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Full-Text Articles in Medicine and Health Sciences
Development Of Wireless Device Prototype For Measurement Of Rumen Ph And Temperature Continuously In Cattle, Piyanat Prasomsri, Apirak Tudsorn, Aekaluck Leklerdsiriwong, Chaidate Inchaisri, Siraphop Tooprakai
Development Of Wireless Device Prototype For Measurement Of Rumen Ph And Temperature Continuously In Cattle, Piyanat Prasomsri, Apirak Tudsorn, Aekaluck Leklerdsiriwong, Chaidate Inchaisri, Siraphop Tooprakai
The Thai Journal of Veterinary Medicine
This study aims to develop a prototype rumen pH and rumen temperature measuring device for continuous measurement. The benefit is for the monitoring and early diagnosis of metabolic diseases in cattle, especially rumen acidosis and subacute ruminal acidosis. The developed prototype device was approximately 50 millimeters in diameter, 145 millimeters in length and weighed 400 grams. The outer structure of the prototype was made from abs plastic made by a 3D printer, while the internal device contained pH and temperature sensors, a microcontroller and battery. The prototype was placed in the ventral sac of the rumen of fistulated cattle for …
An Analysis Of A Herd-Based Lactation Curve Reveals The Seasonal Effect From Dairy Cows Fed Under High Ambient Temperatures, Sumpun Thammacharoen, Somchai Chanpongsang, Narongsak Chaiyabutr, Supattra Teedee, Attapol Pornprapai, Aemwika Insam-Ang, Channarong Srisa-Ard, Niran Channacoop
An Analysis Of A Herd-Based Lactation Curve Reveals The Seasonal Effect From Dairy Cows Fed Under High Ambient Temperatures, Sumpun Thammacharoen, Somchai Chanpongsang, Narongsak Chaiyabutr, Supattra Teedee, Attapol Pornprapai, Aemwika Insam-Ang, Channarong Srisa-Ard, Niran Channacoop
The Thai Journal of Veterinary Medicine
The presentinvestigation was carried out to demonstratethe effect of high ambient temperature (HTa) on lactation performance with herd-based measurement. One large dairy farm in Thailandwith more than 300crossbred Holstein cows milking each monthwas selected. The meteorological data was recorded once a week during the period of observation. Milking cows (n=90) were observed for a 10-month lactation curve based on their calving seasons: Summer, rainy and winter. The lactation curve was fitted by nonlinear regression using the reduced lactation persistency model.The climatic conditions revealed a high degree of temperature and humidity index (THI). The average THI throughout the year was 84.8 …
Association Of Snps In The Coding Regions Of Cd4 Gene With Mastitis Susceptibility And Production Traits In Dairy Cattle, Saqib Zeb, Nawab Ali, Sadaf Niaz, Arsalan Rasheed, Irfan Khattak, Naimat Ullah Khan, Yachun Wang, Tahir Usman
Association Of Snps In The Coding Regions Of Cd4 Gene With Mastitis Susceptibility And Production Traits In Dairy Cattle, Saqib Zeb, Nawab Ali, Sadaf Niaz, Arsalan Rasheed, Irfan Khattak, Naimat Ullah Khan, Yachun Wang, Tahir Usman
The Thai Journal of Veterinary Medicine
CD4 gene is reported to have significant role in various inflammatory conditions including mastitis. Therefore, the current study was designed to screen out single nucleotide polymorphisms (SNPs) in the bovine CD4 gene and to evaluate its effects on mastitis indicator and production traits. Total 201 milk and blood samples were collected from dairy cattle maintained at government dairy farms of Khyber Pakhtunkhwa, Pakistan. Milk samples were used for DHI test (milk composition and somatic cell count) and the blood for DNA extraction. SNPs were initially detected in the pool DNA samples followed by screening in the whole cohort. The association …
Respiratory Hypocapnia At Different Stages Of Lactation During Long-Term Exogenous Bovine Somatotropin In Crossbred Holstein Cattle In The Tropic, Sumpun Thammacharoen, Siripen Komolvanich, Somchai Chanpongsang, Narongsak Chaiyabutr
Respiratory Hypocapnia At Different Stages Of Lactation During Long-Term Exogenous Bovine Somatotropin In Crossbred Holstein Cattle In The Tropic, Sumpun Thammacharoen, Siripen Komolvanich, Somchai Chanpongsang, Narongsak Chaiyabutr
The Thai Journal of Veterinary Medicine
The aim of this study was to investigate the influence of long-term administration of recombinant bovinesomatotropin (rbST) on the acid-base homeostasis of lactating crossbred cows under hot and humid condition ofThailand. Two groups of five animals each of primiparous crossbred dairy cattle were supplemented either with rbSTor with control vehicle every 14 days throughout the period of lactation. The blood gas parameters, milk yield andfeed intake from both groups were recorded at each stage of lactation. Cows supplemented with rbST showed milddegree of acid-base imbalance during early to mid lactation. The lower partial pressure of carbon dioxide (paCO2) andplasma bicarbonate …
Chronic Mastitis In Small Dairy Cattle Herds In Muang Khon Kaen, Jaruwan Kampa, Varaporn Sukolapong, Anantachai Chaiyotwittakun, Sarinya Rerk-U-Suke, Arunee Polpakdee
Chronic Mastitis In Small Dairy Cattle Herds In Muang Khon Kaen, Jaruwan Kampa, Varaporn Sukolapong, Anantachai Chaiyotwittakun, Sarinya Rerk-U-Suke, Arunee Polpakdee
The Thai Journal of Veterinary Medicine
Monthly records of bulk tank milk somatic cell count (BMSCC) of all 194 dairy herds in Muang, Khon Kaen were used as an indicator of chronic mastitis problems; i.e. BMSCC > 500,000 cells/ml at least 3 consecutive records. Twelve chronic mastitis herds in Muang, Khon Kaen were data collected on 1) general herd information, 2) milking equipment, 3) milking procedure and 4) awareness and management of farmers to the mastitis problem. All possible mastitis pathogens were investigated in individual milk samples from 138 lactating cows of the herds. At least 40% of dairy herds in Muang, Khon Kaen had mastitis at …
Low Pregnancy Rate In Dairy Cattle After Fixed Time Artificial Insemination Using Norgestomet + Pgf2Α + Ecg Program During The Hot And Humid Months In Thailand, Winai Kaewlamun, Junpen Suwimonteerabutr, Thitirat Chaimee, Prachin Virakul, Mongkol Techakumphu
Low Pregnancy Rate In Dairy Cattle After Fixed Time Artificial Insemination Using Norgestomet + Pgf2Α + Ecg Program During The Hot And Humid Months In Thailand, Winai Kaewlamun, Junpen Suwimonteerabutr, Thitirat Chaimee, Prachin Virakul, Mongkol Techakumphu
The Thai Journal of Veterinary Medicine
The present study was conducted to synchronize estrus and fixed time insemination in dairy cattle during the hot and humid months (July to November) in Thailand. Thirty-four cows and heifers were treated by using norgestomet+PGF2α+equine chorionic gonadotropin (eCG) program. Norgestomet was implanted subcutaneously at the back of the ear for 10 days. PGF2α was administered IM on day 8 and one injection of eCG was given on the day of implant removal. Fixed time artificial insemination(AI) were performed twice, at about 54-60 and 70-74 h, after the eCG injection. Blood samples were collected at 22 days after AI for progesterone …
The Identification Of Kappa Casein Genotypes In The Hair Roots Of Dairy Cattle, Duangsmorn Suwattana, Chortip Aroondechachai, Jutarat Jeerasuppachok, Chatree Khatiworavage
The Identification Of Kappa Casein Genotypes In The Hair Roots Of Dairy Cattle, Duangsmorn Suwattana, Chortip Aroondechachai, Jutarat Jeerasuppachok, Chatree Khatiworavage
The Thai Journal of Veterinary Medicine
Twenty-two dairy cattle, kept at the Demonstration Farm, Department of Animal Husbandry, Faculty of Veterinary Sciences, Chulalongkorn University, Nakorn Pathom, were genotyped using hair roots, for the Kappa-casein gene, using a Polymerase Chain Reaction - Restriction Fragment Length Polymorphism (PCR-RFLP) technique. The method for obtaining total DNA was simple, requiring only the digestion of the root of the hair end in a buffer compatible with the subsequent PCR, without any prior purification or extraction step. Two types of alleles, A and B, were in the frequencies of 0.77 and 0.23, espectively. Genotypes AA, AB and BB were demonstrated with the …
A Genetic Evaluation Of Production Traits For Dairy Cattle In Thailand, Jureeratn Sanpote, Sayan Buaban
A Genetic Evaluation Of Production Traits For Dairy Cattle In Thailand, Jureeratn Sanpote, Sayan Buaban
The Thai Journal of Veterinary Medicine
A study of genetic parameters, breeding values, genetic and phenotypic trends, 305-day milk, fat and protein yields was carried out using 6,357 pedigree and milk records of Holstein Friesian crossbreds, recorded between 1990-2002, in the Master bull project database, Artificial Insemination Division. First lactations, with a lactation length of more than 150 days, were adjusted to a 305-day yield and Restricted, Maximum Likelihood (REML), estimated, variance components. Genetic parameters and breeding values were estimated using the Best Linear Unbiased Prediction (BLUP). The results showed that the average 305-day milk, fat and protein yields were 3,651.87 ± 904.97, 138.32± 39.98 and …
Prevalence Of Antibodies To Various Bovine Viruses In Bulk Tank Milk Samples From Dairy Herds In The Muaglek Area, Suneerat Aiumlamai, Stafan Alenius, Kovit Nithichai
Prevalence Of Antibodies To Various Bovine Viruses In Bulk Tank Milk Samples From Dairy Herds In The Muaglek Area, Suneerat Aiumlamai, Stafan Alenius, Kovit Nithichai
The Thai Journal of Veterinary Medicine
Bulk tank milk (BTM) samples from 160 dairy herds located in Muaglek area were tested for antibodies to Bovine Virus Diarrhoea Virus (BVDV). Of these 160 samples, 153 (95.6%) were negative for antibodies to BVDV. Seven samples (4.4%) had low levels of BVDV antibodies. Therefore, the prevalence of BVDV among the dairy cattle in this area of Thailand can be regarded as low. Forty samples were randomly selected to test for antibodies to Infectious Bovine Rhinotracheitis Virus (IBRV), Bovine Leukemia Virus (BLV), Bovine Coronavirus (BCV) and Bovine Respiratory Syncytial Virus (BRSV) and 26 (65%), 39 (98%), 37 (93%) and 25 …