Fluctuation of Reproductive Efficiency Traits of Holstein Cows in the Tokachi Area, Hokkaido

1982 ◽  
Vol 53 (12) ◽  
pp. 792-796
Author(s):  
Yoshinori TERAWAKI ◽  
Koji MUTO ◽  
Hitoshi ONO
Keyword(s):  
Holstein Cows ◽  
Reproductive Efficiency

Effect of fixed-time embryo transfer on reproductive efficiency in high-producing repeat-breeder Holstein cows

2010 ◽  
Vol 118 (2-4) ◽  
pp. 110-117 ◽  
Author(s):  
C.A. Rodrigues ◽  
A.A. Teixeira ◽  
R.M. Ferreira ◽  
H. Ayres ◽  
R.F. Mancilha ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Fixed Time ◽  
Holstein Cows ◽  
Reproductive Efficiency ◽  
Repeat Breeder

scholarly journals The effect of Glycoline® on reproductive efficiency in high-producing dairy cows

2016 ◽  
pp. 5163-5176
Author(s):  
Marcelo R. Del Campo ◽  
Marco Gonzalez T ◽  
Hans Andresen ◽  
Freddy A. Cea
Keyword(s):  
Dairy Cows ◽  
Pregnancy Rate ◽  
Transition Period ◽  
Holstein Cows ◽  
Reproductive Efficiency ◽  
Control Group ◽  
Ovarian Activity ◽  
Uterine Infection ◽  
Uterine Involution ◽  
Downer Cow Syndrome

ABSTRACT Objective. Determine the effect of Glycoline® on reproductive efficiency in high producing dairy cows. Materials and methods. 100 Holstein cows one month before delivery were selected. About 21 days before parturition they were put in a barn and were randomized in two groups: Glycoline® Group (GG, n=50), 300 g/day of Glycoline® for 21 days antepartum and 250 g/day of GlycoLine® over the following 21 days postpartum, and the Control Group (CG, n=50) with the same feed and silage ration as GG during the same period, but without the addition of Glycoline®. Events and reproductive variables of the cows were recorded for 202 days. The data were systematized, analyzed and statistically compared. Results. Comparisons were made between GG and CG respectively: Retained placenta (0.0 vs. 12.0%; p=0.027), downer cow syndrome (14.3 vs. 44.0%; p=0.002), uterine involution (64.6 vs. 36.4%; p=0.019 ), uterine infection (10.4% vs. 35.5%; p=0.006), no ovarian activity (6.3 vs. 25.6%; p=0.018), follicular cysts (0.0 vs. 18.2%, p = 0.002), luteal structures (25.0 vs. 9.3% ; p=0.058), mean estrus presentation (40.1% vs. 63.5%; p=0.033) inseminated females (79.6 vs. 68.0%; p=0.017), pregnancy rate at day 150 (57.1 vs. 46.0%; p≥0.317 ) and intervals (days): calving to 1st estrus (39.8 vs. 63.2; p≤0.006), calving to IA (62.4 vs. 87.5; p≤0.006) calving to conception (81.7 vs. 93.6; p≤0.006; p=0.103). Conclusions. Results suggest that dietary Glycoline® added in the transition period improves reproductive efficiency of high-producing dairy cows. RESUMEN Objetivos. Determinar el efecto del Glycoline® sobre la eficiencia reproductiva en vacas lecheras de alta producción. Materiales y Métodos. Se seleccionaron 100 vacas Holstein un mes antes del parto. Alrededor de 21 días antes del parto se ubicaron en un establo y se asignaron al azar a dos Grupos: Grupo Glycoline® (GG; n=50), 300 g/día de Glycoline® durante 21 días preparto y 250 g/día de Glycoline® durante los siguientes 21 días posparto y Grupo Control (GC, n=50) la misma ración de concentrado y ensilaje que el GG durante el mismo período de tiempo, pero sin la adición de Glycoline®. Se registraron los eventos y las variables reproductivas de las vacas durante 202 días. Los datos fueron sistematizados, analizados y comparados estadísticamente. Resultados. Comparaciones entre el GG y GC respectivamente: Retención de placenta (0,0 vs 12.0%; p=0.027), síndrome de vaca caída (14.3 vs 44.0%; p=0.002), involución uterina (64.6 vs 36.4%; p=0.019), infección uterina (10.4% vs 35.5%; p=0.006), sin actividad ovárica (6.3 vs 25.6%; p=0.018), quistes foliculares (0.0 vs 18.2%, p=0.002), estructuras luteales (25.0 vs 9.3%; p=0.058), promedio presentación de celo (40.1% vs 63.5%; p=0.033), hembras inseminadas (79.6 vs 68.0%; p=0.017), tasa de preñez al día 150 (57.1 vs 46.0%; p≥0.317) y intervalos de tiempo (días): parto 1er -celo (39.8 vs 63.2; p≤0.006), parto-IA (62.4 vs 87.5; p≤0.006) y parto-preñez (81.7 vs 93.6; p≤0.006; p=0.103). Conclusiones. Los resultados sugieren que el Glycoline® adicionado en la dieta en el período de transición, mejora la eficiencia reproductiva de vacas de alta producción.

Effects of month of breeding on reproductive efficiency of Holstein cows and heifers inseminated with sex-sorted or conventional semen in a hot environment

2013 ◽  
Vol 46 (1) ◽  
pp. 265-269 ◽  
Author(s):  
Miguel Mellado ◽  
Edgar Sepulveda ◽  
Ulises Macias-Cruz ◽  
Leonel Avendaño ◽  
Jose E. Garcia ◽  
...  
Keyword(s):  
Holstein Cows ◽  
Reproductive Efficiency ◽  
Hot Environment

scholarly journals Genetic merit for fertility traits in Holstein cows: I. Production characteristics and reproductive efficiency in a pasture-based system

2012 ◽  
Vol 95 (3) ◽  
pp. 1310-1322 ◽  
Author(s):  
S.B. Cummins ◽  
P. Lonergan ◽  
A.C.O. Evans ◽  
D.P. Berry ◽  
R.D. Evans ◽  
...  
Keyword(s):  
Holstein Cows ◽  
Reproductive Efficiency ◽  
Genetic Merit ◽  
Fertility Traits ◽  
Production Characteristics

Effect of Preventive Intrauterine Ozone Application on Reproductive Efficiency in Holstein Cows

2011 ◽  
Vol 47 (1) ◽  
pp. 87-91 ◽  
Author(s):  
D Djuricic ◽  
S Vince ◽  
M Ablondi ◽  
T Dobranic ◽  
M Samardzija
Keyword(s):  
Holstein Cows ◽  
Reproductive Efficiency

scholarly journals Gluconeogenic supplements do not affect production, reproductive traits and blood metabolite of holstein cows during the transition period

2004 ◽  
Vol 61 (4) ◽  
pp. 376-385 ◽  
Author(s):  
Paulo Garcez de Oliveira ◽  
Alexandre Vaz Pires ◽  
Paula Marques Meyer ◽  
Ivanete Susin ◽  
Elias Tunon Villarreta ◽  
...  
Keyword(s):  
Body Weight ◽  
Propylene Glycol ◽  
Transition Period ◽  
Interaction Time ◽  
Daily Administration ◽  
Holstein Cows ◽  
Reproductive Efficiency ◽  
Quadratic Effect ◽  
Time Treatment ◽  
Calcium Propionate

The use of gluconeogenic supplements for dairy cows during the transition period has produced contradictory responses in the literature, making it difficult to recommend them. The objective of this trial was to evaluate supplementation with propylene glycol (PG), calcium propionate (CP), and "Dairy Power Drench®" (DR) on the transitional period of Holstein cows. Parameters studied were variation of body condition score (BCS), body weight (BW), milk production (MP), reproductive efficiency and nonesterified fatty acid concentration (NEFA). One hundred and sixty five animals from two commercial herds were used. Treatments consisted of: C- Control; DR- administration of "Dairy Power Drench®" (3 applications) during postpartum; CP- daily administration of calcium propionate (500 g); PG- daily administration of propylene glycol (500 mL). Variation sources studied were the effect of treatments and blocks as function of farm and parity. No interaction between time (weeks) and treatments, or treatment effects, were found for BCS. However, there was a quadratic effect of time. Body weight and its variation were not affected by treatment nor by the time × treatment interaction. However, a quadratic effect of time was observed. An interaction time × treatment was observed on MP, but possible differences within each week were not detected. Treatments also did not affect reproductive efficiency parameters. On average, the number of days to first detected postpartum estrus was 69.5, with 2.23 services per conception and 172.6 days open. The mean concentration of nonesterified fatty acids was 376.6 mmol L-1 and no effect of the interaction time × treatment, or of treatment, was observed. However, a linear effect was observed with time, with a decrease of 48.2 mmol L-1 per week.

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