","doi":"10.5398/tasj.2023.46.3.321","DOIUrl":"https://doi.org/10.5398/tasj.2023.46.3.321","url":null,"abstract":"A proper planting system and efficient management are needed to cultivate forage effectively. Therefore, this research aimed to evaluate forage production and nutrient content of different elephant grass varieties grown with Indigofera in the intercropping system and were harvested at different intervals of defoliation. The research was conducted in the dry and rainy seasons using a randomized block design with 3 factors (2x2x2) and 4 replications. The first factor was two different elephant grass varieties consisting of cv. Pakchong and Taiwan, the second factor was the planting pattern, including intercropping and monoculture, while the third factor was harvesting age, comprising 50 days and 60 days. The results showed an interaction effect between grass varieties, planting patterns, and harvesting ages. Intercropping the Pakchong varieties with Indigofera and harvesting at 60 days produced the highest forage fresh weight and DM production, ADF as well as NDF contents and yields, CP yield, and the highest carrying capacity (p<0.05) according to DM intake. When harvested at 50 days, Indigofera increased the protein content of forage, but this effect did not occur when it was harvested at 60 days. Furthermore, nutrient yields were not affected by interactions of three factors in the rainy season (p>0.05), but in the dry season, the highest ash and CP yields were produced by the Pakchong variety intercropped with Indigofera and harvesting at 60 days. The highest ADF and NDF yields were obtained from the Taiwan varieties grown in monoculture and harvested at 60 days. Based on the results, it was concluded that the two varieties of elephant grass could be cultivated with Indigofera in the intercropping system and harvesting time of 60 days will produce the highest nutrient yield and carrying capacity.","PeriodicalId":42234,"journal":{"name":"Tropical Animal Science Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44375735","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

Development of Cheese as an Antioxidant Functional Food with the Addition of Orthodox Black Tea 添加正统红茶的奶酪抗氧化功能食品的研制

IF 0.8

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.367

I. Fadhlurrohman, T. Setyawardani, J. Sumarmono

{"title":"Development of Cheese as an Antioxidant Functional Food with the Addition of Orthodox Black Tea","authors":"I. Fadhlurrohman, T. Setyawardani, J. Sumarmono","doi":"10.5398/tasj.2023.46.3.367","DOIUrl":"https://doi.org/10.5398/tasj.2023.46.3.367","url":null,"abstract":"COVID-19 and the increase in degenerative diseases are the reasons for the high consumption of functional foods. This study investigated the physicochemical, sensory, and functional characteristics of cheese enhanced with orthodox black tea. The primary research materials were 40 liters of fresh cow’s milk, orthodox black tea (OBT), mesophilic bacteria ( Lactococcus lactis ), animal calf rennet, and CaCl₂. An experimental completely randomized design (CRD) was employed in the study to four treatments, namely control (T 0 ), and the addition of 0.5% OBT (T 1 ), 1% OBT (T 2 ), 1.5% OBT (T 3 ), and 2% OBT (T 4 ). Each treatment was repeated four times and performed in duplicate. The observed variables were physical properties (colors and textures), chemical properties (moisture content, total solids, pH, and total titratable acidity), antioxidant activity, and sensory properties of cheese. The results showed that adding OBT up to 2% produced significantly different levels of pH, total titratable acidity, values (L*, a*, b*), hardness, antioxidant activity, and sensory properties of cheese. No significant difference was observed in the moisture content, total solids, and stickiness of cheese. Conclusively, incorporating OBT up to 2% in cheese making tends to increase the functional properties of cheese that include the a* value, total titratable acidity, and antioxidant activity, but it also decreases the L* and b* values, hardness, and pH value. The panelist’s preference was the highest for cow’s milk cheese with the addition of 0.5","PeriodicalId":42234,"journal":{"name":"Tropical Animal Science Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48647178","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

The Effect of Using Acidified Imperata cylindrica as a Co-substrate with Dairy Cow Manure on the Digesters Performance 酸化白茅与牛粪共底物对消化池性能的影响

IF 0.8

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.361

A. R. Mustikasari, S. Sutaryo, N. Ufidiyati, A. Purnomoadi

{"title":"The Effect of Using Acidified Imperata cylindrica as a Co-substrate with Dairy Cow Manure on the Digesters Performance","authors":"A. R. Mustikasari, S. Sutaryo, N. Ufidiyati, A. Purnomoadi","doi":"10.5398/tasj.2023.46.3.361","DOIUrl":"https://doi.org/10.5398/tasj.2023.46.3.361","url":null,"abstract":"The objective of the current study was to examine the effect of the utilization of acidified cogon grass (CG) ( Imperata cylindrica ) as a co-substrate for the anaerobic digestion of dairy cow manure (DCM). Four continuous stirred-tank reactor (CSTR) digesters with various substrate compositions, namely, T1 (100% DCM), T2 (95% DCM and 5% CG), T3 (95% DCM and 5% acidified CG using 4% H 2 SO 4 solution), and T4 (95% DCM and 5% acidified CG using Wuluh star fruit ( Averrhoa bilimbi L) filtrate), were operated. This study was conducted for 66 d or 3 hydraulic retention times (HRTs). Also, it evaluated the methane production of the digested slurry of each CSTR digester (batch-type) with five replications in each treatment. The results indicated that the methane production in T2, T3, and T4 in the unit of L/kg substrate increased by 35.52%, 41.95%, and 45.44%, respectively, compared with that in T1. Furthermore, the productions in T3 and T4 increased by 4.35% and 7.25%, respectively, compared with that in T2. The production from the slurries of CSTR digesters in units of L/kg substrate and L/kg volatile solid (VS) showed significantly different results (p<0.05).","PeriodicalId":42234,"journal":{"name":"Tropical Animal Science Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42093469","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

Dairy Cattle Body Width Principal Component and the Correlation Level to Milk Yields as An Option for Selection Approach 奶牛体宽主成分及其与产奶量的相关水平作为一种选择方法

IF 0.8

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.269

S. Prabowo, Ş. İnal, M. Garip

{"title":"Dairy Cattle Body Width Principal Component and the Correlation Level to Milk Yields as An Option for Selection Approach","authors":"S. Prabowo, Ş. İnal, M. Garip","doi":"10.5398/tasj.2023.46.3.269","DOIUrl":"https://doi.org/10.5398/tasj.2023.46.3.269","url":null,"abstract":"The body-width linear traits of dairy cattle affect their production capacity, particularly milk yield characteristics. Even so, the prominent dairy cattle body width linked to the milk yield up to this point is not explicitly articulated. Therefore, this exploration aimed to identify the best body width characteristic related to production capacity and milk yields as a selection criterion. The investigation samples were 121 heads of Friesian Holsteins raised in Indonesia. The total measured body width of dairy cattle was eleven variables. All parameters were examined on a centimeter unit scale. R software version 4.2.1 is synchronized with RStudio to implement principal component analysis (PCA), Pearson’s correlation, and regression. The PCA uncovered the shoulder width (SHW), chest width (CHW), loin width (LNW), rump width (RMW), thurl width (TLW), pin width (PNW), and rear udder width (RUW) as significant elements of body width. Afterward, the highest relationship to milk yield characteristics was controlled by the rear udder width (RUW) and teat back-view width (TBW) traits serially. Due to the TBW being disqualified from the first principal component, its place is taken by the PNW trait. As an epilogue, exploiting the RUW trait as the main priority for the lactation cow selection scheme is strongly advocated. Meanwhile, the PNW trait is the initial priority for calves and heifers.","PeriodicalId":42234,"journal":{"name":"Tropical Animal Science Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41992844","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

Determinants of Cost Inefficiency and Farmer Performance in Broiler Contract Farming 肉鸡合同养殖中成本低效率和农户绩效的决定因素

IF 0.8

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.382

J. M. M. Aji, M. Rondhi, A. Suwandari, T. Hapsari, J. Januar, R. Yanuarti, Rokhani Rokhani

{"title":"Determinants of Cost Inefficiency and Farmer Performance in Broiler Contract Farming","authors":"J. M. M. Aji, M. Rondhi, A. Suwandari, T. Hapsari, J. Januar, R. Yanuarti, Rokhani Rokhani","doi":"10.5398/tasj.2023.46.3.382","DOIUrl":"https://doi.org/10.5398/tasj.2023.46.3.382","url":null,"abstract":"The broiler industry plays an important role in meeting the growing demand for animal protein. Ensuring favorable farming conditions are needed to maintain the meat supply, and theoretically, this can be improved through the implementation of Contract Farming (CF). CF grants farmers the privilege to predict quantities, prices, and reduce production risks. However, one of the key challenges in establishing CF is the cost efficiency and performance of farmers. This study aims to develop a cost function for farmers, identify factors contributing to inefficiency, and evaluate farmer performance. The purposive sampling method is employed to select broiler farmers participating in contract farming as the sample for this study. Primary data were collected through surveys. Stochastic frontier cost analysis is utilized to derive a broiler cost function while examining the causes of farm inefficiency and their relationship with farmers’ performance variables. The results indicate that the broiler cost function is significantly influenced by labor costs, the price of day-old chickens, feed expenses, and harvest tonnage. Meanwhile, the inefficiency effect is substantially influenced by farmer age, education, household size, experience, and mortality ratio (MR). Reducing the MR can increase broiler yield, directly improving cost efficiency and, thus farmers’ income. Nonetheless, a comprehensive approach that includes training, monitoring, feedback, and incentivization is needed to enhance farmer performance in broiler contract farming.","PeriodicalId":42234,"journal":{"name":"Tropical Animal Science Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44532216","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 Import Restrictions Policy on Dairy Supply and Demand in Indonesia 进口限制政策对印尼乳制品供需的影响

IF 0.8

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.375

P. Priyono, R. Nurmalina, Burhanuddin Burhanuddin, N. Ilham

{"title":"Impact of Import Restrictions Policy on Dairy Supply and Demand in Indonesia","authors":"P. Priyono, R. Nurmalina, Burhanuddin Burhanuddin, N. Ilham","doi":"10.5398/tasj.2023.46.3.375","DOIUrl":"https://doi.org/10.5398/tasj.2023.46.3.375","url":null,"abstract":"Dairy cows are one of the strategic livestock in Indonesia. However, increased dairy demand, which exceeds domestic dairy production, increases dairy import quantity. As dairy import increases, import tariff as an import restriction policy can be used to protect the sustainability of domestic dairy production. This study aimed to investigate the impact of import tariff policy on dairy supply and demand in Indonesia. This study used secondary data obtained from various official institutions. Factors determining dairy supply and demand were estimated using two-stage least squares (2SLS), and the impact of import tariff policy was estimated using a simultaneous equation system model. The empirical results indicate that the import tariff policy has a positive impact on dairy supply and a negative impact on dairy demand. Import tariffs were a factor determining the positive impact on dairy production, dairy cow population, and domestic dairy prices. The import tariff policy also had a negative impact on decreasing the quantity of dairy imports. It is concluded that import tariffs could be an important dairy import restriction policy to protect domestic dairy production and dairy producers in Indonesia.","PeriodicalId":42234,"journal":{"name":"Tropical Animal Science Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45636437","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 Dietary Supplementation of Arginine, Tryptophan, and Taurine on Productive Performance, Egg Quality, and Health Status of Laying Hens Raised Under Heat Stress Conditions 日粮添加精氨酸、色氨酸和牛磺酸对热应激条件下蛋鸡生产性能、蛋品质和健康状况的影响

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Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.337

C. Kwon, J. Nam, G. P. Han, D. Y. Kim, D. Kil

引用次数: 0

Front-matter 前页

Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.fm.i

K. G. Wiryawan

引用次数: 0

Supplementation of Banana By-products Hay does not Alter Serum Biochemistry of Lambs 添加香蕉副产品干草对羔羊血清生化无影响

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Tropical Animal Science Journal Pub Date : 2023-09-01 DOI: 10.5398/tasj.2023.46.3.330

L. K. G. Barbosa, N. C. Silva, N. J. F. Oliveira, R. A. C. Passetti, L. C. Geraseev

引用次数: 0