Peculiarities of the buffalo species for andrological evaluation   results of four years of study and weekly semen collection schedule

Henry, M.; Brito, Mayara Ferreira; Neves, Beatriz Parzewski; Auler, P.A.; Almeida, Jaci de; Andrade, G. O.; Becerra, Verônica Becerra; Bergmann, Luisa

doi:10.21451/1984-3143-ar0005

Cited by 11 publications

(12 citation statements)

References 15 publications

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“…The minimum and maximum ejaculate volumes of buffalo bulls observed in the study were 0.6 and 9.0 ml, respectively. Several reports have shown that semen ejaculate volume of Murrah buffalo bulls ranged between 2.78 and 5.0 ml (Bhakat, Mohanty, Raina, Gupta, & Khan, 2011; Bhakat et al., 2015; Henry et al., 2017). In this study, aggressiveness, penile erection and reaction time were not correlated with semen volume.…”

Section: Discussionmentioning

confidence: 99%

Serum kisspeptin: New possible biomarker for sexual behaviour and sperm concentration in buffalo bulls

Bhardwaj

Kumar

Adnot

et al. 2020

Reprod Domestic Animals

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The study was designed to decipher the inter‐relationship between peripheral hormones (kisspeptin and testosterone), sexual behaviour and seminal variables of Murrah buffalo bulls (n = 134). In this study, we recorded that 13%, 37%, 40%, 6% and 4% Murrah buffalo bulls had reaction time of <30, 31–60, 61–180, 181–300 and >300 s, respectively. Further, it was observed that 4%, 85% and 10% buffalo bulls were sexually aggressive, active and dull, respectively, during semen collection. The courtship behaviour was not found to be desirable for the bulls used for the semen collection. Mean of ejaculate volume, sperm concentration and mass motility (0–5 scale) were 3.57 ml, 977.11 million/ml, 2.7, respectively. Correlation studies revealed that the reaction time was positively correlated with courtship behaviour and body weight, and negatively correlated with sexual aggressiveness and sperm concentration. Serum kisspeptin in buffalo bulls, measured for the first time, was found to 3.8 ± 0.7 ng/ml. Serum kisspeptin and testosterone level are negatively correlated to each other and kisspeptin level influenced the sexual behaviour (reaction time, sexual aggressiveness and penile erection) of study bulls. Serum kisspeptin was higher in the buffalo bulls with higher sperm concentration indicating its role in spermatogenesis. In conclusion, for the first time basic information related to sexual behaviour of Murrah buffalo bulls in large population along with its inter‐relationship with peripheral hormones (kisspeptin and testosterone) has been documented.

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Section: Discussionmentioning

confidence: 99%

Serum kisspeptin: New possible biomarker for sexual behaviour and sperm concentration in buffalo bulls

Bhardwaj

Kumar

Adnot

et al. 2020

Reprod Domestic Animals

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“…Entretanto, nas condições brasileiras, a variação da circunferência escrotal pode ser de 24,5 cm a 34 cm em animais até 60 meses. Este fato nos remete que não há a padronização dos touros bubalinos e, que a seleção para melhoramento genético através do exame andrológico pode estar um pouco atrasada nas condições nacionais, quando comparada com os bovinos [8].…”

Section: Discussionunclassified

Testicular Parameters and its Influence in Buffaloes (Bubalus buballis) Sexual Behaviour

Hyppolito

Zorzetto

Silva-Junior

et al. 2019

Acta Scientiae. Vet.

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Background: Brazil is one of the greatest bovine meat exporter in the world. However, the technologies applied at buffalo's reproduction is not specific for this specie, adapted technics were established from the cattle breed. When the animal shows weight gain, gonadal and behavioral physiology fallow this tendency and the reproductive status become good and satisfactory. Thus, the aim of this study was to compare the reproduction characteristics of male buffaloes and its testicular parameters with sexual behavior. Materials, Methods & Results:Seven males Murrah breed with 67.29 ± 11.4 months of age were maintained at confinement for artificial shading. The testicular parameter was performed in restraint trunk and the sexual behavior evaluation was done with an estrus female. The sexual behavior was performed with an estrous female as a dummy. The testicular biometry was measured at the beginning and at the end of the experimental design, with the follow parameters: length, width, depth/thickness, scrotal circumference and the total volume. The data were submitted to the analysis of variance, and the means was compared with the Student-Newman-Keuls test, with significance difference P < 0.05 between the medians. The differences in the parameters were scrotal circumference (23.36 cm vs 24.86 cm), testicular length (8.71 cm vs 9.77 cm), right testicular width (8.57 cm vs 9.53 cm) and testicular volume (1.627.40 cm 3 vs 2.149,68 cm 3 ), respectively. The sexual behavior showed an increase in the Flehmen reflex, mounts (service capacity) and libido (2.00 vs 11.71; 0.57 vs 5.43; regular behavior vs very good behavior, respectively). Discussion: An increase in the testicular circumference was observed at the end of the experimental period with the values between 23.36 cm vs 24.86 cm. However, even with this increase of the testicular parameters it is lower than other male buffaloes with 36 months age. In Brazilian conditions, the testicular circumference variation is between 24.5 cm and 34 cm in animals with 60 months of age. These data shows that there are variations of the testicular parameters due to different systems of buffaloes breeding. When compared to cattle, buffaloes shows lower input of reproductive biotechnology. At the same way, the testicular growth and development depends of the nutrition and management used at the farm. In an inefficient system, buffaloes and bovine breeding could lose weight, testicular mass, and reduce testicular parameters. Besides that, the buffaloes can perform an improvement of a general condition when improvement of nutrition care occurs. The testicular parameters presents high correlation with the corporal and testicular development, which can be correlate to age and weight. Those parameters could help with the reproductive ability of the buffalo. The sexual behavior was increased and observed in the Flehmen reflex, service capacity and libido after the animal's adaptation to the reproductive management. The buffaloes are animals extremely adaptable to different conditions, but...

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“…After "Flehmen behavior" is confirmed the receptivity, exposure of the penis may occur, and the ejaculatory impulse is less intense than in bovine bulls. The buffalo's normal ejaculate is milky-white to yellowish and the appearance looks watery to creamy, depending on the concentration of spermatozoa, rarely exceeding 5 ml (Henry et al, 2017). Male buffalo are more sensitive to thermal stress than females due to their low heat regulation mechanism (Hameed et al, 2016a).…”

Section: Male Buffalomentioning

confidence: 99%

“…After this period, the genital system reaches its production of hormones and spermatozoa, producing an ejaculate with characteristics acceptable for freezing, this phase is called sexual maturation, which is achieved around 22 and 24 months of age, in a study with 456 male animals at this age with a minimum weight of 137.5 kg and a maximum weight of 540 kg of body weight. By analyzing the andrological evaluation in buffaloes, scrotal circumference (SC) has a fundamental value in the clinical-andrological exam, since it has a positive correlation with body weight and thoracic perimeter, and it is possible to predict the animal's reproductive capacity and its sperm production and their progeny (relation to sexual precocity) (Henry et al, 2017).…”

Section: Male Buffalomentioning

confidence: 99%

“…The clinical procedure for the andrological examination should consider the peculiarities between the different species. The buffaloes are like those used for all domestic ruminants, the heritable health of the animal is evaluated first, then general health, genital system normality, copulation ability and finally fertilization capacity (Henry et al, 2017).…”

Section: Male Buffalomentioning

confidence: 99%

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Reproductive Characteristics of Buffaloes: A Review

Pirondi¹,

Teixeira²,

Lima³

et al. 2019

JAS

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Interest in buffalo breeding has increased, due to certain advantages in relation to cattle breeding. The objective of this article was to review the reproductive biological characteristics of buffaloes. Buffaloes have their peculiarities regarding the reproductive characteristics, the females are seasonal polyestrous breeders of short days, the puberty’s buffalo is reached in ages more than in the bovine, the detection of the estrus is more difficult because of the estrus it happens at dawn and the females of buffalo have few physiological changes producers have difficulty detecting estrus. The gestation period varies between 300 and 320 days. Males have smaller external reproductive organs and less intense sexual behavior in relation to cattle. Buffalo females exhibit reproductive differences such as the hyperpigmented vulva and smaller and lighter, more rigid and tortuously inner structures with more muscle tone. There are some advantages in the creation of buffaloes were evidenced, such as their rusticity and adaptation to areas that would be unsuitableto cattle production, besides counting on products such as milk and meat of good quality. Several protocols of oestrus and ovulation synchronization have been adopted, to improve reproductive efficiency. These protocols have resulted in a pregnancy rates increase of 30% to 50%. It is concluded that buffalo breeding has space within the animal production system, especially in areas that would be suitable for the breeding of other ruminant species.

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Peculiarities of the buffalo species for andrological evaluation results of four years of study and weekly semen collection schedule

Cited by 11 publications

References 15 publications

Serum kisspeptin: New possible biomarker for sexual behaviour and sperm concentration in buffalo bulls

Serum kisspeptin: New possible biomarker for sexual behaviour and sperm concentration in buffalo bulls

Testicular Parameters and its Influence in Buffaloes (Bubalus buballis) Sexual Behaviour

Reproductive Characteristics of Buffaloes: A Review

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