Estrous detection with an activity and rumination monitoring system in an organic grazing and a low-input conventional dairy herd

Pereira, G.M.; Heins, Brad; Endres, Márcia I.

doi:10.1016/j.anireprosci.2020.106553

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…As in our case, while examining the effectiveness of the AHD device in Holstein cows, Marques et al (2020) found that due to AHD application, high-yielding cows were 6% more likely to be successfully fertilised after the first insemination, while no significant differences were observed between the groups of low-yielding cows. The activity monitoring system also had good results in detecting heat in pasture conditions (Pereira et al, 2020). In our study, the fertilisation of heifers using AHD increased by 9% compared to animals in which heat was detected by visual observation.…”

Section: Discussionmentioning

confidence: 50%

Učinkovitost sustava automatske detekcije tjeranja u junica smeđeg goveda kada se rabi seksirano sjeme na velikoj farmi mliječnih goveda

Mylosyvyi,

Skliarov,

Izhboldina

et al. 2023

Vet. stn. (Online)

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The identification of cows and heifers in heat and their timely artificial insemination (AI) is an important issue for large dairy units. The objective of the research was to study the efficiency of insemination of oestrous Brown Swiss heifers using am automated heat detection system (AHD) compared to heat detection by visual observation (VO). The AHD system application increased the fertility of heifers by 8.9% when using conventional semen (unsexed) and by 14.4% using sexed semen. The number of services per conception when using sexed semen decreased from 3.7±1.08 with VO to 2.4±0.68 with AHD. Two-factor analysis of variance showed that an 89% effect of managerial decisions such as the detection of heifers in heat by means of AHD and the use of sexed semen on the efficiency of insemination. This study showed that professional breeders and veterinarians should pay particular attention to AI management when making these managerial decisions in large dairy units.

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Section: Discussionmentioning

confidence: 50%

Učinkovitost sustava automatske detekcije tjeranja u junica smeđeg goveda kada se rabi seksirano sjeme na velikoj farmi mliječnih goveda

Mylosyvyi,

Skliarov,

Izhboldina

et al. 2023

Vet. stn. (Online)

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“…Marques et al (2020) report a higher probability of cow fertilization after the first insemination due to a device for automatic detection of oestrus. According to other reports (Pereira et al 2020), the activity and rumination monitoring system also provided promising results in detecting oestrus in pasture conditions.…”

Section: ________________________________________________________________________________ Mylostyvyi and Izhboldina (2021)mentioning

confidence: 83%

Problems of livestock reproduction with a focus on climate change

Mylostyvyi

Izhboldina

2021

Multi

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“…Furthermore, some herds may have treated more minor health issues more aggressively [ 9 ]. Some of the herds had activity and rumination monitoring systems [ 46 ] which may have assisted the workers on farm to detect more health disorders and more estrus events to increase fertility of cows [ 47 , 48 , 49 ]. Additionally, herds may have used more preventative treatments, vaccinations, or feed supplements to reduce health disorders of cows [ 9 ].…”

Section: Resultsmentioning

confidence: 99%

Health Treatment Cost of Holsteins in Eight High-Performance Herds

Donnelly

Hazel

Hansen

et al. 2023

Animals

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Health treatments of Holstein cows (n = 2214) were recorded by the owners of eight high-performance dairy herds in Minnesota. Cows calved from March 2008 to October 2015, and 14 types of health treatments were uniformly defined across the herds. Specific types of health treatment were subsequently assigned a cost based on the mean veterinary cost obtained from the veterinary clinics that serviced the eight herds. A fixed labor cost for time (USD 18/h) associated with specific types of health treatment was determined based on interviews with the herd owners and was added to the veterinary cost. Health treatment cost was then partitioned into five health categories: mastitis (including mastitis diagnostic test), reproduction (cystic ovary, retained placenta, and metritis), lameness (hoof treatments), metabolic (milk fever, displaced abomasum, ketosis, and digestive), and miscellaneous (respiratory, injury, and other). Lactations of cows were divided into six intervals that corresponded with stage of lactation based on days in milk. The first interval of lactation was 30 days in length, followed by four intervals of 60 days each, and the final interval started on day 271 and had variable length because it continued to the end of lactation and included the dry period. Health treatment cost was summed within each interval of lactation and subsequently across lactations by parity. Statistical analysis by parity included the fixed effects of herd, interval, and the interaction of herd and interval, with interval regarded as a repeated measure of cows. Health treatment cost was highest during the first interval for all five parities of cows and ranged from USD 22.87 for first parity to USD 38.50 for fifth parity. Reproduction treatment cost was about one-half of the total health treatment cost during the first interval in all five parities. Metabolic treatment cost during the first interval ranged from USD 3.92 (in first parity) to USD 12.34 (in third parity). Compared to the other health categories, mastitis treatment cost was most evenly distributed across intervals of lactation in all parities. Lameness treatment cost was highest during mid- or late-lactation across parities and reflected the time when cows received routine hoof trimming. Additionally, treatment cost across health categories was summed across intervals of lactation for each cow, and the total health cost of cows varied substantially from herd to herd and ranged from USD 23.38 to USD 74.60 for first parity and usually increased with parity.

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Estrous detection with an activity and rumination monitoring system in an organic grazing and a low-input conventional dairy herd

Cited by 5 publications

References 17 publications

Učinkovitost sustava automatske detekcije tjeranja u junica smeđeg goveda kada se rabi seksirano sjeme na velikoj farmi mliječnih goveda

Učinkovitost sustava automatske detekcije tjeranja u junica smeđeg goveda kada se rabi seksirano sjeme na velikoj farmi mliječnih goveda

Problems of livestock reproduction with a focus on climate change

Health Treatment Cost of Holsteins in Eight High-Performance Herds

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