Particularities of the conditioning of buffalo bulls in semen collection with conventional artificial vagina for use in favorable and unfavorable breeding seasons

Almeida, J.; Brito, M.F.; Becerra, V.A.B.; Neves, B.P.; Auler, P.A.; Resende, O.A.; Henry, M.

doi:10.1590/1678-4162-13166

home Sumário navigate_before Anterior Atual Seguinte navigate_next

home Sumário

Original Article - Veterinary Medicine • Arq. Bras. Med. Vet. Zootec. 76 (4) • Jul-Aug 2024 • https://doi.org/10.1590/1678-4162-13166 linkcopy

Particularities of the conditioning of buffalo bulls in semen collection with conventional artificial vagina for use in favorable and unfavorable breeding seasons

[Particularidades do condicionamento de touros bubalinos em coleta de sêmen com vagina artificial convencional para uso em estações reprodutivas favorável e desfavorável]

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

This study aimed to evaluate the sexual behavior and accommodation characteristics of buffalo recipients patented for semen collection with an artificial vagina. Thirty bulls were sampled during favorable (March to May) and unfavorable (November to December) breeding seasons in a property located in the state of Minas Gerais, Brazil (Latitude 20°41'45'' South and Longitude 44°49'37'' West). Data were analyzed descriptively according to whether ejaculation was successful, using a range of behavioral parameters. A multilevel logistic regression analysis was performed using the responses and explanatory variables mentioned above. The results show that when more than three parameters are manifested, the chance of obtaining ejaculation increases by 9.0%, a value that rises to 28.2% when seven to nine parameters manifested by the breeders are observed. These observations allow us to conclude that it is possible to condition sexually mature bulls for semen collection through the artificial vagina for use in artificial insemination and fixed-time artificial insemination programs.

Keywords: sexual behavior; semen collection; reproductive management

Bulls	Parameters
Bulls	Race	Age (years)	ECC (1-5)	Weight (kg)	PE (cm)	Aspect	Volume (mL)	Tourbillon (0-5)	Motility (%)	Vigor (0-5)	Concentration (x10⁶/mL)	DM (%)	N (%)
1	Mur	9	4	900	40	milky	2.9	3	90	4	780	9	80
2	Mur	8	4	920	38	creamy	3.5	3	85	3	1960	10	80
3	Mur	6	3	740	37	creamy	3.2	4	95	5	1440	7	85
4	Mur	6	4	650	32.5	milky	4.0	3	80	4	660	11	83
5	Mest.	6	4	870	37.5	milky	3.5	4	90	5	1220	4	90
6	Med	11	3	750	40	aque.	3.0	3	90	5	1195	7	85
7	Mest.	9	3	890	39	aque.	2.1	2	60	2	315	17	65
8	Mur	9	4	840	38	aque.	1.1	2	50	1	125	21	65
9	Mur	4	5	1200	34	milky	2.1	3	70	2	360	10	80
10	Mur	3	3	700	33	aque.	1.4	1	60	2	165	12	75
11	Mest.	4	3	650	35	aque.	-	-	-	-	-	-	-
12	Mur	4	4	720	34	aque.	2.3	2	60	1	135	16	70
13	Mur	6	4	790	35	aque.	1.1	3	70	2	315	11	85
14	Mur	4	4	680	34	milky	0.8	2	60	1	280	19	75
15	Mur	4	3	700	35	aque.	1.1	1	70	2	330	10	80
16	Mur	11	3	820	36	milky	2.2	3	70	2	470	9	80
17	Med	3	3	580	32	aque.	1.4	1	60	1	115	13	75
18	Med	3	4	620	33	aque.	0.5	0	50	1	85	13	70
19	Mest.	5	4	650	35	milky	1.2	1	50	2	225	16	65
20	Mur	4	3	715	34	-	-	-	-	-	-	-	-
21	Mur	4	4	550	32	milky	1.5	2	70	2	500	10	75
22	Mur	4	3	600	31	aque.	2.0	3	70	2	490	11	70
23	Mur	5	4	750	30	milky	2.1	4	80	4	900	8	85
24	Mur	4	3	720	33	aque.	1.9	3	70	3	850	9	80
25	Med	3	3	630	32	milky	2.0	3	90	3	565	7	82
26	Mest.	4	4	660	33	-	-	-	-	-	-	-	-
27	Mur	5	4	715	34	aque.	3.3	3	85	3	490	9	81
28	Mur	4	5	835	36	aque.	1.5	3	75	2	398	10	79
29	Mur	5	4	735	35	milky	2.7	2	60	2	496	12	65
30	Mur	4	3	780	34	milky	3.6	4	70	3	668	9	79
X ±DV	-	5.4 ±2.3	3.6 ±0.6	745.3 ±129.4	34.7 ±2.3	-	2.1±1.0	2.5 ±1.1	71.5 ±13.4	2.6 ±1.3	575.3 ±449.0	11.1 ±3.9	77.2 ±7.1

Parameters	Number of attempts (%/n)									Accumulated (%/N)
Parameters	1	2	3	4	5	6	7	8	9	1-3	1-6	1-9	X/DV
Smelling urine in the soil	49.2 /63	58.0 /100	34.4 /125	16,7 /18	-	-	-	-	-	43.1 /360	44.1 /360	-	1.3±0.9
Smell vulva	100.0 /5	69.1 /55	47.8 /138	25.0 /92	20.0 /15	100.0 /1	-	-	-	35.6 /360	44.1 /360	-	1.3±0.9
Lick vulva	100.0 /4	92.0 /25	61.1 /72	39.6 /91	29.9 /77	13.8 /29	12.5 /8	-	-	23.2 /360	43.8 /360	44.1 /360	2.2±0.9
Flehmen reflex	100.0 /11	56.6 /113	37.1 /140	18.4 /38	33.3 /3	100.0 /1	-	-	-	41.5 /360	44.1 /360	-	2.2 ±0.8
Scratch your head on ♀	68.6 /67	40.2 /102	41.6 /89	24.4 /41	20.0 /5	0.0 /1	0.0 /1	-	-	40.5 /360	44.1 /360	-	1.4±0.9
Headbutt the ♀	53.9 /117	42.9 /105	33.3 /72	30.0 /10	0.0 /1	0.0 /1		-	-	43.1 /360	44.1 /360	-	0.9±0.8
Support the chin on the ♀	46.3 /149	50.5 /49	25.0 /52	40.0 /5	100.0 /1	-	-	-	-	43.1 /360	44.1 /360	-	0.7±0.9
Penile contraction	83.3 /10	100.0 /3	92.3 /13	91.2 /34	72.6 /51	46.8 /47	31.6 /38	14.7 /34	8.0/20	8.2 /360	37.6 /360	44.1 /360	0.8±0.9
Exposure of the penis	59.1 /132	41.8 /110	19.6 /56	0.0 /7	0.0 /1	-	-			44.1 /360	-	-	0.7±1.8
M. inc. w/o penis exp.	57.7 /156	36.5 /96	20.0 /50	0.0 /3	0.0 /1	-	-	-		44.1 /360	-	-	1.3±0.9

Parameters	Smell urine in soil	Smell vulva	Lick vulva	Reflection of Flehmen	Scratch the head on ♀	Headbutt on♀	Support the chin on ♀	Contraction penile	Exposure of the penis
Smell vulva	0.3291839^ns
Lick vulva	0.9706328^***	0.4980601^ns
Flehmen reflex	0.3445921^ns	0.9640989^**	0.4067813^ns
Scratch your head on ♀	0,7629877^ns	0.215457^ns	0.9427476^**	0.1425599^ns
Headbutt the ♀	0.7725079^ns	0.263288^ns	0.9434002^**	0.0991088^ns	0.8444553^*
Support the chin on the ♀	0.1594234^ns	-0.5929301^ns	0.315879^ns	-0.4454725^ns	-0.4506901^ns	-0.7391352^ns
Penile contraction	0.7699267^*	0.5358988^ns	0.8460538^**	0.471928^ns	0.8037585^**	0.8037663^**	0.6634858^*
Exposure of the penis	0.8847054^ns	0.5508588^ns	0.9516336^***	0.465555^ns	0.931495^*	0.9724389^*	-0.3291481^ns	0.5859942^*
Mounts incompl./ penis exp.	0.844991^ns	0.5545297^ns	0.9439896^***	0.4747785^ns	0.9569032^**	0.9753304^*	-0.3461315^ns	0.5790225^ns	0.9888312^**

Variable	Odds ratio	EP	P
0-2 parameters	1	Reference class
3 to 6 parameters	9.0	1.8	0.07
> 6 parameters	28.2	2.7	0.00
Variance between bulls	1.2	-	-

Bulls (n)	Ejaculation (%/n)		Jumps (%/n)
Bulls (n)	Successful attempts	Unsuccessful attempts	Attempts effected	Attempts refused
24	57.3(165)	42.7(123)	50.4(145)	49.7(143)

vertical_align_top file_download show_chart

more_horizclose
- image
- translate
- link
- article
- vertical_align_top
- file_download
- show_chart
- image
- translate
- link
- article

location_on

Universidade Federal de Minas Gerais, Escola de Veterinária Caixa Postal 567, 30123-970 Belo Horizonte MG - Brazil, Tel.: (55 31) 3409-2041, Tel.: (55 31) 3409-2042 - Belo Horizonte - MG - Brazil
E-mail: abmvz.artigo@gmail.com

rss_feed Acompanhe os números deste periódico no seu leitor de RSS

Acessibilidade / Reportar erro

[TFN1] Aque. = aqueous; ECC: body condition score; PE: scrotal perimeter; DM: major defects; N: normal; Mur: Murrah; MED: Mediterranean; Mest.: Mestizo; X: average and DV: Standard deviation.