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

Landaeta-Hernández, Antonio; Palomares-Naveda, R.; Soto-Castillo, G.; Atencio, A.; Chase, C. C.; Chenoweth, Peter J.

doi:10.1111/j.1439-0531.2004.00515.x

Cited by 19 publications

(7 citation statements)

References 37 publications

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“…Most knowledge has relied on the many studies reporting behavioral signs in HF cows (Van Vliet and van Eerdenburg, 1996;Kerbrat and Disenhaus, 2004). Hammond (1927), Trimberger (1948), and Hurnik et al (1975) found no differences in estrous expression between breeds, but few recent studies address these questions (Cutullic et al, 2009), and several of them compare beef breeds (Rae et al, 1999;Landaeta-Hernández et al, 2004).…”

mentioning

confidence: 99%

Comparison of Holstein-Friesian and Norwegian Red dairy cattle for estrus length and estrous signs

Sveberg

Rogers²,

Cooper³

et al. 2015

Journal of Dairy Science

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This study addressed the effect of breed on estrus length and estrous behavior by observing 20 Holstein-Friesian (HF) and 20 Norwegian Red (NRF) cows on an outdoor wood-chip pad through 1 estrous cycle (22d). Detailed behavioral data were collected by continuous (24 h) video monitoring of all cows. Accurate estimation of duration of estrous periods, behavioral signs (sum per period and counts per hour), and duration and number of sexually active groups were reported through all stages of mount estrus (prestand, standing estrus, and poststand). These dependent variables were analyzed with a basic statistical model that included fixed effects for breed and lactation group. Other independent variables (milk yield, body condition score, and number of cows in standing estrus) were added to the basic model one by one and included in an expanded model if they had an effect on the respective dependent variables. Estrus duration was considerably shorter in HF compared with NRF cows for all the major periods: mount estrus (11.2 ± 3.0 vs. 21.3 ± 2.7 h), standing estrus (7.1 ± 1.4 vs. 11.7 ± 1.3 h), mounting period (6.9 ± 2.7 vs. 18.2 ± 2.4 h), and mounted period (9.2 ± 2.8 vs. 17.5 ± 2.6 h). Additionally, the NRF cows spent more time in sexually active groups (36.1 ± 4.0 vs. 17.6 ± 4.8%) during standing estrus compared with HF cows. The NRF cows participated in a greater number of sexually active groups (9.6 ± 1.3 vs. 5.5 ± 1.3) with longer average duration (0.42 ± 0.04 vs. 0.20 ± 0.04 h) and continued to be more active in these groups through late stages of estrus (poststand) compared with the HF breed. Mounting activity differed between breeds as NRF mounted more times in total (46.3 ± 6.2 vs. 18.1 ± 6.3) and per hour (2.6 ± 0.4 vs. 1.5 ± 0.5) during mount estrus. In addition, NRF tended to express the primary estrous sign, standing when mounted, more often during standing estrus (32.4 ± 5.0 vs. 18.5 ± 5.2). The HF initiated more unsuccessful mounts (1.6 ± 0.3 vs. 0.6 ± 0.3) per hour than did NRF during mount estrus. A significant effect of milk yield was demonstrated only on this behavior. For other estrous signs, HF cows initiated chase-up (2.0 ± 0.5 vs. 0.5 ± 0.4) and anogenital sniff (3.7 ± 0.6 vs. 2.0 ± 0.5) more frequently (counts per hour), whereas NRF expressed more total head butt behavior (32.3 ± 4.7 vs. 14.2 ± 4.8) during mount estrus. Body condition score had a significant effect on receptive behavior. Measures of estrus duration, sexually active group activity, and behavior related to estrus should be subjected to larger studies for improved heat detection and possible implementation in breeding programs.

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mentioning

confidence: 99%

Comparison of Holstein-Friesian and Norwegian Red dairy cattle for estrus length and estrous signs

Sveberg

Rogers²,

Cooper³

et al. 2015

Journal of Dairy Science

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“…Behavioral signs of estrus can be observed in cattle and used for estrus detection for the purposes of artificial insemination (AI). However, these characteristics are influenced by age, milk yield, environment and hierarchy (revised in Landaeta-Hernández et al 2004). Additionally, differences can be noted among breeds (Rae et al 1999), and even among genetic groups (Bos indicus vs Bos taurus).…”

Section: Estrous Behaviormentioning

confidence: 99%

Physiological differences and implications to reproductive management of <I>Bos taurus</I> and <I>Bos indicus</I> cattle in a tropical environment

Sartori¹,

Bastos²,

Baruselli³

et al. 2010

Reprod Dom Rum

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In the current review the main fundamental biological differences in reproductive function between Bos taurus and Bos indicus cattle are discussed. Breed differences regarding puberty, estrous cycle patterns, estrous behavior, acquisition of ovulatory capacity, ovarian structures and reproductive hormones are presented. The main physiological differences that Bos indicus cattle present relative to Bos taurus cattle include: delayed age at puberty; higher circulating concentrations of hormones such as estradiol, progesterone, insulin and IGF-I, despite having smaller ovulatory follicle size and corpora lutea; greater population of small follicles and smaller size of the dominant follicle at deviation; and greater sensitivity of follicles to gonadotropins. Knowledge of the differences between Bos indicus and Bos taurus breeds help explain different management procedures and responses to hormonal treatments associated with artificial insemination, ovarian superstimulation, and in vivo and in vitro embryo production.

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“…Conversely, several studies have reported the effect of social organization on aspects such as feed intake [12,13], weight gain [14][15][16], milk yield [17,18], and estrus expression [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of biostimulation and social organization on the interval from calving to resumption of ovarian cyclicity in postpartum Angus cows

Landaeta-Hernández¹,

Meléndez²,

Bartolome³

et al. 2013

Theriogenology

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

Cited by 19 publications

References 37 publications

Comparison of Holstein-Friesian and Norwegian Red dairy cattle for estrus length and estrous signs

Comparison of Holstein-Friesian and Norwegian Red dairy cattle for estrus length and estrous signs

Physiological differences and implications to reproductive management of <I>Bos taurus</I> and <I>Bos indicus</I> cattle in a tropical environment

Effect of biostimulation and social organization on the interval from calving to resumption of ovarian cyclicity in postpartum Angus cows

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