Effects on reproduction of estrous cycle variations, rectal temperatures and liveweights in mated Brahman cross heifers

Holroyd, R. G.; Entwistle, KW; Shepherd, RK

doi:10.1016/0093-691x(93)90399-p

Cited by 10 publications

(14 citation statements)

References 16 publications

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“…The average preweaning mortality on 2007, 2008 and 2009 were 15.56; 6.67 and 2.50%, respectively. It has been suggested that the preweaning mortality rates of at least 30% is normal for cattle in the tropics (Holroyd et al, 1993). This result is in contrast with the previous study by Riley et al (2004) who reported that the year had effect on preweaning mortality in Brahman calves.…”

Section: Preweaning Mortalitycontrasting

confidence: 57%

Non Genetic Factors Effect on Reproductive Performance and Preweaning Mortality From Artificially and Naturally Bred in Bali Cattle

Gunawan

Sari

Parwoto³

et al. 2011

J. Indonesian Trop. Anim. Agric.

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The aim of this study was to evaluate effect of non genetic factors on reproductive performance of Bali cattle. Data on reproduction performance were collected from Breeding Centre of Bali Cattle in Denpasar-Bali. Reproductive traits studied were age at first calving (AFC), calving interval (CI) and pregnancy rate (PR). To observe the effect of non genetic factors on the reproductive traits, a mixed model was used because all of the traits studied were measured repeatedly in individuals. The overall means for AFC, CI, PR and preweaning mortality were 43.86±0.70 months, 360.93±4.47 days, 88.44±1.91% and 7.58±1.07%, respectively. The results showed that AFC and PR were significantly (P<0.01) influenced by dam year of birth but mating system had no significant (P>0.05) effect. With regard to CI, dam year of birth and parity affected CI while mating system had no significantly affect (P>0.05) on CI. The preweaning mortality was only affected by the age of dam significantly (P<0.01). The average of reproductive performance and preweaning mortality in Bali Cattle were not depended remarkably on the mating system being practiced. It might be concluded that an improvement in Bali cattle reproductive traits is possible through improving management systems and utilisation of controlled breeding techniques.

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Section: Preweaning Mortalitycontrasting

confidence: 57%

Non Genetic Factors Effect on Reproductive Performance and Preweaning Mortality From Artificially and Naturally Bred in Bali Cattle

Gunawan

Sari

Parwoto³

et al. 2011

J. Indonesian Trop. Anim. Agric.

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“…Embryo mortality rates have been reported in a number of sub-tropical and tropical research studies. These included mortalities of 31% (4/14), 25% (3/12) and 38% (5/13) in small numbers of Brahman cross, Africander cross and British cross cows, respectively, in central Queensland (both EEM and LEM; Donaldson, 1971); 16.9% (14/83) in zebu cross cows in central Queensland (inferred LEM; Turner, 1982); and 25% (11/44) and 31.8% (14/44) in 50% and 75% Brahman cross heifers, respectively, in north Queensland's dry tropics (inferred LEM; Holroyd et al, 1993). In two international studies, embryo mortalities in B. taurus beef heifers in temperate environments accounted for more than 30% (Diskin and Sreenan, 1980) and 25-28% (Roche et al, 1981) of reproductive inefficiency in heifers.…”

Section: Embryo Mortalitymentioning

confidence: 99%

A review of factors that impact on the capacity of beef cattle females to conceive, maintain a pregnancy and wean a calf—Implications for reproductive efficiency in northern Australia

Burns

Fordyce²,

Holroyd

2010

Animal Reproduction Science

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135

128

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A review of factors that may impact on the capacity of beef cattle females, grazing semi-extensive to extensive pastures in northern Australia, to conceive, maintain a pregnancy and wean a calf was conducted. Pregnancy and weaning rates have generally been used to measure the reproductive performance of herds. However, this review recognises that reproductive efficiency and the general measures associated with it more effectively describe the economic performance of beef cattle enterprises. More specifically, reproductive efficiency is influenced by (1) pregnancy rate which is influenced by (i) age at puberty; (ii) duration of post-partum anoestrus; (iii) fertilisation failure and (iv) embryo survival; while (2) weight by number of calves per breeding female retained for mating is influenced by (i) cow survival; (ii) foetal survival; and (iii) calf survival; and (3) overall lifetime calf weight weaned per mating. These measures of reproductive efficiency are discussed in depth. Further, a range of infectious and non-infectious factors, namely, environmental, physiological, breed and genetic factors and their impact on these stages of the reproductive cycle are investigated and implications for the northern Australian beef industry are discussed. Finally, conclusions and recommendations to minimise reproductive inefficiencies based on current knowledge are presented.

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“…Pregnancy occurs after an average of two matings and it has been speculated because of embryonic mortality of at least 30% (Fordyce et al. 2002) which is normal in the tropics (Holroyd et al. 1993).…”

Section: Bali Cattlementioning

confidence: 99%

Banteng and Bali Cattle in Indonesia: Status and Forecasts

Purwantara

Noor

Andersson

et al. 2011

Reprod Domestic Animals

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Running title: Bali cattle breeding: state of the art ContentsBali cattle still represents 27% of the total cattle population in Indonesia, and it is considered the pillar breed for small farmers. Moreover, it is a breed of evolutionary importance regarding its direct ancestry from Banteng. However, there is a need for the establishment of a rational system for the evaluation of breeding soundness for indigenous Bali bulls to be used as sires for artificial insemination breeding programmes. Moreover, there is a need for cryobanking of well identified genetic resources pertaining their use in evolutionary research and application as essential germplasm in breeding programmes.Key words: livestock rearing, banteng, bali cattle, breeding, Indonesia. IntroductionCattle production in Indonesia is generally based on indigenous and imported breeds, the first named usually extensively managed on natural pasture. Bali cattle (Bos sondaicus, Bos javanicus, Bos/Bibos banteng), a domesticated descendant of the wild Banteng (Bibos banteng) represents about 27% of the total cattle population in Indonesia (about 11 million heads in 2004). Bali cattle is the most preferred in the small holding system, due to their rusticity, fertility and low calf mortality and breeding programmes have slowly been built in the country using artificial insemination (AI) with frozen-thawed semen from, largely, phenotypically-selected bull sires. Owing to the randomized application of expansion programmes, and the presence of ill-explored remnants of Banteng colonies in national parks, there is no detailed knowledge of the genetic complexity and purity of these individual species, a pre-requisite when cryobanking of genetic resources and/or their application in breeding programmes is to be attempted. BantengBanteng (Order: Artiodactyla, Family: Bovidae, Subfamily: Bovinae, Genus: Bos, Subgenus: Bibos), an endangered asian wild cattle, is most likely the ancestor to the domestic cattle of Southeast Asia (Nowak, 1991). Banteng is a sexually-dimorphic species, with mature males Swedish Links Indonesia Symposia 2010-2011-ChapterKM-GA-2011 2 being dark chestnut brown and cows and juveniles reddish brown. Both sexes have white rump patches and leggings, carry horns, the latter being much more heavier and larger in males. Adult male Bantengs weigh between 600 and 800 kg, while adult females range 590-670 kg. Their average lifespan in the wild is 11 years, although they can live to 20-25 years of age. It is very common for captive banteng to live into their late teens or mid-twenties. The world population of Banteng is considered to range 5-8,000 heads (2000 IUCN Red Data List) being located in Bangladesh, Brunei Darussalam, Cambodia, India, Indonesia (Kalimantan, Java and Bali), Lao People's Democratic Republic, Malaysia, Myanmar, Thailand and Viet Nam (see map) (Wilson and Reeder, 1993) The known subpopulations in the wild are small (5-6 stable subgroups in Java, having more than 50 Banteng/group) and decreasing in most countries (illegal hunting and ha...

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Effects on reproduction of estrous cycle variations, rectal temperatures and liveweights in mated Brahman cross heifers

Cited by 10 publications

References 16 publications

Non Genetic Factors Effect on Reproductive Performance and Preweaning Mortality From Artificially and Naturally Bred in Bali Cattle

Non Genetic Factors Effect on Reproductive Performance and Preweaning Mortality From Artificially and Naturally Bred in Bali Cattle

A review of factors that impact on the capacity of beef cattle females to conceive, maintain a pregnancy and wean a calf—Implications for reproductive efficiency in northern Australia

Banteng and Bali Cattle in Indonesia: Status and Forecasts

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