18 RELATIONSHIP BETWEEN MULTIPLE OVULATIONS AND CONCEPTION IN LACTATING DAIRY COWS

2009 ◽  
Vol 21 (1) ◽  
pp. 109
Author(s):  
H. Yoshioka ◽  
H. Matsuda ◽  
Y. Yamanouchi ◽  
Y. Aoki ◽  
K. Konishi ◽  
...  

The relationship between multiple ovulations and various factors involved in conception in lactating Holstein cows was investigated in this study. A total of 53 AI cows housed in a free-stall barn were assigned to this study. They were offered a balanced TMR ad libitum during the experimental period. Cows were milked at 0830 and 1900 h. Milk yields were recorded at each milking. Estrus was detected by radiotelemetric pedometers (Yoshioka et al. 2007 Reprod. Fertil. Dev. 19, 129). The body condition score (BCS) of cows was recorded at estrus. Artificial insemination was performed according to the pedometry data. Pregnancy was diagnosed 42 days post-AI by transrectal ultrasonography. Ovulation was assessed by transrectal ultrasonography of the ovary every 3 h from the end of estrus. Ovulation time was measured from the onset of estrus to ovulation. Milk production of each cow was determined from 14 days before the day of estrus. Blood samples for estradiol-17β (E2) were collected at the peak of estrus, and for progesterone (P4), samples were collected on Days 0, 3, 6, 9, and 12 (estrus = Day 0). The E2 and P4 concentrations were measured by enzyme immunoassay. Preovulatory follicles at estrus and CL on Day 0, 3, 6, 9, and 12 were monitored by transrectal ultrasonography. The overall incidence of multiple ovulations was 28.3% (15/53). There was no difference in duration of estrus between cows with multiple ovulations and cows with single ovulations (10.2 h, n = 15 v. 9.8 h, n = 38). Ovulation time was longer for cows with multiple ovulations than that for cows with single ovulations (30.4 h, n = 10 v. 28.7 h, n = 26; P = 0.0545). In all cases of multiple ovulations, 2 follicles ovulated simultaneously. The milk production of cows with multiple ovulations was higher than that of cows with single ovulations (40.1, n = 15 v. 36.2 kg d–1, n = 38; P = 0.0515); however, BCS showed the opposite results (2.86, n = 15 v. 3.13, n = 38; P < 0.05). There was a significant inverse correlation between milk production and BCS in cows with multiple ovulations (r = –0.768; P < 0.01). The E2 concentrations showed no difference between cows with multiple and single ovulations (9.6 pg mL–1, n = 8 v. 8.2 pg mL–1, n = 23). The diameters of preovulatory dominant follicles and secondary follicles at estrus in cows with multiple ovulations were significantly smaller than those in cows with single ovulations (18.2 and 14.2 mm, n = 14 v. 19.9 mm, n = 38, respectively; P < 0.05). Cows with multiple ovulations showed a significantly higher P4 concentration and a larger CL than those with single ovulations from Day 3 to 12. The conception rate for AI was significantly higher for cows with multiple ovulations than for cows with single ovulations (73.3%, n = 15 v. 36.2%, n = 38; P < 0.05). Our results showed that high conception rates, high levels of milk production, and low BCS were associated with multiple ovulations.

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 467-468
Author(s):  
Fernanda F Santos ◽  
Luciano Brochine ◽  
Vanderlei Benetel Junior ◽  
Maria Laura R Coelho ◽  
Augusto H Gameiro ◽  
...  

Abstract The objective of this study was to evaluate the milk production, body weight, and body condition score (BCS) of ewes fed with different energy levels. Seventy-one ewes were used and distributed in three treatments according to the metabolizable energy (ME, Mcal/kg) levels in the diet: CTL = according to the NRC (2007) recommendation for each stage (gestation and lactation); PLUS = CTL plus 10% of ME per kilogram of dry matter; LESS = CTL less 10% ME per kilogram of dry matter. Body weight and body condition score were evaluated a week before the expected date of parturition, a week after giving birth, and at weaning (60 days). Dairy production was evaluated at 20, 30, 40, 50 and 60 days after giving birth by the indirect method of the two weighing. The experimental design was analyzed as randomized complete blocks. There were no differences on milk production during almost all the lactation curve. Only on day 50 (P = 0.051), CTL was still at peak, while LESS and PLUS had already decreased their production. However, at 60 days, all treatments were already with low production, justifying weaning in this period. Results of weight and BCS showed a significant difference in all periods evaluates. Ewes in the PLUS diet had greater BW and BCS. The BCS before giving birth is expected to be over 3.5 and treatment LESS was the only one that did not achieve this score (2.66, 3.37, 3.83 for LESS, CTL, and PLUS, respectively). At weaning, ewes fed PLUS and CTL had BCS of 3.51 and 2.92, respectively, but treatment LESS had only 1.82. That is prejudicial for the next mating seasonal and this animal. We concluded that LESS diet interfered with the body reserves of sheep.


2014 ◽  
Vol 54 (7) ◽  
pp. 856 ◽  
Author(s):  
P. Soca ◽  
M. Carriquiry ◽  
M. Claramun ◽  
V. Gestido ◽  
A. Meikle

The body condition score (BCS) at calving has been postulated as the main factor in the interaction of nutrition and reproduction in beef-cow ecosystems. The objective of the present study was to analyse the effect of BCS at calving on endocrine and metabolic profiles during the transition period in primiparous Hereford cows (n = 56) grazing native grassland. Cow BCS was registered and plasma insulin, insulin-like growth factor-I (IGF-I) and metabolites (concentrations of urea, albumin, cholesterol, total protein, non-esterified fatty acids (NEFA)) were determined in plasma from –30 to +45 days postpartum (DPP). The effect of BCS at calving (low ≤3.5 and moderate ≥4; 1–8 visual scale) on BCS evolution and hormone and metabolite concentrations were analysed using a time repeated-measures analysis. Cow BCS, NEFA, urea and IGF-I profiles were affected (P < 0.05) by the BCS at calving and DPP interaction, while insulin tended (P = 0.06) to be affected only by BCS at calving. The low-BCS cows presented a smaller loss of BCS during the prepartum than did moderate-BCS cows, and a delayed BCS recovery during the postpartum. The increase in plasma NEFA was greater (P < 0.05) and started earlier during the prepartum period in the low-BCS cows. Protein concentrations increased during prepartum to +30 DPP, while albumin and urea concentrations were maintained until calving and decreased during the postpartum. Urea concentrations were greater (P < 0.05) during prepartum in low-BCS cows. Concentrations of IGF-I and insulin were greater (P < 0.05) in moderate- than low-BCS cows during prepartum, but did not differ between the groups after calving. No effects were observed in calf weight or milk production at +45 DPP. The association between BCS during prepartum and at calving with the endocrine and metabolic profiles (positive: insulin, IGF-I; negative: NEFA and urea) reflected a better nutritional status and plasticity to negative energy balance on moderate cows. This different endocrine milieu did not affect calf weight and/or milk production. In conclusion, the BCS at calving affected the metabolic and endocrine profile during the transition period of primiparous beef cows grazing native grassland.


Author(s):  
Hilal Tozlu Çelik ◽  
Fatih Ahmet Aslan ◽  
Yeliz Kaşko Arıcı ◽  
Metehan Eser Kahveci ◽  
İbrahim Kiper

In this study, it was aimed to determine the number of pregnancies and infants by B-Mod Real Time 3.5 MHz linear transabdominal probe ultrasonography device on the 50th day of pregnancy in 126 head Karayaka sheep. In addition, the relationship between body condition score and fry birth weight was tried to be determined on the 50th day of pregnancy and sheep age. The findings obtained by ultrasonography device were compared with the lambing records. In this study, the accuracy of ultrasound examination was 84% and sensitivity was 93%. The correlation coefficient between the average body condition score of the sheep on the 50th day of pregnancy and birth weight of the offspring was calculated as 0.234 and it was found to be statistically significant. It was determined that there was a significant relationship between the sheep age and the body condition score at the 50th day of pregnancy.


2020 ◽  
Vol 8 (2) ◽  
pp. 89
Author(s):  
Melsa Netika ◽  
Roesno Darsono ◽  
Budi Utomo ◽  
Imam Mustofa ◽  
Ismudiono Ismudiono ◽  
...  

The aim of this research was to observe the Body Condition Score (BCS) and milk production of Friesian Holstein (FH) dairy cattles. 144 of dairy cattles divided into 3 groups based on BCS 1-9 scale. The results showed that Y = 6.62 + 5.54X - 5.78X2. Coefficient of determination (R2) of 20.6 this mean any increase in milk production by 20.6% is affected by BCS. It can be concluded that there is a correlation between Body Condition Score (BCS) and milk production. The higher BCS (BCS 7-8) the lower milk production, while in ideal BCS production (5-6) the production of milk is optimize.


Author(s):  
Anitha Alapati ◽  
Sarjan Rao Kapa ◽  
Suresh Jeepalyam

Background: Body condition score (BCS) system is a subjective method to assess the body fat reserves particularly over the bony prominences like back and pelvic region. It is based on evaluation of the outer appearance of the animal that interacts with its body fat reserves and therefore is directly influenced by energy balance. Studies on the relationship between BCS and postpartum performance were meager in buffaloes. Hence, the present work was carried out to study the relationship between BCS at calving and postpartum performance in Murrah buffaloes. Methods: The effect of body condition score at calving (BCSc) on the postpartum performance was studied in 24 Murrah buffaloes grouped based on BCS, maintained at Buffalo Research Station during 2018-19. Result: The study showed that buffaloes of BCSc above 3.5 with significantly (P less than 0.01) higher body weights showed better reproductive performance compared to buffaloes of BCSc groups below 3.5 with less body weights. The prepartum and weekly postpartum changes in BCS studied showed that the buffaloes gained a BCS of 0.57 from 3 months prepartum to one week prepartum, lost 0.17 BCS due to calving, further showed a decline in BCS up to 9 weeks of postpartum and then started regaining BCS gradually until 18 weeks postpartum. The mean LBCS over the period of 18 weeks postpartum was comparatively higher (0.75±0.05) than BCS restored in the early lactation which was shown as GBCS (0.34±0.02). Buffaloes of BCSc group 3.5-3.99 showed the best reproduction performance among the four BCSc groups with less postpartum estrus period (46.66 days), service period (58.83 days), number of service per conception (1.50) and high rate of 1st service conception (66.66%).


2019 ◽  
Vol 58 ◽  
pp. 120-129 ◽  
Author(s):  
V. I. Ladyka ◽  
L. M. Hmelnychyi ◽  
S. L. Hmelnychyi

In the aspect of the search for predictors of longevity of dairy cattle animals, the dependence of longevity of Ukrainian brown dairy cows on indicators of descriptive conformation type traits has been investigated. We studied the linear type traits of the exterior of first-calf cows in the leading farms of the Sumy region, characterizing the state of the body development. According to the results of this research was determined, a reliable dependence of the cows longevity on the level of assessment of the descriptive conformation type traits: chest width, body depth, angularity, rump angle and width, and body condition score. The correlative variability of the relationship between cow’s longevity and these features was depending on the level of assessment of specific type trait of body structure of the animal. Dependence of the cows longevity on the development of chest width was different by curvilinear variability. The longer life of cows was found in animals with an estimate for the development of this type trait at 4–6 scores that averaged 2.726–2.895 days with the best 5 scores. When comparing the group of animals with an average 5 scores with the groups having 6–9 scores, a significant difference was found in favor of the first, ranging from 169 (P < 0.01) to 561 days (P < 0.001). Studies on the dependence of the longevity of brown cattle cows on the value of body depth assessment have shown that the most longevity was inherent in animals estimated by type trait development at 7–9 scores, with the highest rate in 2.856 days and estimate – 7 scores. The type trait of angularity similar to deep-chested and was also directly related to the cow's longevity. Cows with excessive angularity and the highest lifetime (2.713–2.855 days) were estimated by the higher scores (7–9) with the best evaluation results in 8 scores. A significant decrease in cows longevity was observed with a decrease in the assessment for this trait starting from 6 scores (-244 days; P < 0.05) to 1 (-701 days; P < 0.001) compared with the best result of 8 scores. The desired state of the linear trait development, the rump angle, was within the average assessment level of 5 scores, which similar to the optimal sacrum slope between the extreme points on the conditionally drawn line at the level of the top point of hip bones and the ischial hump, which was 2–4 cm. Deviations towards the assessment of the rump angle to 1 score (raised) or 9 scores (sloped) are the disadvantages of the body structure. The study of this trait has shown the curvilinear nature of the relationship between estimates for the state of rump angle and longevity of cows. Cows with an optimal 5 scores rating had the highest longevity of 2.796 days, while with increasing and decreasing estimates, the number of days of life of cows decreased. The longevity of cows of brown cattle was determined on the level of assessment for the trait of the rear width. Cows with a maximum estimate for the state of this descriptive trait in 9 scores were used for 575 days longer compared to animals rated at 1 score (P < 0.001). According to the results of research of animals by the trait of body condition, it was found that the degree of fatness was associated with the longevity of brown cattle in the opposite direction. That is, a thinner animals, which are valued lower scores, and used to live much longer. The influence of body condition score on the longevity of animals was confirmed by the highly reliable difference between the maximum (9 scores) and the minimum (1 score) estimates, which was 457 days (P < 0.001). A significant decrease of the longevity was observed in cows with an assessment of body condition in 6–9 scores. Thus, the existence of a correlative variability between estimates of descriptive traits of conformation type and the longevity of cows of Ukrainian brown breeds was determined. Each of the estimated type traits of the body structure correlates with the longevity of cows with varying variability within the classification scores in accordance with their desired development. Thus, the selection of animals for the desired development of linear traits at the age of the first lactation allows them to be used as indirect predictors to increase the duration of use of cows.


2017 ◽  
Vol 38 (6) ◽  
pp. 3797
Author(s):  
Narjara Rodrigues Gentil ◽  
Anselmo Domingos Ferreira Santos ◽  
Mikaele Alexandre Pereira ◽  
Mariana Santos Lima ◽  
José Cláudio Torres Guimarães ◽  
...  

This study aims to validate, by means of subcutaneous rump fat thickness (RFT), the suitability of the visual evaluation of body condition score (BCS) to indicate the body condition of crossbred dairy cows (Holstein x Zebu) during the transition period and early lactation. Animals were selected according to lactation period and distributed into three groups: PP (0 to 4 weeks antepartum; n = 30), L4 (0 to 4 weeks postpartum; n = 15), and L + 5 (5 to 14 weeks postpartum; n = 63). The relationship among RFT, BCS, and body weight (BW) was investigated using correlation and regression analyses. The variables BCS, RFT, and BW were different among the three groups (P < 0.05). The correlations between BCS and RFT were higher in groups PP and L + 5 (r = 0.78 and r = 0.71 respectively). However, the L4 group showed a weak correlation (r = -0.04). The regression models were able to explain how much RFT varies because of changes in BCS, with coefficients of determination equal to 0.61 for PP and 0.51 for L + 5 group. In conclusion, BCS can be considered a good predictor of RFT for crossbred Holstein x Zebu cows in antepartum and postpartum for over 5 weeks of lactation.


2011 ◽  
Vol 106 (S1) ◽  
pp. S85-S89 ◽  
Author(s):  
Barbour S. Warren ◽  
Joseph J. Wakshlag ◽  
Mary Maley ◽  
Tracy J. Farrell ◽  
Angela M. Struble ◽  
...  

The objective of the present study was to utilise an accurate canine pedometer methodology and to assess the relationship between activity and body condition score (BCS) in dogs. Initial methodology validation used videography and pedometer step measurements to assess actual steps taken in comparison with pedometer readings for twenty large, medium and small dogs. During the validation, dogs considered to be medium or large breed showed no significant difference between pedometer readings and actual steps taken. A total of seventy-seven obese and non-obese dogs over 35 cm (14 inches) shoulder height and over 10 kg were recruited from a dog obesity clinic and a community sample to assess daily walking activity. Body condition scoring and pedometer steps were assessed on three separate weeks during a 10-week period. During the activity monitoring, daily step counts ranged from 5555 to 39 970 steps/d among the seventy-seven medium and large dogs. Dogs’ BCS were inversely correlated with average daily steps (Spearman's ρ = − 0·442, P < 0·0001). The present study identified a significant inverse correlation between daily walking steps and BCS over a range from 4 to 9 out of 9 (P < 0·0001).


2009 ◽  
pp. 53-59
Author(s):  
Myrtill Kocsisné Gráff ◽  
András Jávor ◽  
Sándor Kukovics

The authors carried out an examination on two Saanen goat farms during four months from May to August 2008. The body condition score and milk production of the goats were measured. In data processing analysis of variance was used to compare the data of the studied farms. They tried to find the answer for the question how the body condition scores and milk production change in each month. The changes observed in each farm were examined separately then they compared the values of the two farms.. On one of the farms the nutrition was proper therefore with an ideal, intermediate body condition (average 2.73) the goats produced a good amount of milk (2.5 milk-kg/mother/day). On the other farm the nutrition was not proper, therefore the body condition of the goats was weak (average 1.88). Their milk production decreased significantly from month to month (average 2.35 milk-kg/mother/day). The authors could conclude considering both farms that the more milk the goats produced, the lower their body condition score became. The two parameters showed negative correlation.


2010 ◽  
Vol 64 (3-4) ◽  
pp. 197-206
Author(s):  
Horea Samanc ◽  
Danijela Kirovski ◽  
Milan Adamovic ◽  
Ivan Vujanac ◽  
Radisa Prodanovic ◽  
...  

The objective of the investigations presented in this work was to establish the effects of a glycerol-based energy supplement in the diet of high-yield dairy cows on their body condition and production results during the early stage of lactation. Forty-seven cows were selected before calving, and they were divided into two groups: controls (n=26) and experimental (n=21). Cows of the experimental group were administered the preparation 'Energy Top' (Biochem GMBH, Germany), in a quantity of 250 ml daily during the final two weeks of the dry period and until the 60th day of lactation. The body condition score (BCS) of all cows was determined 10 days before calving, and on days 15 and 60 after calving. Blood samples were taken 10 days before and 15 days after calving, and concentrations of glucose and beta hydroxi-butyric acid (BHBA) were determined in all samples. Average daily milk production of all cows was measured on days 30 and 60 of lactation. The results showed that the differences in BCS between the dry period and puerperium, or the dry period and the 60th day of lactation, were within physiological values in the experimental group of cows, and higher than physiological values in the control group. Glucose concentration was statistically significantly higher in the experimental group than in the control group of cows 10 days before calving (p<0.05) and 15 days after calving (p<0.01). Fifteen days after calving, the BHBA concentration in the control group of cows was significantly higher (p<0.01) than in the experimental group. On days 30 and 60 of lactation, the milk yield of experimental cows was higher than of those in the control group, but the difference was not statistically significant. The obtained results indicate that energy supplements should be used as an integral part of the feed ration during the peripartal period in order to prevent changes in the body condition score of cows by more than 0.7 points, and also that, in cows with a daily milk production of up to 30 l, an energy supplement has a stimulatory effect on milk production until the establishing of an energy balance, in this case, until around the 30th day following calving. .


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