Effects of stillbirth and dystocia on subsequent reproductive performance in Japanese Black cattle

Sasaki, Yosuke; Uematsu, Mizuho; Kitahara, Go; Osawa, Takeshi; Sueyoshi, Masuo

doi:10.1016/j.tvjl.2014.03.004

Cited by 24 publications

(17 citation statements)

References 6 publications

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“…Similar to the results of this study, Dematawewa and Berger () observed negative effect of dystocia on DO, and Sasaki et al. () reported inferior reproductive performance of Japanese black cattle after dystocia. Cows experiencing difficulty at birth are more likely to suffer from postpartum diseases such as metritis, retained placenta and milk fever (Benzaquen et al., ).…”

Section: Resultssupporting

confidence: 90%

“…Tenhagen et al (2007) reported no significant effect of mild dystocia on the reproductive performance of the cows, but cows with severe dystocia conceived later and were more likely to be open by 200 days in milk. Similar to the results of this study, Dematawewa and Berger (1997) observed negative effect of dystocia on DO, and Sasaki et al (2014) reported inferior reproductive performance of Japanese black cattle after dystocia. Cows experiencing difficulty at birth are more likely to suffer from postpartum diseases such as metritis, retained placenta and milk fever (Benzaquen et al, 2007).…”

Section: Resultssupporting

confidence: 89%

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Effect of dystocia on subsequent reproductive performance and functional longevity in Holstein cows

Hossein-Zadeh

2016

Animal Physiology Nutrition

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The objective of this study was to evaluate the effect of dystocia on the reproductive performance and functional longevity in Iranian Holsteins. Data consisted of 1 467 064 lactation records of 581 421 Holstein cows from 3083 herds which were collected by the Animal Breeding Center of Iran from April 1987 to February 2014. Reproduction traits in this study included interval from first to second calving, days open and days from first calving to first service. The generalized linear model was used for the statistical analysis of reproductive traits. Survival analysis was performed using the Weibull proportional hazards models to analyse the impact of dystocia on functional longevity. The incidence of dystocia had an adverse effect on the reproductive performance of dairy cows. Therefore, reproductive traits deteriorated along with increase in dystocia score (p < 0.05). The culling risk was increased along with increase in the score of dystocia (p < 0.0001). The greatest culling risk was observed in primiparous cows, small herds and low-yielding cows (p < 0.0001). Also, the lowest culling risk was found for cows calving at the youngest age (<27 months), and cows with age at first calving >33 months had the greatest risk (p < 0.0001). The results of current study indicated that dystocia had important negative effects on the reproductive performance and functional longevity in dairy cows, and it should be avoided as much as possible to provide a good perspective in the scope of economic and animal welfare issues in dairy herds.

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Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 89%

Effect of dystocia on subsequent reproductive performance and functional longevity in Holstein cows

Hossein-Zadeh

2016

Animal Physiology Nutrition

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“…An increased incidence of calving difficulty during winter has previously been reported in Japanese Black cattle (Uematsu, Sasaki, Kitahara, Sameshima, & Osawa, ), and this has been associated with a subsequent decrease in reproductive performance (Laster, Glimp, Cundiff, & Gregory, ; Sasaki, Uematsu, Kitahara, Osawa, & Sueyoshi, ). Therefore, it is possible that calving difficulty contributed to the reduced reproductive performance during the cold season in the studied areas.…”

Section: Discussionmentioning

confidence: 81%

Impaired reproduction in Japanese Black cattle under cold environmental conditions

Nabenishi

Yamazaki

2017

Reprod Domestic Animals

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Environmental factors such as the temperature-humidity index (THI) are known to affect reproductive parameters in cattle. Therefore, here, we examined whether there was any correlation between the THI and the reproductive performance of Japanese Black cattle by analysing the first-service conception rates of 178,492 artificially inseminated cows across 9,833 herds in south-western Japan over a 3-year period. The daily mean (±SD) THI over the study period was 63.6 ± 11.3 (range: 41.4-81.5). The calving to first artificial insemination (AI) interval was significantly negatively correlated with THI in the month of AI (r = -.75, p < .001), whereas conception rate to first AI (CRFA) showed a cyclical change that did not correspond with that of THI, resulting in a time lag between CRFA and THI in the month of AI. Furthermore, there was a stronger correlation between CRFA and THI between 3 and 2 months before AI (r = .76 vs. .83, p < .001) than in the month of AI (r = .34, p = .04). Therefore, this extensive field study showed that a decrease in THI was associated with declined reproductive performance in Japanese Black cattle and that the impact of the cold environment on the conception rate is attributable to a carryover effect from the cold season before AI rather than conditions at the time of AI.

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“…DYS has been defined as a difficult birth resulting in prolonged calving or severe assisted extraction of the calf at birth but assisted calving has been defined as a birth in which assistance is required (e.g., correction of malposition), but this may not necessarily result in DYS (Mee, 2004). According to Sasaki et al (2014), DYS is a calving that requires veterinary assistance. Others have defined DYS as births that were reported as requiring considerable force or extremely difficult for calving difficulty score rated on a 1 to 5 scale (Norman et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows

Goli¹

2018

BJVM

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Dystocia (DYS) is an important problem in Holstein cattle and imposes important economic losses on cattle producers. The etiologies and types of DYS are various and different factors can influence its incidence. In the present study, incidence of different types of dystocia was investigated in different seasons and parities in Holstein cows. One hundred and eighty two primi-and multiparous cows with DYS were included in the study. The results showed significantly more calf births in anterior presentation to first-calf heifers compared to those born to cows in parities 2-3 or ≥ 4 (P≤0.05). There was no significant difference in the number of calves born in anterior presentation between cows in parities 2-3 and those in parities ≥4 (P>0.05). Also, significantly more dystocia cases were encountered in first-calf heifers compared with those in cows in parities 2-3 or ≥4 (P≤0.05) but there was no significant difference in this regard between the cows in parities 2-3 and those in parities ≥4 (P>0.05). In addition, the results revealed that DYS due to foetopelvic disproportion (FPD) mostly affected the primiparous cows and that the multiparous cows were mostly affected by dystocia due to twin birth (TB), uterine inertia (UI) and uterine torsion (UT). Moreover, the results showed that significantly most DYS cases occurred during winter compared with spring, summer or autumn (P≤0.05), of which the majority was due to FPD. On the other hand, the least DYS cases were observed in summer months, of which the majority was again due to FPD. Finally, there was no significant difference in the overall incidence of dystocia between spring, summer and autumn (P>0.05).

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Effects of stillbirth and dystocia on subsequent reproductive performance in Japanese Black cattle

Cited by 24 publications

References 6 publications

Effect of dystocia on subsequent reproductive performance and functional longevity in Holstein cows

Effect of dystocia on subsequent reproductive performance and functional longevity in Holstein cows

Impaired reproduction in Japanese Black cattle under cold environmental conditions

Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows

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