Abstract
The study was conducted on six porcine males and thirty six semen ejaculates for its fertility assessment. The average length of the left and right testicle of the boars measured by ultrasonography was 9.47 ± 0.73 cm and 9.09 ± 0.65 cm, respectively. The sperm concentration/ml increased significantly as testicular diameter increased in size. The average length of right and left of boar testicle measured by Vernier caliper was 10.4 ± 0.57 cm and average width was 4.3 ± 0.14 cm. The average volume of boar semen was 115.00 ± 11.83 ml with milky colour. Thick consistency was observed in 83.3% semen samples whereas 16.6 % semen samples were having thin consistency. Out of 36 semen ejaculates, 16.6 % semen samples had density of DD where as 83.3 % had a density of DDD. The Mass activity, live percentage, percentage of morphologically abnormal spermatozoa and total sperm concentration in boar semen were 3 ± 0, 75.41 ± 2.07 %, 0 %, and 523 ± 60.07 million/ml, respectively. Mean percentage of hypo osmotic swelling test (HOS-Test) of semen found in the present study was 73.47 ± 2.26. The average time for reduction of resazurin dye from blue to violet was 1.805 ± 0.163 and from violet to pink was 9.944 ± 0.890. None of the sample change colour from pink to white. In the present study 36 ejaculates of boar semen were subjected for TVC of bacteria. In order to differentiate the bacterial species contaminating semen raw semen was placed on different agar plates. The species isolated with higher frequency in boar semen were of Staphylococcus species-83.3% (30 samples) followed by E.coli -63.8% (23 samples). Mean TVC obtained in this study was 45.13 × 10 3 .
Highlights
The challenges faced by the country in securing food as well as nutritional security to fast growing population need an integrated approach for livestock farming
Testes were freely movable within scrotum and no excess fluid was palpable. These observations were in accordance with those of Shipley (1999)
The species isolated with higher frequency in boar semen were of Staphylococcus species-83.3% (30 samples) followed by E.coli -63.8% (23 samples), this findings corroborate with those observed by Ciornei et al (2012) in boars
Summary
The challenges faced by the country in securing food as well as nutritional security to fast growing population need an integrated approach for livestock farming. Among the various livestock species, piggery is the most potential source of meat production and more efficient feed converters after broilers. Apart from meat it provides bristles and manure. Total pig population of India is only 11134. It is a need of hour that pig farmers should be trained for scientific rearing of the pigs to retain pig fecundity and production. Pigs farrow two times in a year with minimum eight piglets
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