Genetic aspects of body weight, body condition score, scrotal circumference and reproductive performance in Italian Holstein young bulls

2003 ◽  
Vol 2003 ◽  
pp. 53-53 ◽  
Author(s):  
S. Biffani ◽  
A.B. Samoré ◽  
F. Canavesi ◽  
E. Olzi ◽  
M. Cassandro
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Reproductive Performance ◽  
Body Condition Score ◽  
Point Of View ◽  
Progeny Testing ◽  
Scrotal Circumference ◽  
Good Physical Condition ◽  
Condition Score ◽  
Recessive Genes

Apart from all the issues regarding health and undesirable recessive genes, which are determining factors to identify bulls not suitable for AI, there are other aspects which can be considered. The principal aims of AI studs are the selection of the best animals from a genetic point of view and the production of semen in a very short time, in order to start progeny testing as soon as possible. In Italy progeny testing starts when 1200 straws for each young bull are available. This requirement implies that bulls should be in good physical condition. According to this, the genetic centre of the Italian Holstein Breeder Association (ANAFI) has been paying growing attention to animal welfare and fitness, recording routinely some biometrical indicators. Body weight (BW), scrotal circumference (SC), body condition score (BCS) are some examples of this policy and could be helpful and easy predictors of reproductive performance for a young progeny testing dairy bull. The objective of this report was to conduct a preliminary analysis on the genetic aspects of BW, BCS, SC, age at the 1st usable straw (AGE1) and age at the 1200th straw (AGE1200) in Italian Holstein young bulls.

scholarly journals COMPARISONS OF SOME REPRODUCTIVE PARAMETERS IN RED SOKOTO AND KANO BROWN BREEDS OF BUCKS

2021 ◽  
Vol 25 (1) ◽  
pp. 1-5
Author(s):  
I. S. BUTSWAT ◽  
D. T. ZAHARADDEEN
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Body Condition Score ◽  
Reproductive Parameters ◽  
Epididymal Sperm ◽  
Scrotal Circumference ◽  
Condition Score ◽  
The Mean ◽  
One Year

Some reproductive parameters of one-year-old 20 of each Red Sokoto and Kano Brown bucks were investigated. For the Red Sokoto and Kano Brown breeds of bucks, the mean (±S.E.) body weight, body condition score, scrotal circumference, testes weight, testes volume, epididymal length, epididymal volume, epididymal weight, testes sperm and epididymal sperm were 13.84± 0.54 vs 11.69 ± 0.35kg, 2.15±0.08 vs 2.10± 0.07, 19.83± 0.36 vs 18.27± 0.49cm, 36.41± 1.89 vs 29.70±1.98g, 35.63± 1.87 vs 29.48± 1.9ml, 10.67±0.20 vs 9.66± 0.25cm, 6.16± 0.23 vs 5.44±0.31ml 6.46± 0.24 vs 5.53± 0.34g, 0.24± 0.02 vs 0.16± 0.01 x 109 and 2.47± 0.16 vs 1.59± 0.16 x 109 respectively, and were significantly different between the breeds. The percentage epididymal segments mass and sperm were also depicted. There were highly significant correlations between many of the reproductive parameters in both breeds. The Red Sokoto bucks seem more adapted than the Kano Brown in terms of their reproductive make-up.

scholarly journals Reproductive Performance of Dairy Cows in Relation to Genotype, Age, Parity, Body Weight and Body Condition Score at Rajshahi District of Bangladesh

2020 ◽  
Vol 7 (3) ◽  
pp. 481-495
Author(s):  
Rashida Khaton
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Body Condition ◽  
Reproductive Performance ◽  
Body Condition Score ◽  
Post Partum ◽  
Age Groups ◽  
Reproductive Traits ◽  
Condition Score ◽  
Heat Period

The present study was carried out from selected areas at Rajshahi district to evaluate the reproductive performance of dairy cows in relation to breed/genotype, age, parity, body weight and body condition. A total of 500 cows selected and data were collected directly from the dairy farms owner by using pre-tested questionnaires during the period from September 2013 to December 2014. The average reproductive performance (RP) were recorded as age at puberty (AP) 26.42±0.22 m, age at first calving (AFC) 35.48±0.22 m, post-partum heat period (PPHP) 121.85±3.48 days, service per conception (S/C) 1.93±0.04, days open (DO) 136.80±3.57 days and calving interval (CI) 401.04±3.94 days. Genotype had significant effect (P<0.05) on all the reproductive traits except on S/C. Local (L) × Holstein Friesian (HF) genotype showed earlier AP and AFC than L× Sahiwal (SL) and L. Age group had significant (P<0.05) effect on AP, AFC and other parameters were not significant (P>0.05). Middle age groups of cows had shown better RP than others groups. Parities of cows had significant effect (P<0.05) on PPHP, S/C, DO except on AP, AFC and CI. Third parity had better RP than others. The best RP was found in >300 kg BW groups. Body condition score had significant effect (P<0.05) on all RP. Good body condition score (BCS) had excellent RP. Res. Agric., Livest. Fish.7(3): 481-495,  December 2020

The effect of nutrition before mating on the reproductive performance of Merino ewes

1966 ◽  
Vol 6 (23) ◽  
pp. 455 ◽  
Author(s):  
P McInnes ◽  
MD Smith
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Condition ◽  
Reproductive Performance ◽  
Body Condition Score ◽  
Body Weight Gain ◽  
Significant Relation ◽  
Critical Weight ◽  
Condition Score ◽  
High Level

A factorially designed trial was used to study the effects of level of nutrition on the reproductive performance of Merino ewes. A high level of nutrition from three weeks before joining to conception (flushing) increased the percentage of twin births independently of the effects of previous levels of nutrition. Levels of nutrition did not affect the number of ewes that lambed. Flushing increased body weight and body condition score. Re-analysis of the results showed that there was an association between both body weight gain and body condition score and percentage of twin births. However, body weight gain and body condition score increase during flushing were associated with levels of nutrition before flushing. Although flushing increased body weight of groups at conception, on re-analysis of the results, the percentage of twin births could not be associated with weight at conception. Possible reasons for this result are suggested. As there was no indication of a significant relation between weight at conception and percentage of ewes that lambed, it is suggested that the critical weight for mating these ewes was below 38.7 kg.

scholarly journals Phenotypic characteristics of Individual Bull used for Artificial Insemination (AI) Programme in Bangladesh

2009 ◽  
Vol 15 ◽  
pp. 99-109
Author(s):  
MJU Sarder ◽  
R Sultana ◽  
L Naha ◽  
MA Islam
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Artificial Insemination ◽  
Body Condition Score ◽  
Phenotypic Characteristics ◽  
Group Vi ◽  
Scrotal Circumference ◽  
Group I ◽  
Condition Score ◽  
Time Required

The purpose of the present study was to estimate the effect of phenotypic characteristics on the performances of bulls at three AI centres/stations (CCBSDF, Savar, RDCIF, Rajabarihat and District AI centres, Rajshahi). A total 71 bulls were studied for phenotypic parameters, viz., body weight, body condition score, scrotal circumference (SC), libido score and time required between two ejaculates during 1993 to 2002. The information on the phenotypic parameters was obtained by interviewing the semen collectors in respective AI centers, reading the AI bull resister as well as examining and observing the bull during semen collection. The bulls were classified according to genetic composition viz., Group I: 100% Friesian, Group II: 100% Sahiwal, Group III: 75% Friesian? 25% Local, Group IV: 50% Sahiwa l?50% Friesian, Group V: 50% Friesian ? 50% Local and Group VI: 100% Local. In general, the average body weight, body condition score, scrotal circumference (SC), libido score and time required between two ejaculates were 572 ? 124 kg, 3.2 ? 0.5 (Score:1-5), 36.3 ? 1.9cm, 3.3 ? 0.6 (Score:1-5) and 7.1 ? 2.3 minutes, respectively. Individual bull had significant effect on phenotypic characteristics in six genetic groups. The overall better performance of phenotypic parameter was observed in bull Id #: 0065 for Friesian breed, 163 for 100% Sahiwal breed, 7811 for 75% Friesian ?25% Local, 5156 for 50% Sahiwal?50% Friesian, 8224 for 50% Friesian ? 50% Local and 40248 for 100% Local breed. Therefore, phenotypic characteristics has clearly influenced on bull performances of Artificial Insemination (AI) programme in Bangladesh. Key words: Phenotypic characteristics, Individual bull and AI. DOI: http://dx.doi.org/10.3329/jbs.v15i0.2209 J. bio-sci. 15: 99-109, 2007

scholarly journals Natural and improved natural pastures on the reproductive performance of first-calf beef cows

2011 ◽  
Vol 40 (3) ◽  
pp. 690-699 ◽  
Author(s):  
Soraya Tanure ◽  
Bernardo Augusto Albornoz Pötter ◽  
José Fernando Piva Lobato
Keyword(s):  
Body Weight ◽  
Breeding Season ◽  
Body Condition ◽  
Reproductive Performance ◽  
Body Condition Score ◽  
Lolium Multiflorum ◽  
Protein Supplementation ◽  
Protein Supplement ◽  
Natural Pasture ◽  
Condition Score

This work evaluated the reproductive performance of first-calf cows at three years of age, submitted or not to protein supplementation at yearling on natural pastures. After calving, cows were managed on natural or improved pastures. The feeding managements were the following: on natural pastures as yearlings and during pregnancy, post-calving period and breeding season; on natural pastures with protein supplement as yearlings and only natural pasture during pregnancy, post-calving and breeding season; on natural pastures as yearlings and during pregnancy and on improved natural pastures (Lolium multiflorum L., Trifolium repens cv. Yi and Lotus corniculatus cv. São Gabriel) during the post-calving period and breeding season; on natural pastures with protein supplement at yearling, on natural pastures during pregnancy, and on improved natural pasture during post-calving period and breeding season. Cows did not differ on body weight, but from calving to the beginning of breeding season, cows on improved natural pastures presented higher weight gain than those on natural pastures (0.203 vs. 0.109 kg/day). Cows in post-calving on natural pastures lost 1.0 point of body condition score during mating, determinant of the lowest pregnancy rate and later conception in relation to cows on improved natural pasture. Pregnant cows presented higher body weight (440 vs. 413 kg) and body condition score (4.14 vs. 3.66 points) than open cows at the end of the breeding season.

scholarly journals Pelvic and Testicular Biometry of Sahel Goats in Maiduguri, Nigeria

2021 ◽  
Vol 18 (1) ◽  
pp. 1-5
Author(s):  
A. Abba ◽  
A. R. Mustapha ◽  
U. M. Bamanga ◽  
D. Iliyasu ◽  
I. D. Peter ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Significant Positive Correlation ◽  
Body Condition Score ◽  
The Body ◽  
Positive Correlation ◽  
Scrotal Circumference ◽  
Condition Score ◽  
The Mean ◽  
Breeding Soundness

This study was carried out to document the pelvic and testicular biometric characteristics of Sahel goats. Record of body weight, body condition score, height at withers, scrotal length, scrotal circumference and external pelvic circumference were obtained from 400 male and 600 female Sahel goats. All the goats were approximately 1.5 years old and weighing 14 to 18 kg, with body condition score of 3 or 4 (scale of 1-5). The mean bodyweight of Sahel bucks was 15.12 ± 1.10 kg while that of Sahel does was 13.22 ± 1.12 kg, height at withers in bucks and does were 52.22 ± 1.20 cm, and 48.13 ± 1.23 cm respectively. The scrotal length and circumference in Sahel bucks were 11.39 ± 1.12 cm and 17.95 ± 1.21 cm respectively. The external pelvic circumference in Sahel does was 55.13 ± 1.16 cm. There was significant (P<0.05) positive correlation between the body weight and body condition score in bucks (r=0.52) and in does (r=0.42). It was observed that there was weak but positive correlation between the body weight and height at withers (r=0.34), in bucks and in does (r=0.25; P <0.5). A low but significant positive correlation was found between the body weight and scrotal circumference r=0.28, (P<0.05) in bucks. There was a highsignificant positive correlation between the scrotal length and scrotal circumference r=0.66, (P <0.05).  The external pelvic circumference in Sahel does was also significantly positively correlated with body weight r=0.40, (P<0.05) and with the body condition score r= 0.33, (P<0.05). In conclusion, the body weight, body condition score, height at withers, scrotal length, scrotal circumference and external pelvic circumference of Sahel goats in Maiduguri were successfully determined, these parameters studied might serve as a bases for determining the breeding soundness of Sahel goats.

Sign in / Sign up

Export Citation Format

Share Document