Effects of Twinning on Lactation and Days Open in Holsteins

Chapin, Carmen T.; Vleck, L.D. Van

doi:10.3168/jds.s0022-0302(80)83155-9

Cited by 30 publications

(20 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The longest interval from parturition to the next conception in spring is probably because of the delay in the breeding of dairy cows in the summer months (because of the heat stress, lower conception rate and poorer condition of nutrition). Consistent with the results of this study, previous studies reported the longer interval from parturition to conception for twin calvings than single ones (Chapin and Van Vleck, 1980;Gregory et al, 1990b;Eddy et al, 1991). Echternkamp and Gregory (1999) observed that the interval from parturition to first oestrus was shorter for dams birthing and nursing a single (56.9 days) than for dams birthing twins and nursing one (68.5 days) or two (69.6 days) calves.…”

Section: Open Dayssupporting

confidence: 92%

The effect of twinning on milk yield, dystocia, calf birth weight and open days in Holstein dairy cows of Iran

Hossein-Zadeh

2010

Journal of Animal Physiology and Animal Nutrition

View full text Add to dashboard Cite

Calving records of Iranian Holsteins from April 1998 to September 2006 comprising 16 herds with 104,572 calving events representing 4045 twin births were used to evaluate reported open days, calving difficulties and calf birth weight in single- and twin-births and the relationship exists between twinning and milk production. A logistic regression model was constructed to analyse dystocia for single- and twin-births. In addition, statistical analyses of 305-day milk yield, open days and calf birth weight were performed using the general linear models procedure. The odds of dystocia was greater after twin births [p < 0.0001; odds ratio (OR) = 2.32]. The odds of dystocia decreased from parity 1 to parity 2 and beyond (p < 0.0001; OR = 0.44). Open days were significantly different between single (129.28 days) and twin (144.88 days) births (p < 0.05). Calf birth weights were significantly greater for singletons than twins (43.33 kg vs. 34.36 kg; p < 0.05). In addition, twin-calved cows had greater 305-day milk production than single-calved cows (p < 0.05). In general, development of practical management strategies to cope with the negative effects associated with twinning on dairies is critical, especially if the trend towards increased twinning in the dairy cattle population continues.

show abstract

Section: Open Dayssupporting

confidence: 92%

The effect of twinning on milk yield, dystocia, calf birth weight and open days in Holstein dairy cows of Iran

Hossein-Zadeh

2010

Journal of Animal Physiology and Animal Nutrition

View full text Add to dashboard Cite

show abstract

“…The median calving-to-conception interval for cows that had live twins was 220 days and was 250 days if at least 1 twin was stillborn, compared with 175 days for cows that had singletons. Previous studies 5,14,15 also found that the mean calving-to-conception interval as well as inseminations per conception were increased for cows that had twins. Twin parturitions increase the risk of several diseases that are risk factors for impaired reproductive performance, such as retained fetal membranes, metritis, and abortion.…”

Section: Discussionmentioning

confidence: 78%

Effect of twin birth calvings on milk production, reproductive performance, and survival of lactating cows

Cheong¹,

Galvão²,

Warnick³

et al. 2007

javma

View full text Add to dashboard Cite

show abstract

“…Several factors may be responsible for these results. For example, twinning, as a causal factor for stillbirth (Silva del Río et al, 2007) is higher in multiparous cows (Cady and Van Vleck, 1978;Silva del Río et al, 2007) which in turn leads to a reduction in milk production (Chapin and Van-Vleck, 1980). In addition, higher-producing cows had greater reduction in milk yield due to health disorders such as mastitis (Rajala-Schultz et al, 1999) and this may also be the case for cows producing stillborn calves.…”

Section: Resultsmentioning

confidence: 99%

Performance and financial consequences of stillbirth in Holstein dairy cattle

Mahnani

Sadeghi-Sefidmazgi

Keshavarzi

2018

Animal

View full text Add to dashboard Cite

Stillbirth is an economically important trait on dairy farms. Knowledge of the consequences of, and the economic losses associated with stillbirth can help the producer when making management decisions. The objectives of this study were to determine the effects of stillbirth on productive and reproductive performance as well as financial losses due to stillbirth incidence in Iranian Holstein dairy farms. Economic and performance data were collected from nine Holstein dairy farms in Isfahan and Khorasan provinces of Iran from March 2008 to December 2013. The final data set included 160 410 calving records from 53 265 cows. A linear mixed model was developed to evaluate the effects of stillbirth on performance of primiparous and multiparous cows separately and overall. An economic model was used to estimate the economic losses due to stillbirth. The incidence of stillbirth cases per cow per year was 4.2% on average (3.4% to 6.8% at herd level). The least square means results showed that a case of stillbirth significantly (P0.05). Overall, a case of stillbirth reduced 305-day milk yield by 544.0±76.5 kg/cow per lactation. Stillbirth had no significant effects on 305-day fat and protein percentages in either primiparous or multiparous cows. Overall, cows that gave birth to stillborn calves had significantly increased days open by 14.6±2.6 days and the number of inseminations per conception by 0.2 compared with cows that gave birth to live calves (P<0.01). In general, the negative productive and reproductive effects associated with stillbirth were smaller and non-significant for primiparous cows compared with multiparous cows. The financial losses associated with stillbirth incidence averaged US$ 938 per case (range from $US 767 to $US 1189 in the nine investigated farms). The loss of a calf was not the only cost associated with stillbirth, as it accounted for 71.0% of the total cost. The costs of dystocia (7.6%) and culling and replacement expenses (6.3%) were the next most important costs associated with stillbirth. These results can be used to assess the potential return from management strategies to reduce the occurrence of stillbirths.

show abstract

Effects of Twinning on Lactation and Days Open in Holsteins

Cited by 30 publications

References 9 publications

The effect of twinning on milk yield, dystocia, calf birth weight and open days in Holstein dairy cows of Iran

The effect of twinning on milk yield, dystocia, calf birth weight and open days in Holstein dairy cows of Iran

Effect of twin birth calvings on milk production, reproductive performance, and survival of lactating cows

Performance and financial consequences of stillbirth in Holstein dairy cattle

Contact Info

Product

Resources

About