Social behaviour at and around oestrus of N'dama cows treated with prostaglandin F2α analogue, Cloprostenol

Kabuga, J. D.; Gyawu, P.; Asare, Kwame Kumi; Karikari, P.K.; Appiah, Patrick; Awunyo, K.; Kwarteng, F.A.

doi:10.1016/0168-1591(92)90001-r

Cited by 9 publications

(6 citation statements)

References 20 publications

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“…In nonsynchronized animals, estrus manifestation was 88.2% and 75.0% in winter and summer, respectively. Synchronized estrus response was similar to that reported by Hardin et al (1980), 83% and lower than that observed by Kabuga et al (1992), 93%, in Zebu type cows. The absence of estrus manifestation in some cows can be attributed to the ideal timing for application of the luteolytic agent.…”

Section: Resultssupporting

confidence: 70%

Estrus behavior in Guzera (Bos taurus indicus) breed cows

et al. 2009

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The estrus behavior was evaluated during an induced and natural subsequent estrus in twelve Guzera breed cows, in the winter and summer seasons in two consecutive years. The proportion of cows that responded to estrus synchronization was 84.8%. The effect of the interaction season x year of experiment on estrous cycle length was observed. Pro-estrus was longer in the summer (57.69±4.72h) and in the natural estrus (74.23±4.41h) than in the winter (38.95±4.02h) and in the induced estrus (22.40±4.36h). Estrus length was similar in the winter (11.48±0.70h) and in the summer seasons (13.40±0.82h) as well as among cows with induced (12.47±0.75h) and natural estrus (12.41±0.76h). The number of mounts accepted during estrus and the number of mounts accepted/ hour in estrus were similar in winter (29.17±2.86 and 2.59±0.22, respectively) and summer (31.45±3.36 and 2.42±0.26, respectively) as well as between induced (30.23±3.10 and 2.54±0.24, respectively) and natural estrus (30.40±3.14 and 2.47±0.24, respectively). The length and intensity of estrus were not influenced by synchronization or season of the year. Longer period of pro-estrus in summer may favor the identification of sexually active animals in this season. Index terms:Estrus synchronization, season of the year, zebu. RESUMOA manifestação do comportamento estral foi avaliada durante um estro induzido e o estro subseqüente, em 12 vacas da raça Guzerá, no inverno e no verão em dois anos consecutivos. A proporção de vacas que respondeu à sincronização de estros foi de 84,8%. Observou-se efeito de interação entre estação e ano sobre a duração do ciclo estral. O proestro foi maior no verão (57,69±4,72h) e no estro natural (74,23±4,41h), que no inverno (38,95±4,02h) e no estro induzido (22,40±4,36h). A duração do estro foi similar no inverno (11,48±0,70h) e no verão (13,40±0,82h), assim como entre as vacas com estro induzido (12,47±0,75h) e natural (12,41±0,76h). O número de montas recebidas durante o estro e o número de montas recebidas/hora em estro foram similares no inverno (29,17±2,86 e 2,59±0,22, respectivamente) e no verão (31,45±3,36 e 2,42±0,26, respectivamente), assim como entre o estro induzido (30,23±3,10 e 2,54±0,24, respectivamente) e o natural (30,40±3,14 e 2,47±0,24, respectivamente). A duração e a intensidade do estro não foram influenciadas pela sincronização ou pela estação do ano. O maior período de proestro no verão pode favorecer a identificação dos animais sexualmente ativos.Termos para indexação: Sincronização de estros, estação do ano, zebu.

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Section: Resultssupporting

confidence: 70%

Estrus behavior in Guzera (Bos taurus indicus) breed cows

et al. 2009

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“…Dominant-rank animals among N’dama cattle favor mounting other herd mates [ 14 ]. Similarly, in zebu herds, higher-ranking cows exhibit a shorter duration of estrus, as they are less likely to allow mounting than their lower-ranking herd mates [ 16 , 24 ].…”

Section: Discussionmentioning

confidence: 99%

“…In the dairy industry, social dominance is a promising factor for improving herd health, welfare, and reproductive management [ 13 ]. In Zebu, cows with a higher hierarchical rank order are the most active in mounting behavior and tend to avoid being mounted by cows with lower rank orders [ 14 , 15 ]. It has been reported that social order and breed influence prostaglandin F2α (PGF 2α )-induced estrus behavior, that dominant cows tend to have fewer total mounts received than subordinate and intermediate cows [ 16 ].…”

mentioning

confidence: 99%

Social effects on behaviorally-scored and pedometer-detected estrus in beef cattle

KUSAKA,

SAKAGUCHI

2024

Journal of Reproduction and Development

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The number of cows in estrus often influences estrus behavior; however, the effects of social order are not well documented. This study examined the effects of social order on the expression of behaviorally-scored and pedometer-detected estrus, combined with the effects of the number of cows in estrus. In a herd comprising 13 or 15 beef cattle, cows with orders 1st-7th were defined as dominant and the remaining cows as subordinate. Sole or simultaneous estrus was induced by prostaglandin F2α analog injection and/or intravaginal progesterone treatment. Ovulation timing was determined using ultrasonography at 6-hour intervals. Estrous signs and steps of the cows were recorded 49 h before ovulation using video monitoring and a pedometer, respectively. Among the 59 treated cows, 56 behaviorally-scored estruses (27 sole and 29 simultaneous) were detected. In the sole estrus, 61.5 % of the dominant-rank cows had no zero-point period; however, 35.7 % of the subordinate-rank cows had that period. The dominant-rank cows in estrus alone had a significantly shorter duration of scored estrus than those in simultaneous estrus (P < 0.05). Among the 50 pedometer-detected estruses (24 sole and 26 simultaneous), the subordinate-rank cows in sole estrus had a shorter interval from estrus onset to ovulation than the dominant-rank cows in simultaneous estrus (P < 0.05). The effects of social order varied in response to the number of cows in estrus, which might have influenced determining the optimal time for artificial insemination.

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“…1988). With N'Dama cows (a parent breed of S), Kabuga (1992) and Kabuga et al. (1992) also found mounting activity to be associated with social dominance.…”

Section: Interval From Last Pgf2α Dose To Oestrus Onsetmentioning

confidence: 96%

Social and Breed Effects on the Expression of a PGF2α Induced Oestrus in Beef Cows

Landaeta-Hernández

Palomares-Naveda

Soto-Castillo

et al. 2004

Reprod Domestic Animals

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Social organization and breed effects following PGF2alpha were studied in mature Angus, Brahman and Senepol cows allocated into two groups (each A = 5, B = 5 and S = 5). Variables including interval to oestrus onset (IEO), oestrous duration (DE), total mounts received (TMR), and oestrous intensity (IE) were derived via HeatWatch. Breed-type influenced IEO (B = 42.6 +/- 6.7 h; S = 54.6 +/- 6.0 h; and A = 27.8 +/- 5.8 h; p < 0.003). Within breeds, dominant B (69.4 +/- 13.3 h) and S (65.5 +/- 7.4 h) cows were slower (p < 0.05) to be detected in oestrus than subordinate (38.1 +/- 4.4 h) and intermediate (40.6 +/- 6.0 h). However, within A, dominant cows (16.4 +/- 12.5 h) were detected in oestrus earlier (p < 0.05) than intermediate (44.3 +/- 9.2 h) and subordinates (32.7 +/- 5.1 h). Angus (21.5 +/- 2.4 h) and B (22.1 +/- 3.0 h) cows had longer (p < 0.01) DE than S (9.1 +/- 2.8 h). Dominants (20.4 +/- 3.0) and intermediates (20.2 +/- 2.3 h) cows had longer DE (p < 0.04) than subordinates (12.1 +/- 2.1 h) although the interaction breed x social order showed that dominant S had shorter DE than dominant A and B (10.1 +/- 3.3; 34.8 +/- 6.0 h; and 20.0 +/- 6.4 h, respectively; p < 0.001). Angus cows had less TMR than B (p < 0.02) and tended to be less than S cows (p < 0.06). Overall, greatest (p < 0.008) IE occurred in the first 9 h after onset of oestrus with no breed effect (p > 0.05). Dominant cows tended (p < 0.10) to have less TMR (3.2 +/- 0.7 mounts) than subordinate (4.1 +/- 0.4 mounts) and intermediate (4.7 +/- 0.6 mounts) throughout, especially 3-6 h after oestrus onset (p < 0.07). Breed and social order both influence PGF2alpha-induced oestrus behaviour.

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Social behaviour at and around oestrus of N'dama cows treated with prostaglandin F2α analogue, Cloprostenol

Cited by 9 publications

References 20 publications

Estrus behavior in Guzera (Bos taurus indicus) breed cows

Estrus behavior in Guzera (Bos taurus indicus) breed cows

Social effects on behaviorally-scored and pedometer-detected estrus in beef cattle

Social and Breed Effects on the Expression of a PGF2α Induced Oestrus in Beef Cows

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