scholarly journals Effects of age, body weight, body condition and scrotal circumference on sperm abnormalities of bulls used for artificial insemination (AI) programme in Bangladesh

1970 ◽  
Vol 27 ◽  
pp. 73-78 ◽  
Author(s):  
Md Jalal Uddin Sarder

Impacts of age, body weight, body conditions, and scrotal circumference on sperm abnormalities of bulls used for artificial insemination (AI) in Bangladesh have been studied. During 1997-2002, 1390 ejaculates of semen from 71 bulls from Central Cattle Breeding Station and Dairy Farm, Savar, Dhaka, Rajshahi Dairy and Cattle Improvement Farm, Rajabarihat, and District Artificial Insemination Centre, Rajshahi, were collected and examined. Total head abnormalities, free loose head, mid-piece, tail abnormalities, proximal and distal cytoplamic droplets, total tail abnormalities and total sperm abnormalities were recorded. Age of the bulls had significant effect on sperm abnormalities (P < 0.01) except for proximal cytoplasmic droplet. Similarly, body weight had significant effect (P < 0.05) except for the total head abnormalities, while body conditions had no significant effect on mid-piece, total tail abnormalities and total sperm abnormalities except for the total head abnormalities. Scrotal circumference had significant effect (P < 0.05) on all the sperm abnormalities. The present results demonstrate that the middle (8 to < 10 yrs) and older (>10 yrs) bulls having body weight of < 450 kg, very good body condition and 36 to < 38 cm scrotal circumference had the lowest sperm abnormalities. The need for semen examination for morphological abnormalities of spermatozoa in bulls to be used for AI programme is strongly implicated by this study. Key words: Bull sperm abnormalities, age, body weight, body conditions, scrotal circumference, artificial insemination (AI) doi:10.3329/ujzru.v27i0.1959 Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 73-78  

1970 ◽  
Vol 2 (2) ◽  
pp. 129-135 ◽  
Author(s):  
MJU Sarder

The main objective of this study was to evaluate the effect of genetic groups of bulls on morphological characteristics of spermatozoa in relation to conception rate of first inseminated cows. For this purpose, 1390 ejaculates of semen were collected from 71 bull of six genetic groups at Central Cattle Breeding Station and Dairy Farm (CCBSDF), Savar, Dhaka; Rajabarihat Dairy Cattle Improvement Farm (RDCIF), Rajshahi, and District Artificial Insemination Centre, Rajshahi, from January 1997 to March 2002. A total of 20936 cows were inseminated by 40 technicians of different AI Sub-centre or points under the District Artificial Insemination Centre, Rajshahi, and pregnancy was confirmed on rectal palpation at 90 to 120 days after insemination. The average values of total head abnormalities, free loose head, mid-piece, tail abnormalities, proximal and distal cytoplasmic droplets, total tail abnormalities and total sperm abnormalities were 5.45%, 2.44%, 1.19%, 6.19%, 0.74%, 0.57%, 11.16% and 16.38%, respectively. Genetic groups of bull had significant (p < 0.05) effect on all the morphological characteristics of spermatozoa. The lower incidence of total sperm abnormalities (13.45%) was found in the genetic groups of 100% SL and higher (19.28%) in 75% F x 25% L bulls. The genetic groups of bulls had significant effect on first service conception rate of cows. The conception rate was higher in cows inseminated with 100% Local than those inseminated with genetic groups of 75% F x 25% L (53.13% vs 45.88%; p < 0.05). Significantly strong positive correlations were found between total head abnormalities and total sperm abnormalities (r = 0.828; p < 0.01) as well as between total tail abnormalities and total sperm abnormalities (r = 0.892; p < 0.01). It appears from the results that minimum total sperm abnormalities are found for pure breed bulls than cross-bred bulls, and 100% Local, 100% Friesian and 50% SL x 50% F bulls had better conception rates on cows.Key words: Spermatozoa; abnormalities; bull; genetic group; AI; conception ratedoi: 10.3329/bjvm.v2i2.2555Bangl. J. Vet. Med. (2004). 2 (2): 129-135


2009 ◽  
Vol 15 ◽  
pp. 99-109
Author(s):  
MJU Sarder ◽  
R Sultana ◽  
L Naha ◽  
MA Islam

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


2003 ◽  
Vol 2003 ◽  
pp. 53-53 ◽  
Author(s):  
S. Biffani ◽  
A.B. Samoré ◽  
F. Canavesi ◽  
E. Olzi ◽  
M. Cassandro

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.


2019 ◽  
Vol 29 (1) ◽  
pp. 75-82
Author(s):  
L. Muthiapriani ◽  
E. Herwijanti ◽  
I. Novianti ◽  
A. Furqon ◽  
W. A. Septian ◽  
...  

2021 ◽  
Vol 25 (1) ◽  
pp. 1-5
Author(s):  
I. S. BUTSWAT ◽  
D. T. ZAHARADDEEN

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.


2014 ◽  
Vol 14 (3) ◽  
pp. 573-584 ◽  
Author(s):  
Mateusz Rawski ◽  
Damian Józefiak

AbstractAfrican side-neck turtles (Pelomedusa subrufa and Pelusios castaneus) are popular in captivity, in many parts of the world. their natural tendency to accumulate body fat reserves may be a reason for many health issues. for keepers and veterinarians body condition scoring is an important tool in the process of management and care of the animals. therefore the main aim of the study was to formulate a single mathematic formula for allometric equations and simple body condition scoring method which can be used in juvenile, sub-adult and adult specimens of Pelomedusa subrufa and Pelusios castaneus. twelve healthy turtles (7 Pelomedusa subrufa and 5 Pelusios castaneus) – 4 males, 4 females and 4 immature were measured and weighed for 52 weeks (624 measurements). the obtained data were used to formulate equations of estimated body weight and compared to results of measurements of 73 turtles from private keepers. additionally, visual assessments of their body condition were made. The results showed that body weight is significantly (P=0.001) correlated with straight carapace length of turtles. in the assessed population of 73 captive Pelomedusidae kept as pets, no emaciated turtles were recorded, and 10% of them were underweight. In the case of 68% of the animals, body condition was identified as optimal, and in 15% and 7% as overweight and obese, respectively. The population of african side-neck turtles seems to be in quite good body condition. However, a high percentage of overweight and obese animals suggests the need for continuous monitoring of pet turtles for body condition.


2018 ◽  
Vol 10 (2) ◽  
pp. 87-94
Author(s):  
MS Islam ◽  
A Akhtar ◽  
MA Hossain ◽  
MF Rahman ◽  
SS Hossain

The study was conducted on 244 crossbred cows of CCBS Savar, Dhaka to evaluate the effect of different genetic groups on their lifetime performance of various reproductive traits using twenty years data. Data were accumulated from a prescribed data sheet maintained by Central Cattle Breeding Station, Dhaka. Genetic groups for this experiment were (LF), (LJ), (LH x F), (LF x LF) and (LJ x LJ). The studied parameters were age at puberty, service per conception, post-partum heat period, calving interval, total number of calving in lifetime. ANOVA showed that genetic groups had a significant effect on age at puberty, post-partum heat period, total number of calving in lifetime and calving interval (P<0.05). From result it was found that earliest age at puberty were in L x F (749.27±99.01), service per conception, postpartum heat period was lower in L x F (1.60±0.19 and (145.75±94.44 days respectively). Calving interval was lower in L x J (411.18±136.87 days) and almost similar results were obtained for L x F (432.26±96.26 days). Total number of calving in lifetime were observed higher in (LH x F) with mean of 1468.30±198.58 days.J. Environ. Sci. & Natural Resources, 10(2): 87-94 2017


Author(s):  
V. D. Humennyi ◽  
S. H. Shalovylo ◽  
B. V. Gutyj ◽  
A. O. Boiko

The results of researches in modern herds of meat breeds – classical British, Aberdeen-Angus and autochthonous gray Ukrainian for conducting of pollination in research farms “Polivanivka” of the Institute of Agriculture of Steppe Regions of NAAS of Ukraine and “Progress” of Chernihiv Institute of Agro-Industrial Production in 2009–2012. The ethological behavior of mothers (cows) and their calves was studied in the conditions of keeping and growing livestock on the technology of meat cattle breeding. Animals for conducting research were selected taking into account age, body weight of cows, sex calves, body weight of calves at birth. Collection of accounting materials was carried out according to the data of the primary technological and pedigree records, artificial insemination magazines, materials of ethological observations. Observations were conducted in accordance with the task of preserving genetic diversity in gene pool herds of Aberdeen-Angus and Gray Ukrainian breeds. The herds of animals in the experimental farms kept the meat keeping technology adopted by the farms. The feeding of breeding stock of animals of these breeds was carried out in accordance with established and accepted at experimental farms rations, which consisted of the presence and number of harvested at farms feed. Obtained materials indicate the plasticity and the ability to control the system reproduction reproductive population in modern economic conditions farms. Attention is paid not only to purely selective approaches, but also an attempt is made to substantiate the necessity of adapting breeding breeds to modern systems of economic relations. Knowledge of the ethology of Aberdin-Angus and gray Ukrainian breeds in the conditions of the forest-steppe and steppe zones of Ukraine will allow controlling the processes of reproduction of mother and repair animals in livestock breeding herds, as well as the conservation of genetic resources of aboriginal breeds.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 420-421
Author(s):  
Sandy Johnson ◽  
John Holman

Abstract Our objective was to compare two systems of pre-breeding heifer development, drylot (D) or grazing winter triticale (T) on heifer fertility. In each of 4 years (yr), Black Angus heifers (n = 168, 86, 97 and 103, respectively) were allotted to treatment (trt) 32 to 50 days (d) prior to artificial insemination (AI). Each year a 14-d CIDR PG protocol was used to synchronize estrus (d-30 to d-16: 1.38 g progesterone intravaginal insert, CIDR; d 0: 25 mg dinoprost tromethamine injection; + 66 hours: 100 µg gonadorelin hydrochloride injection, and AI). Starting body weight and body condition were similar between treatments but differed by year (P &lt; 0.01). After CIDR removal, 83% were in estrus by d -10 and did not differ with trt or yr. Weight at AI was greater (P &lt; 0.01) for T (384 kg ± 2) than D (378 kg ± 2) with a trt by yr interaction. Body condition change between start of treatment and AI was greater (P &lt; 0.01) for T (0.44 ± 0.03) than D (-0.02 ± 0.04) with a trt by yr interaction (P &lt; 0.01) due to the magnitude of difference. A trt by yr interaction occurred for estrous response before AI (P &lt; 0.01). Treatment means for AIPR were 59.1% (143/242) for D and 42.1% (101/240) for T (trt; P &lt; 0.01). AIPR was similar between treatments in yr 1 and higher for D than T in subsequent yr (trt x yr, P &lt; 0.05). Blood urea nitrogen was greater (P &lt; 0.05) in T than D on d 0 and at AI. At the time of AI, triticale was more mature in yr 1 when there was no difference in AIPR. Grazing triticale during estrus synchronization and AI resulted in acceptable gains but decreased fertility in yearling beef heifers.


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