Asian Journal of Dairy and Food Research

Background: Milk production and composition can vary during different stages of lactation. The use of probiotics can have an impact on milk quality and quantity. Methods: The experiment investigated the effects of dietary supplementation with probiotic on milk production and quality in crossbreed Jersey dairy cows [Jersey x Local (F1 50% Jersey generation)]. Sixteen crossbred Jersey dairy cows were selected and were divided into four groups: T0 (control group), T1, T2 and T3. The cows in the T0 group were given normal feed without probiotics. Meanwhile, the cows in the T1, T2 and T3 (treatment groups) were supplemented with 20 gm, 25 gm and 30 gm probiotics/animal/day for six months. Milk production and milk content of individual cows were evaluated during the three stages of lactation (early lactation, mid-lactation and late lactation). Result: Milk production was significantly (P less than 0.05) increased in the probiotic-supplemented group in a dose-dependent manner during all three stages of lactation compared to the control group. Fat, protein, SNF, density and ash content of milk were also significantly (P less than 0.05) increased in the probiotic supplemented group (T1, T2 and T3) when compared to the control group (T0). However, milk lactose and freezing point decreased in probiotic-supplemented groups (T1, T2 and T3) compared to the control group (T0). Moreover, out of the three different doses of treatment groups, milk quality was significantly improved in the group supplemented with 30gm/cow/day (T3) during all stages of lactation. Dietary supplementation with probiotics can improve milk production and quality in crossbred Jersey cows.

M.A. Al-Mahmud

M.A. Miah

M.S. Islam

M.M.R. Howlader

Dietary Supplementation of Probiotics to Improve Milk Production and Milk Quality in Crossbred Jersey Dairy Cows

益生菌膳食补充对杂交泽西奶牛产奶量和牛奶品质的改善作用

Background: Accurate and up-to-date information about amino acid profile is crucial in the production and promotion of dairy products and fermented milk because both components contribute to the nutritional and market value of the dairy products. Methods: This study aims to evaluate the amino acid profile of goat milk kefir supplemented with Lacticaseibacillus casei AP, oat milk or both during 14-day storage using the gas chromatography method. Result: The results demonstrated that Lacticaseibacillus casei AP and oat milk incorporated into kefir production significantly affected amino acids (aspartac acid, glutamic acid, tyrosine, valin, phenylalanine, ileusin and leucine).The dominant amino acids in the treatments were phenylalanine (46.66 ppm), glutamic acid (40.40 ppm) and lysine (23.91 ppm). The storage time only significantly reduced the amount of valine. Conclusively, incorporating Lacticaseibacillus casei AP, oat milk or both into goat milk kefir did not negatively affect the amino acid profile during storage time.

Putri Dian Wulansari

Widodo .

Sunarti .

Nurliyani .

Amino Acid Profile of Goat Milk Kefir with Lacticasei bacillus casei AP and Oat Milk during Storage

储存期间羊奶开菲尔与乳酸乳球菌乳脂亚种AP和燕麦奶的氨基酸谱

Background: The current study aimed to detect in the first month of lactation the prevalence and risk factors of subclinical mastitis (SCM) and its effects on reproductive performance in dairy cows in western Algeria. Methods: 530 cows from 18 herds were examined in the study. California Mastitis Test (CMT) was used to screen subclinical mastitis for individual cows and a score of two or more for any quarter without any clinical symptoms and abnormalities in milk was considered as positive for SCM. Milk samples positive for subclinical mastitis were subjected to bacteriological analysis. Result: The present study revealed a prevalence of subclinical mastitis of 34.90%, (185 of 530). The most common pathogen identified from CMT-positive milk samples was Staphylococcus aureus with 35.62%. Logistic regression analysis showed that parity, farming system and milking method affect significantly the prevalence of SCM. Subclinical mastitis during the first month of lactation affected significantly the reproductive performance by increasing calving to first service interval (CFSI), calving-to-conception interval (CCI)and number of services per conception (NSPC). The results of this study highlight the importance of mastitis control programs in dairy farms by showing that a high frequency of subclinical mastitis caused by Staphylococcus aureus may have a negative impact on the reproductive performance of dairy cows.

M. Bouamra

M. Ziane

M. Akkou

L. Bentayeb

Y. Titouche

Effect of Subclinical Mastitis Detected in the First Month of Lactation on the Reproductive Performance of Dairy Cows in Western Algeria

西阿尔及利亚泌乳初期亚临床乳腺炎对奶牛繁殖性能的影响

Background: Colibacillosis is an infectious disease that affects livestock such as cattle, pigs, goats, sheep, horses and poultry caused by the bacterium Escherichia coli. E. coli can form biofilms when environmental conditions are unfavorable. The purpose of this research is to determine the effect of honeybee propolis on the formation of E. coli biofilm in vitro. Methods: The research began with the dilution of propolis using the microdilution technique and determination of concentration values with a modified minimum inhibitory concentration (MIC). Biofilm inhibition assays were conducted in microplates with five propolis concentration treatments: 0.39 mg/mL, 0.78 mg/mL, 1.56 mg/mL, 3.125 mg/mL and 6.25 mg/mL, along with negative and positive controls, with eight replications. Subsequently, crystal violet quantification and absorbance value readings were done using an ELISA reader with a wavelength of 595 nm. Result: The results showed that between concentrations of 3.125 mg/mL, 6.25 mg/mL and the negative control, there was no significant difference with mean values of 0.09963, 0.078857 and 0.079375, respectively. Honeybee propolis extract has the potential to act as an antibiofilm against E. coli in vitro, with the minimum concentrations capable of inhibiting biofilm formation being 3.125 mg/mL and 6.25 mg/mL.

Yulianna Puspitasari

Amazing Grace

Aswin Rafif Khairullah

Hartanto Mulyo Raharjo

Kadek Rachmawati

Endang Suprihatini

Mirza Atikah Madarina Hisyam

The Effect of Honeybee Propolis on Escherichia coli Biofilm Formation in vitro

蜂胶对体外大肠杆菌生物膜形成的影响

Background: The study aimed to investigate the potential antioxidant and antimicrobial properties of four spice extracts against five common foodborne pathogens. Methods: The antimicrobial and antioxidant efficacy of four spice extracts from Zingiber officinales, Syzygium aromaticum, Cuminum cyminum and Origanum vulgare were examined against five foodborne pathogens. Listeria monocytogenes, Bacillus cereus, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa using disc diffusion technique. The respective five pathogenic strains were tested against the antibiotic Gentamycin (5 mg) as a control. Result: From the study, it was found that Z. officinales, S. aromaticum, C. cyminum and O. vulgare extracts were found potentially active with diverse efficiency against the five respective bacterial strains at a standard concentration of 10 mg/mL while the extract of C. cyminum was only most effective against L. monocytogenes. Whereas E. coli and B. cereus were found resistant to Z. officinales and C. cyminum. The Z. officinales inhibited the bacterial growth with the MIC at 2.50 mg/mL but other extracts showed an alike response at 5.0 mg/mL. However, the spice extracts showed highly durable bacteriostatic activities against the strains of foodborne pathogens with MIC ranging from 2.5 to 15.0 mg/mL.

Md. Zakirul Islam

Sumaiya Arefin

Md. Sayed Hasan

Md. Abid Hasan Sarker

Md. Mehedi Hasan Khandakar

Arifur Rahman

Mohammad Shohel Rana Siddiki

Md. Harun-ur-Rashid

Antimicrobial and Antioxidant Efficacy of Spice Extracts and Their Application against Common Foodborne Pathogens

香料提取物的抗菌和抗氧化功效及其对常见食源性病原体的应用

Background: This study explores the viability of carob pulp flour (CPF) as an alternative to cocoa formulation, focusing on its nutritional attributes and sensory acceptability. Methods: Physicochemical analysis was conducted to assess the composition of CPF, including its fiber, sugar, mineral, protein and fat content using GC-MS. X-ray fluorescence (XRF) was employed to determine essential mineral concentrations. Three chocolate formulations (F0, F1 and F2) were developed and evaluated. Result: CPF was found to be rich in fibers (7%) and sugars (79.64%), with notable levels of potassium (61.76%) and calcium (28.18%). However, it contained relatively low levels of protein (1.51%) and fat (0.6%). The predominant fatty acids in CPF were palmitic acid (16.70%) and oleic acid (18.37%). Among the chocolate formulations tested, F2 (73.3g CPF and 10g sugar) emerged as the most preferred by participants across different demographics and age groups. This suggests that CPF-based chocolate, with a balanced flavor profile and moderate sweetness, provides a highly appealing sensory experience.

Nehal Fatima

Benelhadj Djelloul Saadia

Bouchakour Meryem

Bengag Amine

Nutritional Approach of Carob Pulp Powder “Ceratonia siliqua L.’’ from Algeria: Potential as Cocoa Substitute in Chocolate Formulations

阿尔及利亚角豆粉“Ceratonia siliqua L.”的营养方法：作为巧克力配方中可可替代品的潜力

出版信息	出版商: Agricultural Research Communication Centre，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 2019，原创研究文献占比: ，自引率:， Gold OA占比:

Asian Journal of Dairy and Food Research

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Dietary Supplementation of Probiotics to Improve Milk Production and Milk Quality in Crossbred Jersey Dairy Cows

Amino Acid Profile of Goat Milk Kefir with Lacticasei bacillus casei AP and Oat Milk during Storage

Effect of Subclinical Mastitis Detected in the First Month of Lactation on the Reproductive Performance of Dairy Cows in Western Algeria

The Effect of Honeybee Propolis on Escherichia coli Biofilm Formation in vitro

Antimicrobial and Antioxidant Efficacy of Spice Extracts and Their Application against Common Foodborne Pathogens

Dietary Supplementation of Probiotics to Improve Milk Production and Milk Quality in Crossbred Jersey Dairy Cows

Amino Acid Profile of Goat Milk Kefir with Lacticasei bacillus casei AP and Oat Milk during Storage

The Effect of Honeybee Propolis on Escherichia coli Biofilm Formation in vitro

Effect of Subclinical Mastitis Detected in the First Month of Lactation on the Reproductive Performance of Dairy Cows in Western Algeria

Nutritional Approach of Carob Pulp Powder “Ceratonia siliqua L.’’ from Algeria: Potential as Cocoa Substitute in Chocolate Formulations

ISSN	0971-4456, 0976-0563
h-index	6