Relationship between Body Condition of Cows with Incidence of Estrus and Pregnancy Rate

2016 ◽  
Vol 9 (2) ◽  
pp. 199-208
Author(s):  
Ali Mohamed ◽  
H. Wahid ◽  
Y. Rosnina
Keyword(s):  
Pregnancy Rate ◽  
Body Condition

scholarly journals 119 Foot scoring effects on cow and calf performance at breeding and weaning

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 50-50
Author(s):  
Clayton L McGuire ◽  
Jeremy G Powell ◽  
Reagan Cauble ◽  
Bryan Kutz ◽  
Karen Anschutz ◽  
...  
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Pregnancy Rate ◽  
Body Condition ◽  
Body Condition Score ◽  
Performance Data ◽  
Point Scale ◽  
Condition Score ◽  
Calf Performance ◽  
Cow Performance

Abstract Foot soundness is essential for optimum performance in beef cattle. When evaluating foot soundness, emphasis is placed on foot angle (FA) and claw set (CS). The objective of this study was to investigate the effects of foot angle and claw set scores on cowherd performance. Data were collected on 491 crossbred Angus-based cows over a three-year period. At weaning, FA and CS were evaluated according to American Angus Association guidelines. Scores are based on a nine-point scale, where a score of one indicates straight pasterns and short, divergent toes, and nine indicates weak, sunken pasterns and long, curled toes. Cows that exhibited scores ranging from four to six were considered acceptable. If either score fell outside this range, the cow was considered undesirable. Acceptable and undesirable cows were evaluated for performance traits including pre-breeding body weight (PBW), pre-breeding body condition score (PBCS), cow body weight at weaning (CWW), cow body condition score at weaning (WBCS), pregnancy rate, 205 d adjusted weaning weight (AWW), and weaning performance (WP). Data were analyzed using the GLIMMIX procedure of SAS. Significance was declared at P ≤ 0.05. There were no differences (P ≥ 0.19) for WP, PBW, PBCS, CWW, or pregnancy rate. Cows with acceptable foot scores had a WBCS 5.49% greater (P < 0.001) than undesirable cows. Acceptable cows possessed an average WBCS of 4.9 compared to 4.6 in undesirable cows. Acceptable cows weaned calves 3.39% heavier (P = 0.024) compared to undesirable cows. Acceptable cows weaned calves with a mean AWW of 216.67 kg compared to undesirable cows with a mean of 209.56 kg. The results from this study suggest that cows with acceptable foot scores may maintain more desirable BCS and wean heavier calves. These results could be used to help predict cow performance based on FA and CS.

Effect of Body Condition Score (BCS) on In Vivo Embryo Production and Pregnancy Rate Following Superovulation in Hanwoo

2013 ◽  
Vol 28 (1) ◽  
pp. 7-12
Author(s):  
Gyu-Tae Yeom ◽  
◽  
Hae-Geum Park ◽  
Nam-Tae Kim ◽  
Sung-Woo Kim ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Body Condition ◽  
Body Condition Score ◽  
Embryo Production ◽  
Condition Score

scholarly journals Pregnancy rate as an indicator of nutritional status in Rangifer. implications of lactational infertility

Rangifer ◽  
1997 ◽  
Vol 17 (1) ◽  
pp. 21 ◽  
Author(s):  
K. L. Gerhart ◽  
R. G. White ◽  
R. D. Cameron ◽  
D. E. Russell ◽  
D. Van de Wetering
Keyword(s):  
Nutritional Status ◽  
Pregnancy Rate ◽  
Body Condition ◽  
Pregnancy Rates ◽  
Lactating Females

Monitofing pregnancy rates to detect changes in nutrition is best accomplished by sampling lactating females because they will be more responsive to changes in nutrienr availability: nutrition influences pregnancy fate of lactating caribou both through autumn body condition and lactational infertility.

scholarly journals Calving month and calf sex on the production and efficiency of herds

2020 ◽  
Vol 21 ◽  
Author(s):  
Ricardo Zambarda Vaz ◽  
José Fernando Piva Lobato ◽  
João Restle ◽  
Pablo Tavares Costa ◽  
Lidiane Raquel Eloy ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Body Condition ◽  
Body Condition Score ◽  
Performance Characteristics ◽  
Reproductive Efficiency ◽  
Single Group ◽  
Independent Variables ◽  
Condition Score ◽  
Breeding Herd ◽  
Calving Intervals

Abstract The calving period influences productivity and reproductive efficiency the herds. The objective of this study was to evaluate two calving months (October and November) and their effect on the efficiency of a breeding herd for three consecutive years. A total of 298 Braford cows were evaluated at three, four, and five years of age, with their calves early-weaned at 148 days of age. The performance characteristics of the cow/calf pairs were evaluated with the calving month and calf sex as the independent variables. The animals were kept as a single group for the three years of observation. Cows calving in November were heavier and had a higher body condition score at calving. Cows calving in October were heavier and produced heavier calves at weaning. Male calves were heavier at birth and weaning than females (30.8 vs 28.6 kg and 118.9 vs 114.7 kg, respectively). The pregnancy rate was 82.35 and 69.23% for cows calving in October and November, respectively. Calving intervals were shorter in cows calving in November. Cows calving in October were more efficient compared with those calving in November, with a higher actual fertility rate. The production of kilograms of the calf/cow pair was higher for cows calving in October.

32 USE OF HORMONE WITH ACTION FOLLICLE-STIMULATING IN OVULATION SYNCHRONIZATION OF CROSSBRED HOLSTEIN-GYR COWS

2010 ◽  
Vol 22 (1) ◽  
pp. 174
Author(s):  
V. A. Nascimento ◽  
G. S. Moura ◽  
M. Dias ◽  
F. A. Oliveira ◽  
A. R. Dias ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Body Condition ◽  
Buenos Aires ◽  
Body Condition Score ◽  
Animal Health ◽  
Live Weight ◽  
Fixed Time ◽  
Estradiol Benzoate ◽  
Sao Paulo ◽  
São Paulo

The objective of this study was to evaluate the administration of the follicle-stimulating hormone (FSH-p) or equine chorionic gonadotropin (eCG) in protocols of ovulation synchronization. One hundred forty-nine crossbred Holstein-Gyr cows were used in 2 properties in Minas Gerais and 3 treatments: TControl (n = 49 cows), Day 0: insert of a progesterone device (Primer®, Tecnopec, São Paulo, Brazil) + 2 mg of estradiol benzoate (RIC-BE®); Day 8: removal of Primer + 112 mg of D-cloprostenol (Prolise®, ARSA SRL, Buenos Aires, Argentina) + 1 mg of estradiol benzoate and fixed-time artificial insemination (FTAI) accomplished 44 h after the removal of Primer; TFSH (n = 50 cows), similar to TControl, but on Day 8, 15 mg of FSH-p (Folltropin®, Bioniche Animal Health) was administered; TeCG (n = 50 cows), similar to TControl, with administration on Day 8 of 300 IU of eCG (Novormon®, Syntex SA, Buenos Aires, Argentina). Cows that returned to estrus 14 to 28 days after the FTAI were inseminated once again. For all statistical analysis, we used the program SAS 9.0 (2002; SAS Institute Inc., Cary, NC, USA) at 5% probability. Quantitative variables (live weight, days postpartum, follicular average per cow) were analyzed by variance, and body condition score by Friedman test. The pregnancy rates were submitted to logistic analysis considering the effect of local experimental factors and were analyzed by Spearman correlation among the variables studied and the pregnancy rate. There was no difference (P > 0.05) between treatment for pregnancy rate in FTAI protocols (TControl = 40.82%; TFSH = 38.00%; TeCG = 26.00%), in the first insemination after FTAI (TControl = 56.25%; TFSH = 70.59%; TeCG = 68.42%), and in FTAI plus first insemination after FTAI (TControl = 59.18%; TFSH =62.00%; TeCG = 52.00%), as well as for the estrus repetition (TControl = 55.17%; TFSH = 54.84%; TeCG = 51.35%) and the correlation (P > 0.05) among the pregnancy rate and postpartum period, milk production, body weight and body condition. No effect was observed on the pregnancy rate by the addition of the hormones FSH and eCG in the protocol of ovulation synchronization in crossbred Holstein-Gyr cows; however, reinsemination in the period from 14 to 28 days after FTAI increased the pregnancy rate. CNPq; FAPEMIG; TECNOPEC/São Paulo, Brazil.

Impacts of body condition score at beginning of fixed-timed AI protocol and subsequent energy balance on ovarian structures, estrus expression, pregnancy rate and embryo size of Bos indicus beef cows

2022 ◽  
pp. 104823
Author(s):  
Marcelo Vedovatto ◽  
Renan Barbosa Lecciolli ◽  
Eduardo de Assis Lima ◽  
Raizza Fátima Abadia Tulux Rocha ◽  
Rafaela Nunes Coelho ◽  
...  
Keyword(s):  
Energy Balance ◽  
Pregnancy Rate ◽  
Body Condition ◽  
Body Condition Score ◽  
Bos Indicus ◽  
Beef Cows ◽  
Embryo Size ◽  
Condition Score

Effects of supplementation and stocking rate on body condition and production parameters of multiparous beef cows

2005 ◽  
Vol 81 (3) ◽  
pp. 403-411 ◽  
Author(s):  
B. J. Renquist ◽  
J. W. Oltjen ◽  
R. D. Sainz ◽  
J. M. Connor ◽  
C. C. Calvert
Keyword(s):  
Birth Weight ◽  
Pregnancy Rate ◽  
Body Condition ◽  
Body Condition Score ◽  
Beef Cows ◽  
Protein Supplementation ◽  
Interactive Effects ◽  
Stocking Rate ◽  
Production Parameters ◽  
Condition Score

AbstractFall-calving multiparous Angus × Hereford cows 3 to 10 years of age were stratified by age in a three by two factorial treatment arrangement to evaluate the efficacy of modifying stocking rate and supplementation strategy to manage cow body condition and production parameters over a 5-year study. Efficacy was evaluated quarterly in association with calving, breeding, weaning, and mid way between weaning and calving (i.e. in August). Three protein supplementation strategies (none, standard, strategic) were imposed across both a moderate (0·3 cows per ha) and a high (0·4 cows per ha) stocking rate. In the strategically supplemented group, protein supplement was provided to cows with a body condition score <5·5 at the quarterly evaluations. There was an effect of supplementation on pregnancy rate, which in combination with previously established culling practices resulted in different age profiles amongst supplementation strategies in years 2 to 5 (P < 0·01). Two statistical analyses were therefore conducted to dissociate the confounding effects of supplementation strategy and age. One model included the effect of stocking rate, supplementation strategy, production year, and all interactions; the second included the addition of age and its interactive effects. Stocking rate and supplementation strategy affected pregnancy rate in each of the models (P = 0·003 and P = 0·10, respectively). Standard, non-supplemented and strategically supplemented animals had estimated pregnancy rates of 0·83, 0·76, and 0·79, respectively (P = 0·10). The effects of nutrition on both calving interval and birth weight were independent of the model employed. Animals that were not supplemented had extended calving intervals (P = 0·06), but there was no effect of stocking rate (P > 0·10). Birth weight was not affected by supplementation strategy or stocking rate (P > 0·10). The lower 205-day weights of calves on a heavy compared with moderate stocking rate was independent of age (P = 0·02). However, the increased 205-day weight of calves born to strategically supplemented cows compared with those born to unsupplemented cows was only evident when data were not corrected for differences in age among groups (P = 0·03). Likewise, analyses of cow condition parameters using models without and with age resulted in different interpretations. These results suggest that strategic and standard supplementation result in similar animal performance and that the improvement in herd productivity associated with altering stocking rate and supplementation may partially be due to altered herd age dynamics.

Metabolic and endocrine profiles of primiparous beef cows grazing native grassland. 2. Effects of body condition score at calving, type of suckling restriction and flushing on plasmatic and productive parameters

2014 ◽  
Vol 54 (7) ◽  
pp. 862 ◽  
Author(s):  
P. Soca ◽  
M. Carriquiry ◽  
M. Claramunt ◽  
G. Ruprechter ◽  
A. Meikle
Keyword(s):  
Pregnancy Rate ◽  
Body Condition ◽  
Body Condition Score ◽  
Beef Cows ◽  
Cholesterol Concentration ◽  
Control Group ◽  
Native Grassland ◽  
Endocrine Profiles ◽  
Igf I ◽  
Condition Score

The objective of the present experiment was to analyse the effect of body condition score (BCS) at calving, type of suckling restriction and flushing on metabolic and endocrine profiles, and productive and reproductive responses of primiparous beef cows grazing native grassland. Primiparous beef (n = 56) cows in anestrus classified by BCS at calving (low ≤3.5 and moderate ≥4; 1–8 visual scale) were assigned randomly to four treatments in a two by two factorial arrangement of type of suckling restriction and flushing. Type of suckling restriction started at 55 ± 10 days postpartum (DPP ± s.e.m.; Day 0 = initiation of the treatment) and consisted of applying nose plates to calves for 12 days (i.e. TS treatment) or 5 days of isolation of the cow–calf pair, followed by applying nose plates to calves for 7 days as calves were reunited with their mothers (i.e. IS treatment). Immediately after the suckling restriction treatments were finished, the breeding season started, and each cow received (flushing group) or not (control group) 2 kg/day (fresh basis) of whole-rice middling for 22 days. The BCS was superior in moderate-BCS cows through the experiment. The type of suckling restriction did not affect any plasma parameter, but insulin-like growth factor I (IGF-I) concentrations increased in all cows during suckling restriction. Cholesterol concentration was affected by flushing × day interaction (P < 0.05), while insulin and IGF-I concentrations were affected by the interaction among BCS at calving, flushing and days (P < 0.03). Flushing increased cholesterol concentration in both BCS groups at calving, while insulin and IGF-I concentrations increased during flushing only in moderate-BCS cows. Suckling restriction, flushing, and BCS at calving did not affect calf weight or milk production. Moderate BCS cows had a shorter postpartum anestrous interval (PPI) (98 vs 123 DPP; P < 0.01). Isolated type of suckling reduced postpartum anestrous interval when compared with TS treatment (97 vs 115 DPP, P < 0.05). Early pregnancy rate was greater in flushed than in control cows (0.8 vs 0.55, P < 0.01) and in moderate-BCS cows than in low-BCS cows (0.84 vs 0.46, P < 0.01). Total pregnancy rate was also greater in flushed and moderate cows and tended to be affected by the interaction between flushing and BCS at calving (P = 0.06; flushed cows: moderate = 1 vs low = 0.5, P < 0.08; and control cows: moderate = 0.8 vs low = 0.4, P < 0.09). These results confirmed the great value of suckling restriction and flushing during post-calving and relevance of BCS at calving as a link between energetic nutrition and metabolic and reproductive processes in primiparous beef cows grazing native grassland.

Effect of monensin, energy level, and cow body condition on pregnancy rate in nonlactating beef cows

1980 ◽  
Vol 14 (2) ◽  
pp. 91-104 ◽  
Author(s):  
M.F. Smith ◽  
L.D. Shipp ◽  
W.N. Songster ◽  
J.N. Wiltbank ◽  
L.H. Carroll
Keyword(s):  
Energy Level ◽  
Pregnancy Rate ◽  
Body Condition ◽  
Beef Cows

scholarly journals The use of insulin to improve fertility of timed-inseminated postpartum suckled beef cows

2010 ◽  
Vol 45 (10) ◽  
pp. 1219-1221 ◽  
Author(s):  
Augusto Schneider ◽  
Luiz Francisco Machado Pfeifer ◽  
Eduardo Schmitt ◽  
Ivan Bianchi ◽  
Marcelo Brandi Vieira ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Body Condition ◽  
Chorionic Gonadotropin ◽  
Artificial Insemination ◽  
Body Condition Score ◽  
Insulin Injection ◽  
Fixed Time ◽  
Beef Cows ◽  
Condition Score ◽  
Equine Chorionic Gonadotropin

The objective of this work was to evaluate the effect of insulin alone or in association with equine chorionic gonadotropin (eCG) on the fertility of postpartum beef cows subjected to synchronization. A total of 340 cows was subjected to fixed time artificial insemination. In the trial 1, the cows were subjected to temporary weaning (TW), while in the trial 2 the same protocol was tested without TW. The addition of an insulin injection to a progesterone/eCG-based protocol without TW increased the pregnancy rate of beef cows with body condition score (BCS) equal to or lower than 2.5. Insulin had no effect on cows submitted to TW or with BCS equal to or higher than 3.0.

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