Östrüs Belirlemedeki Yetersizlikler ve Çözüm Stratejileri

Yazarlar

Serdal Kurt
https://orcid.org/0000-0002-0191-3245

Özet

Süt sığırcılığında üreme başarısı ve işletme karlılığı için hayati öneme sahip olan östrüs tespiti, geleneksel gözleme dayalı yöntemler ve güncel teknolojik yaklaşımlarla gerçekleştirilmektedir. Östrüs döneminde ineklerde ayakta durma, çara akıntısı, huzursuzluk ve aktivite artışı gibi davranışsal ve fizyolojik belirtiler gözlenmektedir. Geleneksel görsel takip yöntemi özellikle büyük işletmelerde zaman alıcı, yoğun iş gücü gerektiren ve personelin deneyimine bağlı olarak hata payı yüksek bir süreçtir; bu durum kaçırılan östrüs başına ciddi ekonomik kayıplara yol açmaktadır. Bu yetersizlikleri aşmak amacıyla büyük sürülerde yüksek doğruluk oranına sahip pedometre ve akselerometre gibi hareket sensörleri, basınç dedektörleri, sıcaklık ölçüm cihazları, vajinal mukus direnci takipleri, otomatik progesteron biyosensörleri ile video kayıt sistemleri gibi çeşitli teknolojik altyapılar geliştirilmiştir. Ayrıca östrüs takibi ihtiyacını tamamen ortadan kaldırmak ve personel hatalarını en aza indirmek için hormonal protokolleri içeren östrüs senkronizasyonu stratejileri de başarıyla uygulanmaktadır.

Efficient estrus detection, which is crucial for reproductive success and economic profitability in dairy farming, is performed through traditional observation-based methods and contemporary technological approaches. During estrus, cows display behavioral and physiological signs such as standing heat, clear vaginal mucus discharge, restlessness, and increased physical activity. Traditional visual monitoring is time-consuming, labor-intensive, and highly prone to human error, particularly in large herds, resulting in significant economic losses for each missed estrus period. To overcome these limitations, various automated technologies with high accuracy rates have been developed for large-scale operations, including pedometers and accelerometers for activity monitoring, radiotelemetric pressure detectors, body and milk temperature measurements, vaginal mucus electrical resistance sensors, automated progesterone biosensors, and video recording with automated image analysis. Furthermore, estrus synchronization strategies based on targeted hormonal protocols are effectively implemented to eliminate the need for routine estrus detection and minimize management-related errors, thereby enhancing overall reproductive efficiency in dairy cattle herds.

Referanslar

Roelofs J, Lopez-Gatius F, Hunter RHF, et al. When is a cow in estrus? Clinical and practical aspects. Theriogenology, 2010; 74(3): 327-344.

Santos CAD, Landim NMD, Araújo HXD, et al. Automated Systems for Estrous and Calving Detection in Dairy Cattle. AgriEngineering, 2022; 4(2): 475-482.

Forde N, Beltman ME, Lonergan P, et al. Oestrous cycles in Bos taurus cattle. Animal reproduction science, 2011; 124(3-4): 163-169.

Palomares RA. Estrus Detection. Bovine Reproduction, 2021;431-446.

Cengiz M, Tohumcu V. Sütçü ineklerde östrus siklusunun, foliküler gelişimin ve ovulasyonun hormonal kontrolü. Veteriner Farmakoloji ve Toksikoloji Derneği Bülteni, 2021;12(3): 168-180.

Kafi FM, Rahbari A, Zibaei M. Accuracy of oestrus detection in cows and its economic impact on Shiraz dairy farms. Iranian journal of eterinary research. 2007; 8(2): 131-135

Reith S, Hoy S. Behavioral signs of estrus and the potential of fully automated systems for detection of estrus in dairy cattle. Animal, 2018; 12(2): 398-407.

Adenuga AH, Jack C, Olagunju KO, et al. Economic viability of adoption of automated oestrus detection technologies on dairy farms: A review. Animals, 2020; 10(7): 1241.

Codl R, Ducháček J, Vacek M, et al. Relationship between daily activities duration and oestrus in dairy cows over the year. Acta Veterinaria Brno, 2022; 91(1): 11-16.

Inchaisri C, Jorritsma R, Vos PL, et al. Economic consequences of reproductive performance in dairy cattle. Theriogenology, 2010; 74(5): 835-846.

Orihuela A. Some factors affecting the behavioural manifestation of oestrus in cattle: a review. Applied Animal Behaviour Science, 2000; 70(1): 1-16.

Fesseha H, Degu T. Estrus detection, Estrus synchronization in cattle and it’s economic importance. International Journal of Veterinary Research, 2020; 3(1): 1-9

Silper BF, Madureira AML, Kaur M, et al. Comparison of estrus characteristics in Holstein heifers by 2 activity monitoring systems. Journal of dairy science, 2015; 98(5): 3158-3165.

Saint‐Dizier M, Chastant‐Maillard S. Towards an automated detection of oestrus in dairy cattle. Reproduction in domestic animals, 2012; 47(6): 1056-1061.

Arney DR, Kitwood SE, Phillips CJC. The increase in activity during oestrus in dairy cows. Applied Animal Behaviour Science, 1994; 40(3-4): 211-218.

Yazlık MO, Çolakoğlu HE, Polat İM, et al. Rumination time and physical activity monitoring, milk yield changes around estrus and first service pregnancy rate in dairy cows assigned to voluntary waiting period. Israel Journal of Veterinary Medicine, 2018; 73(3): 8-13.

Diskin MG, Sreenan JM. Expression and detection of oestrus in cattle. Reproduction Nutrition Development, 2000; 40(5): 481-491.

Moore SG, Aublet V, Butler ST. Monitoring estrous activity in pasture-based dairy cows. Theriogenology, 2021; 160: 90-94.

Van Eerdenburg, FJCM. Estrus detection in dairy cattle: How to beat the bull. Vlaams Diergeneeskundig Tijdschrift, 2006; 75(2A): 61-69.

Maatje K, Loeffler SH, Engel B. Predicting optimal time of insemination in cows that show visual signs of estrus by estimating onset of estrus with pedometers. Journal of Dairy Science, 1997; 80(6): 1098-1105.

Mičiaková M, Strapák P, Szencziová I, et al. Several methods of estrus detection in cattle dams: a review. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 2018; 66(2): 619-625.

Shahriar MS, Smith D, Rahman A, et al. Detecting heat events in dairy cows using accelerometers and unsupervised learning. Computers and Electronics in Agriculture, 2016; 128: 20-26.

Puig A, Ruiz M, Bassols M, et al. Technological Tools for the Early Detection of Bovine Respiratory Disease in Farms. Animals, 2022; 12(19), 2623.

Nebel RL, Dransfield MG, Jobst SM, et al. Automated electronic systems for the detection of oestrus and timing of AI in cattle. Animal Reproduction Science, 2000; 60: 713-723.

Mayo LM, Silvia WJ, Ray DL, et al. Automated estrous detection using multiple commercial precision dairy monitoring technologies in synchronized dairy cows. Journal of dairy science, 2019; 102(3): 2645-2656.

Yoshioka K, Higaki S, Ozawa T, et al. Early detection of livestock diseases by using wearable wireless sensors. FFTC Agricultural Policy Platform (FFTC-AP), 2019.

Firk R, Stamer E, Junge W, et al. Automation of oestrus detection in dairy cows: a review. Livestock Production Science, 2002; 75(3): 219-232.

Higaki S, Miura R, Suda T, et al. Estrous detection by continuous measurements of vaginal temperature and conductivity with supervised machine learning in cattle. Theriogenology, 2019; 123: 90-99.

Rorie RW, Bilby TR, Lester TD. Application of electronic estrus detection technologies to reproductive management of cattle. Theriogenology, 2002; 57(1): 137-148.

Meena RS, Sharma SS, Purohit GN. Efficiency of vaginal electrical resistance measurements for oestrous detection and insemination in Rathi cows. Animal Science, 2003; 76(3), 433-437.

Delwiche M, Tang X, Bondurant R, et al. Estrus detection with a progesterone biosensor. Transactions of the ASAE, 2001; 44(6): 2003.

Bruyère P, Hétreau T, Ponsart C, et al. Can video cameras replace visual estrus detection in dairy cows?. Theriogenology, 2012; 77(3): 525-530.

Xu ZZ, Burton LJ. Estrus synchronization of lactating dairy cows with GnRH, progesterone, and prostaglandin F2α. Journal of dairy science, 2012; 83(3): 471-476.

Gelecek

14 Ocak 2023

Lisans

Lisans