scholarly journals Relationships Among Age, Body Weight, Scrotal Circumference, Semen Quality and Peripheral Testosterone and Estradiol Concentrations in Pubertal and Postpubertal Holstein Bulls

2008 ◽  
Vol 70 (1) ◽  
pp. 119-121 ◽  
Author(s):  
Bhuminand DEVKOTA ◽  
Tsugio KOSEKI ◽  
Motozumi MATSUI ◽  
Motoki SASAKI ◽  
Etsushi KANEKO ◽  
...  
Keyword(s):  
Body Weight ◽  
Semen Quality ◽  
Scrotal Circumference ◽  
Holstein Bulls

261 HIGH NUTRITION DURING EARLY LIFE IMPROVES REPRODUCTIVE POTENTIAL OF HOLSTEIN BULLS

2015 ◽  
Vol 27 (1) ◽  
pp. 220
Author(s):  
A. Dance ◽  
J. Thundathil ◽  
R. Wilde ◽  
P. Blondin ◽  
J. Kastelic
Keyword(s):  
Early Life ◽  
Semen Quality ◽  
Reproductive Potential ◽  
National Research Council ◽  
Developmental Competence ◽  
Scrotal Circumference ◽  
Bull Calves ◽  
Fertilizing Ability ◽  
Holstein Bulls ◽  
Dairy Bull

The objective was to determine effects of early-life nutrition on reproductive potential of Holstein bulls. Twenty-six bull calves were randomly allotted to 3 groups and fed ~70, 100, or 130% of National Research Council recommendations for both energy and protein from 2 to 31 wk; thereafter, all were fed a 100% diet (adequate vitamins and minerals were constantly available) until slaughter (72 wk). Growth rate, scrotal circumference, and paired testis volume were determined every 4 wk during the differential feeding period. Once scrotal circumference reached 26 cm, semen collection was attempted (to confirm puberty). Post-pubertal semen quality was monitored; once bulls were producing 70% morphologically normal sperm, semen was cryopreserved (programmable freezer). These semen samples (3 bulls per group and 3 ejaculates per bull) were used in an IVF system to determine the fertilizing ability of sperm and developmental competence of resulting embryos. In the low-, medium-, and high-nutrition groups, respectively, bulls were 369.3 ± 14.1, 327.4 ± 9.5, and 324.3 ± 11.7 days at puberty; their paired testes weights were 561.6 ± 23.1, 611.1 ± 59.1, and 727 ± 33.0 g; cleavage rates were 68.0 ± 8.7, 77.1 ± 3.5, and 68.7 ± 4.5%; and blastocyst rates were 31.5 ± 5.6, 41.4 ± 4.9, and 33.7 ± 4.6% (no significant differences among the 3 nutrition groups for rates of cleavage or blastocyst formation). We concluded that early-life supplementation of energy and protein hastened puberty (P < 0.05) and increased testicular size (P < 0.05), without compromising sperm fertilizing ability. Therefore, feeding dairy bull calves a high plane of nutrition early in life is recommended as a management strategy to improve their reproductive potential.

scholarly journals The Excellence of Performance, Semen Quality and Testosterone Levels on Bull in Teaching Farm, Faculty of Veterinary Medicine, Universitas Airlangga

2021 ◽  
Vol 4 (1) ◽  
pp. 131
Author(s):  
Pudji Srianto ◽  
Trilas Sardjito ◽  
Budi Utomo ◽  
Oky Setyo Widodo
Keyword(s):  
Body Weight ◽  
Veterinary Medicine ◽  
Performance Test ◽  
Semen Quality ◽  
Sandwich Elisa ◽  
Testosterone Levels ◽  
Scrotal Circumference ◽  
Frozen Semen ◽  
The Mean ◽  
Age Range

Study on performance, semen quality and testosterone levels of 2 young bulls (age range 3-5 years) Limousine and Simental and 2 old bulls (age range 6-8 years) types Limousin and Simental have been carried out in the Teaching Farm, Faculty of Veterinary Medicine, Universitas Airlangga. This study aimed to determine the performance, semen quality and testosterone levels can be used as a guideline whether or not the ejaculate of young and old bulls should be continued into frozen semen. Performance tests were carried out using measuring sticks and weight bands, semen quality tests included macroscopic and microscopic tests, semen concentration using a spectrophotometer and testosterone test using the Sandwich-ELISA method. The mean results of the performance test in young bulls were, while the mean for older bulls were: body weight 700 kg; hump height 136.5 cm; circumferens of chest 213 cm; body length 171 cm and scrotal circumference 35.5 cm. The performance test for old bulls is body weight 840 kg; hump height 143 cm; circumferens of chest 225.5 cm; body length 177.5 cm and scrotal circumference 40.25 cm. Mean macroscopic of semen examination for young bulls, mean volume 8 cc; milky white color; characteristic odor; The degree of acidity was 6.5 and mucous consistency, while for the old bulls the volume was 6.85; milky white color; characteristic odor; 6.5 degrees of acidity and mucous consistency. The mean microscopic examination for young bulls was mass movement ++ / +++; individual movement 80/3; concentration 745.5 million / ml; abnormalities 3% and 92.25% viability, for old bulls: movement mass ++ / +++; individual movement 77.5 / 3; concentration 1291.5 millon / ml; abnormalities 5% and viability 90%. Examination of serum testosterone levels using the Sandwich-ELISA technique was obtained by an average of 1.299 ± 0.1598 ng/ml in young bulls and 1.101 ± 0.1502 ng/ml in older bulls. This study concluded that young bulls and old bulls in the Teaching Farm, Faculty of Veterinary Medicine, Universitas Airlangga in terms of performance, semen quality and testosterone levels are suitable for processing into high quality frozen semen.

Relationship of age to body weight, scrotal circumference, testicular ultrasonograms, and semen quality in Sahiwal bulls

2010 ◽  
Vol 43 (1) ◽  
pp. 159-164 ◽  
Author(s):  
Ejaz Ahmad ◽  
Nasim Ahmad ◽  
Zahid Naseer ◽  
Muhammad Aleem ◽  
Muhammad Sarwar Khan ◽  
...  
Keyword(s):  
Body Weight ◽  
Semen Quality ◽  
Scrotal Circumference ◽  
Relationship Of

scholarly journals Scrotal Circumference as a Parameter of Breeding age for West African Dwarf Bucks.

2015 ◽  
Vol 3 (8) ◽  
pp. 668
Author(s):  
Lukman Oladimeji Raji ◽  
Oluwatoyin Oluwasola Ajala
Keyword(s):  
Body Weight ◽  
Semen Quality ◽  
Body Condition Score ◽  
Semen Analysis ◽  
West African ◽  
West African Dwarf ◽  
Scrotal Circumference ◽  
Condition Score ◽  
D 12 ◽  
Ibadan Nigeria

This study evaluated the correlation between scrotal circumference (SC), body weight (BW) and body condition score (BCS) in relation to breeding age in West African Dwarf (WAD) bucks. A total of 320 WAD bucks from birth to 15 months of age from various farms in Ibadan, Nigeria, were studied. They were grouped as A-birth to 3, B-4 to 7, C-8 to 11 and D-12 to 15 months old respectively, comprising of 80 bucks per group. Semen was collected from 10 randomly selected bucks in each group and analysed. Results showed positive correlation between SC and age; SC increased with age; and at about 8 months of age and over, a consistent SC of 17 cm–18 cm was observed. BW also increased with age; BW significantly affected SC. Also, at 8 months of age and over, SC of 17 cm-18 cm was observed from 9 kg BW and above. However, the correlation between SC and BCS was low and not significant. Semen analysis revealed the best semen quality for groups C and D bucks. In conclusion, we suggest that WAD bucks of 8 months and above, with at least SC between 17 cm–18 cm and of over 9 kg BW, could be used to breed does successfully on the farm.

Splicing-related single nucleotide polymorphism of RAB, member of RAS oncogene family like 2B (RABL2B) jeopardises semen quality in Chinese Holstein bulls

2017 ◽  
Vol 29 (12) ◽  
pp. 2411 ◽  
Author(s):  
Xiuge Wang ◽  
Xiaohui Cui ◽  
Yan Zhang ◽  
Haisheng Hao ◽  
Zhihua Ju ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Splice Variant ◽  
Semen Quality ◽  
Intraflagellar Transport ◽  
Ras Oncogene ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Exon 2 ◽  
Chinese Holstein ◽  
Holstein Bulls

RAB, member of RAS oncogene family like 2B (RABL2B) is a member of a poorly characterised clade of the RAS GTPase superfamily, which plays an essential role in male fertility, sperm intraflagellar transport and tail assembly. In the present study, we identified a novel RABL2B splice variant in bovine testis and spermatozoa. This splice variant, designated RABL2B-TV, is characterised by exon 2 skipping. Moreover, a single nucleotide polymorphism (SNP), namely c.125G>A, was found within the exonic splicing enhancer (ESE) motif, indicating that the SNP caused the production of the RABL2B-TV aberrant splice variant. This was demonstrated by constructing a pSPL3 exon capturing vector with different genotypes and transfecting these vectors into murine Leydig tumour cell line (MLTC-1) cells. Expression of the RABL2B-TV transcript was lower in semen from high- versus low-performance bulls. Association analysis showed that sperm deformity rate was significantly lower in Chinese Holstein bulls with the GG or GA genotype than in bulls with the AA genotype (P < 0.05). In addition, initial sperm motility was significantly higher in individuals with the GG or GA genotype than in individuals with the AA genotype (P < 0.05). The findings of the present study suggest that the difference in semen quality in bulls with different RABL2B genotypes is generated via an alternative splicing mechanism caused by a functional SNP within the ESE motif.

Genetic associations between age at first calving and heifer body weight and scrotal circumference in Nelore cattle

2009 ◽  
Vol 126 (5) ◽  
pp. 387-393 ◽  
Author(s):  
D.A. Grossi ◽  
G.C. Venturini ◽  
C.C.P. Paz ◽  
L.A.F. Bezerra ◽  
R.B. Lôbo ◽  
...  
Keyword(s):  
Body Weight ◽  
Genetic Associations ◽  
Age At First Calving ◽  
Scrotal Circumference ◽  
Nelore Cattle

scholarly journals Scrotal Circumference and its Relationship with Testicular Growth, Age, and Body Weight in Murrah Buffalo Bulls

2019 ◽  
Vol 8 (11) ◽  
pp. 2270-2274
Author(s):  
V.H. Shende ◽  
S.H. Sontakke ◽  
V.V. Potdar ◽  
Tejsjree V. Shirsath ◽  
J.R. Khadse
Keyword(s):  
Body Weight ◽  
Murrah Buffalo ◽  
Testicular Growth ◽  
Scrotal Circumference

scholarly journals Repeatability and Phenotypic Correlation Among Semen Quality Traits in Holstein Bulls

2018 ◽  
Vol 42 (4) ◽  
Author(s):  
Argi Argiris ◽  
Siswanto Imam Santoso ◽  
Yon Supri Ondho ◽  
Edy Kurnianto
Keyword(s):  
Artificial Insemination ◽  
Semen Quality ◽  
Intraclass Correlation ◽  
Correlation Method ◽  
Phenotypic Correlation ◽  
Quality Traits ◽  
Frozen Semen ◽  
Holstein Bulls ◽  
Fresh Semen ◽  
Selection Of

The purpose of this research was to analysis the value of repeatability and correlation among the traits affecting the production of frozen semen from Holstein’s bull in Indonesia. Repeatability and correlation were calculated based on the data of frozen semen production of 15.699 records from 44 Holstein bulls at Singosari Artificial Insemination Center (SAIC) and 8.935 records from 39 Holstein bulls at Lembang Artificial Insemination Center (LAIC). Repeatability for volume, motility, fresh semen concentration and frozen semen production was evaluated by intraclass correlation method. The repeatability values of LAIC for volume, motility, fresh semen concentration and frozen semen production were 0.60; 0.54; 0.37 and 0.47. The repeatability values of SAIC for volume, motility, fresh semen concentration and frozen semen production were 0.54; 0.30; 0.43 and 0.29. The linear correlation value between volume, motility and fresh semen concentration with the amount of semen produced per collections were 0.41, 0.36, and 0.58. Concentration was the most factors influencing the number of frozen semen produced. The effectiveness of the selection of Holstein's frozen semen producing could be determined by the value of repeatability and the phenotypic correlation among semen quality traits such as volume, motility, concentration and frozen semen production.

RELATIONSHIPS OF SCROTAL CIRCUMFERENCE WITH BODY WEIGHT AND BACKFAT THICKNESS IN MULTIBREED SYNTHETIC POPULATIONS OF YOUNG BEEF BULLS

1982 ◽  
Vol 62 (4) ◽  
pp. 1049-1055 ◽  
Author(s):  
A. K. SHARMA ◽  
R. T. BERG
Keyword(s):  
Body Weight ◽  
Performance Test ◽  
Correlation Coefficients ◽  
Backfat Thickness ◽  
Simple Correlation ◽  
Scrotal Circumference ◽  
Synthetic Populations ◽  
Breed Group ◽  
Partial Correlations ◽  
Beef Bulls

Relationships of scrotal circumference (SC) with body weight (BW) and backfat thickness (FT) as measured from scanograms were studied. A total of 935 observations on growing multibreed synthetic beef bulls on a postweaning performance test were available from a commercial herd for this study. Significant breed group, period and group × period interaction effects were noted on SC, BW and FT. BW and SC increased significantly during the test in all breed groups, while FT showed no change in three breed groups. Repeatability pooled across groups for SC was estimated as 0.72; 0.66 after adjusting for BW. Significant correlations were noticed between SC and BW within each breed group. Partial correlations between SC and BW at constant FT were not different from gross correlations. Linear regression coefficients of SC on BW were significant in all groups and showed heterogeneity among groups but not between periods within groups. Adjustments of SC for BW should, therefore, be breed group specific. BW alone accounted for considerable variation in SC, from 38 to 76%. Simple correlation coefficients between SC and FT were low and significant in only two groups. A significant but low positive relationship was noted between SC and FT at constant BW in a group fed a high-concentrate diet during the postweaning gain period, but there was no relationship in four other groups. Results indicated that the method of adjusting SC for FT as an indirect way of adjusting for scrotal fat was not satisfactory. Key words: Bulls, scrotal circumference, growth

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