Estrus detection with activity tags in dairy cows housed in tie-stalls

1995 ◽  
Vol 75 (4) ◽  
pp. 633-636 ◽  
Author(s):  
A. D. Kennedy ◽  
J. R. Ingalls
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Detection Rate ◽  
Visual Detection ◽  
Correction Method ◽  
False Positives ◽  
Daily Exercise ◽  
Estrus Detection ◽  
Exercise Period

Activity tags were attached to the rear ankle of 11 Holstein dairy cows maintained indoors in tie-stalls except for a 3 h daily exercise period. Cows were monitored for 56–63 d. Activity tags detected 18/27 (67%) of estruses with 22 incorrect indications (false positives) compared to a visual detection rate of 19% with three false positives. Use of a correction method decreased the number of activity tag false positives considerably with only a decrease of two in the number of correctly identified estruses. Key words: Activity, estrus detection, tie-stall, dairy cow

Effects of Beta-carotene Administration on Fertility in Lactating Dairy Cows

2021 ◽  
Author(s):  
Ebru Karakaya Bilen ◽  
Gülnaz Yılmazbaş Mecitoglu
Keyword(s):  
Dairy Cows ◽  
Detection Rate ◽  
Beta Carotene ◽  
Prostaglandin F2 Alpha ◽  
Lactating Dairy Cows ◽  
Follicle Diameter ◽  
Ovulatory Follicle ◽  
Estrus Detection ◽  
Potential Benefits ◽  
Β Carotene

Background: Beta-(β-) carotene, is the precursor to vitamin A, in particular, has some potential benefits on reproduction. The main objective of this study was to investigate the efficacy of β-carotene administration on fertility following either prostaglandin F2 alpha (PGF) induced estrus or Ovsynch protocol in lactating dairy cows.Methods: Cows with at 47±3 postpartum days were divided into two groups: β-carotene group (βC, n=139) was treated with injectable β-carotene while untreated cows served as control (CON, n=227). In both groups, PGF was administered and heatmount detectors were applied at 54±3 days postpartum. Cows detected in estrus after PGF were inseminated. Cows that had not been detected in estrus were divided into two groups 7 days after PGF administration; βC-OVS (n=137) and CON-OVS (n=89). Ovsynch protocol was initiated 4 days after β-carotene administration.Result: The estrus detection rate was similar between the βC and CON groups (P = 0.19). Pregnancy per AI (P/AI) on d 31 was also similar between groups (P = 0.93). In the Ovsynch protocol, ovulation to the first GnRH and ovulatory follicle diameter at the time of insemination did not differ between groups. No difference was observed in P/AI at d 31 (P = 0.13). The results of this study indicated that β-carotene administration had no effect on fertility either PGF induced estrus or Ovsynch protocol in dairy cows. 

EVALUATION OF FOUR ON-FARM PROGESTERONE TEST KITS AS AN AID TO REPRODUCTIVE MANAGEMENT IN DAIRY COWS

1990 ◽  
Vol 70 (1) ◽  
pp. 207-210 ◽  
Author(s):  
R. RAJAMAHENDRAN ◽  
B. WONG ◽  
J. ROBINSON ◽  
J. A. SHELFORD
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Predictive Value ◽  
Ease Of Use ◽  
Progesterone Concentration ◽  
Reproductive Management ◽  
Color Development ◽  
Test Kit ◽  
On Farm

Four on-farm progesterone kits were evaluated for ease of use, color development and accuracy. No difference (P > 0.05) was found between kits in their ability to predict progesterone status but the accuracy of all kits varied with progesterone concentration. Tests were highly effective at low or high progesterone levels, but were of little predictive value for values between these extremes. Data suggest that on-farm progesterone tests are potentially useful management aids to confirm estrus, nonpregnancy and cyclicity. Key words: Progesterone, test kit, dairy cow

scholarly journals Improving detection of dairy cow estrus using fuzzy logic

2010 ◽  
Vol 67 (5) ◽  
pp. 503-509 ◽  
Author(s):  
Leandro dos Anjos Brunassi ◽  
Daniella Jorge de Moura ◽  
Irenilza de Alencar Nääs ◽  
Marcos Martinez do Vale ◽  
Silvia Regina Lucas de Souza ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Dairy Cow ◽  
Fuzzy Inference ◽  
Characteristic Curve ◽  
Dairy Farm ◽  
Lactating Cows ◽  
System Validation ◽  
Estrus Detection ◽  
The Right ◽  
Production Losses

Production losses due to lack of precision in detecting estrus in dairy cows are well known and reported in milk production countries. Nowadays automatic estrus detection has become possible as a result of technical progress in continuously monitoring dairy cows using fuzzy pertinence functions. Dairy cow estrus is usually visually detected; however, solely use of visual detection is considered inefficient. Many studies have been carried out to develop an effective model to interpret the occurrence of estrus and detect estrus; however, most models present too many false-positive alerts and because of this they are sometimes considered unreliable. The objective of this research was to construct a system based on fuzzy inference functions evaluated with a receiver-operating characteristic curve, capable of efficiently detect estrus in dairy cows. For the input data the system combined previous estrus cases information and prostaglandin application with the data of cow activities. The system outputs were organized in three categories: 'in estrus', 'maybe in estrus" and 'not in estrus'. The system validation was carried out in a commercial dairy farm using a herd of 350 lactating cows. The performance of the test was measured by calculating its sensitivity towards the right estrus detection; and its specificity towards the precision of the detection. Within a six months period of tests, over 25 thousands cases of estrus were analyzed from a database of the commercial farm. The sensitivity found was 84.2%, indicating that the system can detect estrus efficiently and it may improve automatic estrus detection.

Effects of feeding anionic products to non-lactating dairy cows on urine pH

2003 ◽  
Vol 83 (3) ◽  
pp. 609-612 ◽  
Author(s):  
K. A. Beauchemin ◽  
G. R. Bowman ◽  
L. M. Rode ◽  
M. A. G. von Keyserlingk
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Urine Ph ◽  
Once Daily ◽  
Urine Acidification ◽  
Lactating Dairy Cows

Anionic products (anionic salts, Bio-Chlor™, Nutri-Chlor™, and SoyChlor 16-7™ ) were fed to 12 non-lactating dairy cows and urine pH was monitored. The products differed in their effectiveness: anionic salts, Bio-Chlor, and Nutri-Chlor lowered urine pH, but SoyChlor was not effective. For cows fed once daily, checking urine pH 12 to 18 h after feeding is most likely to indicate nadir pH. Key words: Dietary cation-anion difference, urine acidification, urine pH, dairy cow, non-lactating

BEHAVIOR OF PERIPARTURIENT DAIRY COWS AND THEIR CALVES

1990 ◽  
Vol 70 (2) ◽  
pp. 355-362 ◽  
Author(s):  
H. HOUWING ◽  
J. F. HURNIK ◽  
N. J. LEWIS
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Management Practice ◽  
Lower Body ◽  
Lower Body Weight ◽  
Assisted Delivery ◽  
Maintenance Behavior ◽  
Lateral Recumbency

The pre- and postparturient behavior of 14 Canadian Holstein cows and 16 heifers, and the neonatal behavior of their 31 calves were analyzed. In the 12 h before parturition an increase in semilateral recumbency and a decrease in standing and ruminating were noted. Twenty-four births, 13 by cows (87%) and 11 by heifers (69%), took place with the dam recumbent. Dams requiring assistance remained recumbent longer (4 min vs. 37 min). However, the management practice of placing the calf in front of the dam following an assisted delivery may have contributed to the longer period of recumbency. Cows stood sooner (14 min) than heifers (37 min) following delivery. During the first 3 h postpartum the dam spent 43% of the time licking her calf. Calves were observed in semilateral recumbency 65% of the time and lateral recumbency 14% of the time, interspersed with standing and suckling. Female calves and calves born to heifers stood and suckled earlier. This may have been related to the lower body weight of these calves compared to male calves and calves born to cows. After removal of the calves (10.1 ± 4.1 h), the dams' maintenance behavior, including lateral recumbency, ruminating, eating and self-licking, increased in frequency. Key words: Dairy cow, parturition, behavior

scholarly journals Acidification of urine by feeding anionic products to non-lactating dairy cows

2003 ◽  
Vol 83 (2) ◽  
pp. 319-321 ◽  
Author(s):  
G. R. Bowman ◽  
K. A. Beauchemin ◽  
L. M. Rode
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Urine Ph ◽  
Total Mixed Ration ◽  
Temporal Effects ◽  
Lactating Dairy Cows

Three commercial anionic products (Bio-Chlor MM™, Bio-Chlor FR™ and SoyChlor 16-7™) were fed to non-lactating dairy cows in a total mixed ration (TMR). After the anionic products were included in the TMR at the manufacturers’ recommendations for 4-d, all products reduced urine pH below the desired threshold of 6.5. The rate at which the products reached nadir urine pH differed among the products, but once acidification was accomplished temporal effects on pH were minimal. Key words: Urine pH, dietary cation-anion difference, prepartum, dairy cow, non-lactating

Duration of a severe feed restriction required to reversibly decrease milk production in the high-producing dairy cow

2007 ◽  
Vol 87 (3) ◽  
pp. 455-458 ◽  
Author(s):  
Chanelle A. Toerien ◽  
John P. Cant
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Milk Production ◽  
Milk Yield ◽  
Dairy Cow ◽  
Milk Protein ◽  
Holstein Cows ◽  
Plasma Metabolites ◽  
Feed Restriction ◽  
Post Trial

To establish the duration of a severe feed restriction necessary to reversibly decrease milk production in high-producing Holstein cows, milk, plasma and urine parameters were assessed every 6 h during a 24-h restriction and 18-h refeed period. The 24-h restriction decreased yields of milk, protein and lactose by more than 30% without inducing ketosis or impairing milk production post-trial. Key words: Feed restriction, dairy cows, milk yield, plasma metabolites

EFFECT OF α-TOCOPHEROL SUPPLEMENTATION TO DAIRY COWS ON MILK AND PLASMA α-TOCOPHEROL CONCENTRATIONS AND ON SPONTANEOUS OXIDIZED FLAVOR IN MILK

1990 ◽  
Vol 70 (2) ◽  
pp. 561-570 ◽  
Author(s):  
ANNE-MARIE ST-LAURENT ◽  
J.W.G. NICHOLSON ◽  
M. HIDIROGLOU ◽  
M. SNODDON
Keyword(s):  
Vitamin E ◽  
Dairy Cows ◽  
Key Words ◽  
Soybean Meal ◽  
Dairy Cow ◽  
Basal Diet ◽  
Tocopheryl Acetate ◽  
Alfalfa Silage ◽  
Spontaneous Oxidation ◽  
Key Words Spontaneous

An α-tocopherol supplementation study was conducted with 12 Holstein cows, assigned to one of three dietary α-tocopherol levels, 0, 700, and 3000 IU cow−1 d−1, as dl-α-tocopheryl acetate. Cows were fed a basal diet of alfalfa silage and a barley-corn-soybean meal grain mix. The study consisted of a pretreatment (wk 0), a treatment (wk 1 to 5) and a posttreatment phase (wk 6 and 7). Peak milk α-tocopherol levels were observed at wk 1 for the 700 IU group and at wk 2 (P < 0.05) for the 3000 IU group. During wk 2 to 5 milk α-tocopherol concentrations were highest for the 3000 IU group and peaked at 22.0 μg g−1 lipid; plasma α-tocopherol levels increased by 0.7 and 1.3 μg mL−1 for the 700 and 3000 IU groups. By the end of the posttreatment phase, milk α-tocopherol concentrations had returned to wk 0 levels. A field study was conducted of four herds (142 cows) with a chronic spontaneous oxidized flavor (SOF) milk problem. The herds were fed α-tocopherol at 0, 700 and 3000 IU cow−1 d−1 in a changeover design of 2-wk periods followed by access to spring pasture for 4-wk. Milk flavor improved when higher levels of α-tocopherol were fed and SOF was minimal when pasture was grazed. The percentage of cows in the herds producing SOF milk was 68, 61, 56, and 8 for the 0, 700 and 3000 IU d−1 treatments and pasture, respectively. α-Tocopherol levels were highest (P < 0.05) in milk for the 700 IU d−1 level of feeding and in plasma (P < 0.05) when pasture was consumed. Milk and plasma α-tocopherol levels did not correlate well with improved flavor scores. Key words: Spontaneous oxidation, milk, α-tocopherol, dairy cow, flavor, vitamin E

scholarly journals Test Various Estrus Detection Device Against Pregnancy Rates on Dairy Cows in Cooperative Tunas Setia Baru Kabupaten Pasuruan

2017 ◽  
Vol 3 (6) ◽  
pp. 712
Author(s):  
Silvia Rani Andriyanti ◽  
Mas’ud Hariadi ◽  
Roesno Darsono ◽  
Pudji Srianto
Keyword(s):  
Dairy Cows ◽  
Pregnancy Rate ◽  
Dairy Cow ◽  
Artificial Insemination ◽  
Research Method ◽  
Control Sample ◽  
Pregnancy Rates ◽  
Treatment Groups ◽  
Detection Tool ◽  
Estrus Detection

This research aims to determine the use of various estrus detection devices before artificial insemination as measured by pregnancy rate. The researcher used a sample of 60 cows were used in this research which is divided into four groups as a control and treatment groups (Thermopin®, Hauptner and Draminski groups), and each cow was detected for the sign of estrus by three devices that were Thermopin®, Hauptner and Draminski prion when doing an artificial insemination. The cows were observed to 45 days after artificial insemination for observing pregnancy. This research method is the exploration scope to prove the effect of various estrus detection tool against pregnancy rates. The result of ANOVA test, there is the effect of using a various estrus detection devices against pregnancy rates. Samples tested by Draminski with average (1.53±0.51) resulted in a 53.3% pregnancy rate, the samples were tested with Hauptner with average (1.67±0,48) resulted in pregnancy rate 66.7%. Without treatment or control, sample with an average of (1.67±0.48) resulted in a  73.3% pregnancy rate. While samples were tested with Thermopin® with average (2.00±0.00) resulted in a 100% pregnancy rate. In conclusion, Thermopin® the best detection tool than other estrus detection devices. Keyword: estrus detection, artificial insemination, dairy cow, pregnancy rate

The use of pedometers to detect oestrus in dairy cows

1987 ◽  
Vol 1987 ◽  
pp. 1-1
Author(s):  
S.A. Schofield ◽  
C.J.C. Phillips
Keyword(s):  
Physical Activity ◽  
Dairy Cows ◽  
Dairy Cow ◽  
Detection Rate ◽  
Human Walking ◽  
Dairy Herds ◽  
Management Problem ◽  
Walking Activity ◽  
The Uk ◽  
The Relationship

Poor oestrous detection is considered by many the most important management problem in the UK dairy herds. Various detection aids are available to the farmer, but in spite of these the average oestrous detection rate in Britain is low, only about 40 - 60% (Poole and Mabey, 1986).Cows in oestrus tend to be more active than non-oestrous cows and results from various workers indicate that activity is a good indicator of oestrus (Kiddy 1976, Lewis and Newman, 1984). Three experiments were conducted to investigate the relationship between the distance walked and oestrous state of cows.Pedometers designed to measure human walking activity were used to measure the physical activity of the dairy cow. These were attached to the hind leg of the cow. In experiment 1 distance walked (miles/day) was recorded twice daily for 20 cows in a cubicle shed on the day of oestrus and 5 days pre - or post - oestrus. In experiment2 pedometers were evaluated in two environments for oestrous detection with 20 cows allocated to a cubicle shed or a straw yard. In a third experiment behavioural observations of 20 cows were recorded four times daily with pedometer readings.

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