Days in Milk at First AI in Dairy Cows; Its Effect on Subsequent Reproductive Performance and Some Factors Influencing It

Yusuf, Muhammad; Nakao, Toshihiko; Yoshida, Chikako; Long, Su Thanh; Gautam, Gokarna; Ranasinghe, Rms Bimalka Kumari; Koike, Kana; Hayashi, Akimune

doi:10.1262/jrd.10-097t

Cited by 23 publications

(18 citation statements)

References 32 publications

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“…Yusuf et al [24] noted a positive effect of the increasing interval between insemination and calving on first insemination success. They obtained SPC of 1.9-2.4 semen doses, with the highest values found in the early lactation periods (up to 60 days), which corresponds with our findings.…”

Section: Discussionmentioning

confidence: 99%

Effect of Some Factors on Number of Services per Conception in Dairy Cows

Siatka¹,

Sawa²,

Krężel-Czopek³

et al. 2017

J Vet Sci Technol

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The study involved 55 685 Polish Holstein-Friesian cows whose services per conception (SPC) averaged 2.2. Statistical analysis performed using the GLM procedure of SAS, showed significant differences in SPC value within different factors. The greatest changes were associated with daily milk yield of the cows; as it increased from ≤ 20 kg to >40 kg, the number of services required to conceive increased by 0.6. SPC value deteriorated also with an increasing number of cows in the herd (by 0.37) and with an increase in milk somatic cell count, being indicative of mastitis (by 0.11). The opposite situation existed for an increase in herd production level and lengthening of the interval between calving and first insemination (decrease of SPC by 0.31). It was also found that summer was the least favourable period for insemination and winter the most favourable (SPC=2.28 vs 2.16). Analysis of the results demonstrates that it is necessary and appropriate to account for these factors when aiming to improve cow fertility.

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Section: Discussionmentioning

confidence: 99%

Effect of Some Factors on Number of Services per Conception in Dairy Cows

Siatka¹,

Sawa²,

Krężel-Czopek³

et al. 2017

J Vet Sci Technol

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“…This finding of improved reproductive performance with increasing period from calving to AI is consistent with the study by Cutullic et al (2012), who compared dairy cows at different levels of feeding and milk yield. In the study by Yusuf et al (2011) the first AI conception rate increased linearly up to 100 days in milk. Larsson and Berglund (2000) compared a herd which was managed for 12or 15-month calving intervals with a herd managed for 12-or 18-month intervals.…”

Section: Discussionmentioning

confidence: 93%

Evaluation of vaginal discharge with the Metricheck device and the relationship to reproductive performance in postpartum dairy cows

Lambertz

Völker

Janowitz³

et al. 2014

Animal Science Journal

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Vaginal mucus during estrus was examined with the Metricheck device and the relationship to the reproduction of high-yielding dairy cows was studied. The study was conducted in 99 dairy herds located in Western Germany and 1348 Holstein-Friesian heifers and cows showing spontaneous estrus were examined. Independent of the Metricheck result, the animals were inspected by professional insemination technicians and those suitable for insemination (n = 989) were bred by artificial insemination (AI). Reproductive performance was characterized by non-return rate at 90 days (NRR90). The discharge of the animals predominantly had a clear appearance (70%) and a stringy consistency (80%). Animals with clear vaginal discharge had higher NRR90 (56%; n = 697) than animals with abnormal (turbid, mucopurulent, purulent, sanguineous) vaginal secretion (48%, n = 292; P < 0.05). NRR90 was lower in animals with short calving to AI interval (< 70 days; 39%) than with medium (70-130 days; 54%) or long (> 130 days; 62%) intervals (P < 0.05). NRR90 decreased by 12% from the lowest (< 15 kg) to the highest (> 45 kg) milk yield class. In conclusion, the use of the Metricheck device integrated into the insemination procedure is recommended to identify dairy cows suffering severely from uterine disease.

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“…The causes of delayed first AI after calving in the present study were not fully understood and it is necessary to find out the factors contributed in. Previous studies reported that the causes of delayed first AI after calving in dairy cows include management and the cow factors (Yusuf et al, 2011), in which could be break down to the factors such as extended voluntary waiting period (Arbel et al, 2001), infection of the reproductive tract (Dohoo, 1983;Gilbert et al, 2005;Yusuf et al, 2011), season of calving, herd and parity (Darwash et al, 1997;Yusuf et al, 2011), abnormal resumption of ovarian cycle (Lamming & Darwash, 1998;Yusuf et al, 2006;Yusuf et al, 2011), and negative energy balance (Lucy, 2001;Wiltbank et al, 2006). In this study, all cows were housed using tie-stall.…”

Section: Reproductive Performance Of Dairy Cowsmentioning

confidence: 99%

“…This probably caused an extension of DIM at first AI. Cows in tie-stall herds have a significantly longer DIM at first AI in comparison with free-stall herds (Yusuf et al, 2011) and have a lower fertility index (Valde et al, 1997). Increased cow comfort in free-stall herds probably contributed to optimizing DIM at first AI (Bewley et al, 2001;Yusuf et al, 2011).…”

Section: Reproductive Performance Of Dairy Cowsmentioning

confidence: 99%

“…Cows in tie-stall herds have a significantly longer DIM at first AI in comparison with free-stall herds (Yusuf et al, 2011) and have a lower fertility index (Valde et al, 1997). Increased cow comfort in free-stall herds probably contributed to optimizing DIM at first AI (Bewley et al, 2001;Yusuf et al, 2011). Since there were so many factors can contribute to the delayed first AI after calving, it was difficult to generalized as to predominant causes, therefore, each cow must be considered individually.…”

Section: Reproductive Performance Of Dairy Cowsmentioning

confidence: 99%

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Distribution of Cows by Days in Milk (DIM) at First AI and Calving to Conception Interval in Dairy Cows

Yusuf¹,

Toleng²,

Syafar³

2012

Med Pet

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The objective of this study was to show the distribution of cows by days in milk (DIM) at first artificial insemination (AI) and the interval from calving to conception. The study was conducted in 47 commercial dairy herds in Enrekang Regency from May to October 2011. Of 289 animals, 143 of them or 49.5% were dairy Holstein Friesian cows with parities one to seven; mean (±SD) 2.05±1.50. The cows were classified into six groups based on DIM at first AI; within 40 d postpartum, between 41 and 85 d, 86 and 115 d, 116 and 150 d, 151 and 210 d, and 211 days or more. The cows were classified into five groups based on the interval from calving to conception; within 85 d postpartum, 86 and 115 d, 116 and 150 d, 151 and 210 d, and 211 days or more. The results of this study showed that the interval from calving to first AI was 131.6±121.8 d. The percentage of cows inseminated within 85 d after calving was only 56.1%; significantly lower (P<0.01) than the percentage in the list of fertility management assessment standard. Likewise, cows conceived within 150 d after calving was only 32%. In conclusion, a longer average days in milk (DIM) at first AI in dairy cows was found in the present study, subsequently reduced the possibility of the cows to become pregnant in an optimum time, and reduced the reproductive performance of the herds.

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Days in Milk at First AI in Dairy Cows; Its Effect on Subsequent Reproductive Performance and Some Factors Influencing It

Cited by 23 publications

References 32 publications

Effect of Some Factors on Number of Services per Conception in Dairy Cows

Effect of Some Factors on Number of Services per Conception in Dairy Cows

Evaluation of vaginal discharge with the Metricheck device and the relationship to reproductive performance in postpartum dairy cows

Distribution of Cows by Days in Milk (DIM) at First AI and Calving to Conception Interval in Dairy Cows

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