Elevated plasma haptoglobin concentrations following parturition are associated with elevated leukocyte responses and decreased subsequent reproductive efficiency in multiparous Holstein dairy cows

2015 ◽  
Vol 164 (1-2) ◽  
pp. 16-23 ◽  
Author(s):  
Cameron R. Nightingale ◽  
Matthew D. Sellers ◽  
Michael A. Ballou
Keyword(s):  
Dairy Cows ◽  
Reproductive Efficiency ◽  
Elevated Plasma ◽  
Plasma Haptoglobin ◽  
Holstein Dairy Cows

Effect of first 60-day cumulative milk yield on days open in Holstein dairy cows in Iran

2007 ◽  
Vol 2007 ◽  
pp. 148-148
Author(s):  
A. Heravi Moussavi ◽  
M. Danesh Mesgaran ◽  
T. Vafa
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Dairy Farm ◽  
Reproductive Efficiency ◽  
Root Cause ◽  
Principal Factors ◽  
Days Open ◽  
Holstein Dairy Cows

Reproduction and milk production are the principal factors that are influencing dairy farm profitability. The dairy industry in Iran has changed dramatically in the last decade. The shift toward more productive cows and larger herds in Iran is associated with a decrease reproductive efficiency (Heravi Moussavi et al., 2004). Increased knowledge about the principal causes of reduced fertility is essential. The root cause of the declining fertility is probably a combination of a variety of physiological and management factors that have an additive effect on reproductive efficiency. Dairy cattle are inseminated and pregnancy is established while dairy cows are lactating. Based on the analyses of large datasets, there is clearly an antagonistic relationship between milk production and reproduction in dairy cattle (Lucy, 2001). It was shown that the hazard ratio for cumulative first 60-day milk yield and conception in high producer cows was 8 percent less than the others and also high milk yield was a risk factor for several reproductive disorders (Grohn and Rajala-Schultz, 2000). The objective of this study was to evaluate the effect of first 60-day cumulative milk yield on days open in Iranian Holstein dairy cows.

Effect of different calving classes in the first calving on subsequent milk production in Holstein dairy cows

2009 ◽  
Vol 2009 ◽  
pp. 132-132
Author(s):  
A Heravi Moussavi ◽  
M Danesh Mesgaran
Keyword(s):  
Risk Factor ◽  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Production ◽  
Pregnancy Loss ◽  
Dairy Farms ◽  
Reproductive Efficiency ◽  
The Impact ◽  
Holstein Dairy Cows

Revenue from dairy farms is directly dependent upon reproductive efficiency because it affects milk production and the number of calves born (Thurmond et al., 1990). Pregnancy loss can have devastating effects on economical success in dairy farms. Normal annual abortion risks have been cited to be 3–5%, once cows are beyond 42 days of pregnancy (Hovingh, 2002), or similarly an observable 2–5% in most dairies (Kirk, 2003). Although, there is little or no indication that milk production is a risk factor for increased pregnancy losses in dairy cattle (Santos et al., 2004), there is little information on the effect of pregnancy losses on subsequent milk production. The aim of this study was to evaluate the impact of different calving classes including eutocia, dystocia, stillbirth and abortion in the first calving on subsequent milk production in Iranian Holstein dairy cows.

scholarly journals EFISIENSI REPRODUKSI SAPI PERAH FRIESIAN HOLSTEIN DI WILAYAH KERJA KOPERASI PETERNAKAN BANDUNG SELATAN (The Reproductive Efficiency of The Friesian Holstein Dairy Cows in The Area of South Bandung Livestock Cooperative)

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Fahmi Reza Fauzi ◽  
Tendy Kusmayadi ◽  
Tati Rohayati ◽  
Titin Nurhayatin ◽  
Ibrahim Hadist
Keyword(s):  
Dairy Cows ◽  
Research Method ◽  
Secondary Data ◽  
Conception Rate ◽  
Survey Method ◽  
Reproductive Efficiency ◽  
Calving Interval ◽  
Data Sampling ◽  
The South ◽  
Holstein Dairy Cows

Abstrak Penelitian ini bertujuan untuk mengetahui tingkat efisiensi reproduksi melalui pengamatan angka Service per Conception (S/C), angka Conception Rate (CR) dan angka Calving Interval (CI) pada sapi perah Friesian Holstein (FH) di wilayah kerja Koperasi Peternakan Bandung Selatan. Metode penelitian yang digunakan adalah metode survey, dengan pengambilan data bersumber dari data sekunder dan primer. Pengambilan data primer menggunakan kuesioner kepada 100 peternak di Wilayah Kerja Koperasi Peternakan Bandung Selatan (KPBS), sedangkan data sekunder diambil dari data rekording di kantor KPBS dengan pengambilan data masing-masing 10% dari populasi yaitu laktasi 2 sebanyak 144 ekor dan laktasi 3 sebanyak 250 ekor. Hasil penelitian menunjukkan Service per Conception (S/C) ternak laktasi 2 adalah 1.6 dan laktasi 3 adalah 1.8, Conception Rate (CR) ternak laktasi 2 adalah 58% dan laktasi 3 adalah 46% dan Calving Interval (CI) ternak laktasi 2 rata-rata adalah 385 hari dan ternak laktasi 3 rata-rata adalah 389 hari berkisar 12-13 bulan. Kesimpulan dari penelitian ini bahwa efisiensi reproduksi sapi perah Friesian Holstein (FH) di Wilayah Kerja Koperasi Peternakan Bandung Selatan dapat dikategorikan baik. Kata kunci: Service_per_Conception, Conception_Rate, Calving_Interval, Friesian Abstract This research aim to know the level of reproductive efficiency through the observation number Service per Conception (S/C), the Conception Rate (CR) and Calving Interval (CI) on Friesian Holstein Dairy Cows in the area of South Bandung Livestock Cooperative. The research method used Survey method, with the primer and secondary data. The primer data retrievaled from 100 breeders in South Bandung Livestock Cooperative and secondary data sampling from the recording lactation 2 as many as 144 herd and lactation 3 as many as 250 herd. Result of the research showed the Service Per Conception (S/C) of the second lactation is 1.6 and third lactation is 1.8, Conception Rate (CR) is 58% on the second lactation and 46% on third lactation and Calving Interval (CI) of lactation 2 average is 385 days and lactation 3 average is 389 days revolved around 12-13 month. The conclusions of this study that ther reproductive efficiency of the Friesian Holstein Dairy Cows in the area of the South Bandung Livestock Cooperative can be categorized good. Keywords: Service_per_Conception, Conception_Rate, Calving_Interval, Friesian_ Holstein

scholarly journals Characterization of Short-Term Heat Stress in Holstein Dairy Cows Using Altered Indicators of Metabolomics, Blood Parameters, Milk MicroRNA-216 and Characteristics

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 722
Author(s):  
Jang-Hoon Jo ◽  
Jalil Ghassemi Nejad ◽  
Dong-Qiao Peng ◽  
Hye-Ran Kim ◽  
Sang-Ho Kim ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Milk Yield ◽  
Milk Fat ◽  
Blood Parameters ◽  
Negative Effects ◽  
Short Term ◽  
Lactating Cows ◽  
Humidity Index ◽  
Holstein Dairy Cows

This study aims to characterize the influence of short-term heat stress (HS; 4 day) in early lactating Holstein dairy cows, in terms of triggering blood metabolomics and parameters, milk yield and composition, and milk microRNA expression. Eight cows (milk yield = 30 ± 1.5 kg/day, parity = 1.09 ± 0.05) were homogeneously housed in environmentally controlled chambers, assigned into two groups with respect to the temperature humidity index (THI) at two distinct levels: approximately ~71 (low-temperature, low-humidity; LTLH) and ~86 (high-temperature, high-humidity; HTHH). Average feed intake (FI) dropped about 10 kg in the HTHH group, compared with the LTLH group (p = 0.001), whereas water intake was only numerically higher (p = 0.183) in the HTHH group than in the LTLH group. Physiological parameters, including rectal temperature (p = 0.001) and heart rate (p = 0.038), were significantly higher in the HTHH group than in the LTLH group. Plasma cortisol and haptoglobin were higher (p < 0.05) in the HTHH group, compared to the LTLH group. Milk yield, milk fat yield, 3.5% fat-corrected milk (FCM), and energy-corrected milk (ECM) were lower (p < 0.05) in the HTHH group than in the LTLH group. Higher relative expression of milk miRNA-216 was observed in the HTHH group (p < 0.05). Valine, isoleucine, methionine, phenylalanine, tyrosine, tryptophan, lactic acid, 3-phenylpropionic acid, 1,5-anhydro-D-sorbitol, myo-inositol, and urea were decreased (p < 0.05). These results suggest that early lactating cows are more vulnerable to short-term (4 day) high THI levels—that is, HTHH conditions—compared with LTLH, considering the enormous negative effects observed in measured blood metabolomics and parameters, milk yield and compositions, and milk miRNA-216 expression.

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