Effects of clinical mastitis from calving to first service on reproductive performance in dual-purpose cows

Nava-Trujillo, Héctor; Soto-Belloso, Eleazar; Hoet, Armando E.

doi:10.1016/j.anireprosci.2010.05.014

Cited by 20 publications

(26 citation statements)

References 14 publications

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“…According to the results of the present study, occurrence of CM has a negative effect on reproductive performance of dairy cows. These findings come in accordance with those recorded in previous studies ( Elmaghraby et al, 2004;Gunay and Gunay, 2008;Nava-Trujillo et al, 2010;Yang et al, 2012). Nava-Trujillo et al (2010) reported that cows with CM needed 43 days more from calving to conception in comparison to clinically non-mastitis ones.…”

Section: Discussionsupporting

confidence: 93%

“…These findings come in accordance with those recorded in previous studies ( Elmaghraby et al, 2004;Gunay and Gunay, 2008;Nava-Trujillo et al, 2010;Yang et al, 2012). Nava-Trujillo et al (2010) reported that cows with CM needed 43 days more from calving to conception in comparison to clinically non-mastitis ones. Also, Bouamra et al (2017) found that cows with signs of clinical mastitis before the first insemination had greater calving to first insemination and calving to conception intervals than cows that exhibited CM after the first insemination or cows without signs of CM.…”

Section: Discussionsupporting

confidence: 93%

“…The higher incidence of CM is associated with lower reproductive performance. Cows with mastitis had a longer interval from calving to first artificial insemination (AI), longer days open (DO) and higher number of services per conception (SC) compared to cows with no mastitis (Ahmadzadeh et al, 2009;Nava-Trujillo et al, 2010). In a study by Bouamra et al (2017), cows with signs of CM before the first insemination had greater days to first insemination (DFI) and DO than cows that exhibited CM after the first insemination or cows without signs of CM.…”

Section: Introductionmentioning

confidence: 99%

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Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

Elmaghraby¹,

El‐Nahas²,

Fathala³

et al. 2017

AJVS

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Key words:Clinical mastitis, Reproductive Performance, Dairy CowsThe objectives of this study were to determine the incidence of clinical mastitis (CM) in relation to some risk factors and its impact on reproductive performance of Holstein cows. Lactation records (n = 1875) were obtained from Dina farms covering the period between 2013 and 2016. One third of cows (647/1875) had contracted at least one episode of CM throughout the entire lactation. Frequency of CM decreased progressively with the month of lactation, and approximately half of the cases occurred within the first three months postpartum. Incidence decreased (P<0.001) with level of milk yield, but increased (P<0.001) with parity. CM significantly (P<0.05) increased calving to first estrus (+ 7.7 days), and to calving first insemination intervals (+6.5 days) compared to non-affected ones. Furthermore, cows contracted CM before conception required 31 days more and +0.47 inseminations to conceive than cows without mastitis. In brief, CM has a negative impact on reproductive performance of Holstein cows, and its occurrence is associated with level of milk yield, lactation order and stage of lactation.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

Elmaghraby¹,

El‐Nahas²,

Fathala³

et al. 2017

AJVS

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“…Impaired reproductive performance was also reported in other studies. A recent study showed that clinical mastitis occurring before first service postpartum significantly increased the days to first service, and consequently increased days to conception (Nava-Trujilloa et al 2010). Their results suggest that the effects of clinical mastitis on reproductive performance (probably by affecting the hypothalamus-pituitary-ovary axis) in primiparous cows could be more severe, possibly due to certain characteristics of first calving cows such as more severe negative energy balance, poor dry matter intake, greater loss in body condition, lesser concentrations of glucose, insulin, and insulin-like growth factor-I.…”

Section: Discussionmentioning

confidence: 99%

Effect of mastitis during the first lactation on production and reproduction performance of Holstein cows

Moussavi

Mesgaran

Gilbert

2012

Trop Anim Health Prod

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The aim of this study was to evaluate the effect of postpartum mastitis between first calving and subsequent conception on production and reproduction performance as well as culling of Holstein cows. A data set of 9,183 first lactation cows was used. Results showed that the first cumulative 100 days' milk production and the milk yield standardized to 305 days were affected by the interval from calving to first mastitis (P<0.05). Cows with one episode of mastitis produced more milk than those with repeated episodes of mastitis (P < 0.01). Increase in the number of mastitis episodes and also decrease in interval between first calving and mastitis increased services per conception (P<0.001). Mastitis episode and the interval between calving and first mastitis had no apparent impact on the calving to conception interval (P>0.05). Calving year, calving difficulty score, and cumulative first 60 days milk production had significant impacts on mastitis risk (P<0.05). The interval from calving to the first incidence of mastitis decreased over the period studied (P<0.001). Productive life tended to be decreased due to mastitis (P00.07). Survival analysis showed a significant difference between the lengths of productive life for cows with different intervals from calving to first mastitis (P<0.01). The results demonstrated that clinical mastitis between first calving and conception reduced production and reproduction performance with an increase in chance of culling.

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“…These researchers demonstrated this negative relationship as, the alteration in estrus cycle duration and the decline in the length of the luteal phase in cows suffering from clinical mastitis. More recently, Nava Trujillo et al (2010) and Yang et al (2012) found that the incidence of clinical mastitis at the beginning of lactation reduced reproductive performance by, increasing the calving to first insemination interval, calving to conception interval and decreasing conception rate in the first insemination.…”

Section: Introductionmentioning

confidence: 99%

Factors affecting reproductive performance of dairy cow in Algeria: Effects of clinical mastitis

Bouamra¹,

Ghozlane²,

Ghozlane³

2017

Afr. J. Biotechnol.

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Effects of clinical mastitis from calving to first service on reproductive performance in dual-purpose cows

Cited by 20 publications

References 14 publications

Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

Effect of mastitis during the first lactation on production and reproduction performance of Holstein cows

Factors affecting reproductive performance of dairy cow in Algeria: Effects of clinical mastitis

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