Effect of different management systems on growth, endocrine parameters and puberty in Hereford female calves grazing Campos grassland

Guggeri, D; Meikle, A.; Carriquiry, M.; Montossi, F.; Barbieri, I. De; Viñoles, C.

doi:10.1016/j.livsci.2014.06.026

Cited by 24 publications

(31 citation statements)

References 30 publications

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“…Thus, animals subjected to very low nutrient levels up to nine months and receiving a significant increase in the ADG may delay the puberty after that age. In addition, heifers supplemented by creep-feeding for 50 days altered physiological and metabolical variables to induce a faster body development to an earlier attainment of puberty (Guggeri et al, 2014;Reis et al, 2015). Indeed, strategies to earlier diet supplementation during this early sexual maturation period are an important determinant of puberty in heifers.…”

Section: Discussionmentioning

confidence: 99%

Relationship of post-weaning growth and age at puberty in crossbred beef heifers

et al. 2017

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-This study was intended to evaluate body size structure and growth parameters of crossbred heifers fed at four nutritional levels to achieve puberty earlier. Animals were classified depending on their level of crossing between Nelore and Hereford and subjected to four nutritional levels (kg day -1 ) as follows: 0.5 (light; n = 32), 0.75 (medium; n = 32), 1.00 (high; n = 29), and 1.25 (very high; n = 27). Heifers at puberty and at weaning were individually classified for growth parameters. The fat thickness and longissimus muscle area throughout the experimental period were determined by ultrasonography. The height, heart girth, frame, and weight:height ratio were variables used to evaluate body traits. Univariate analysis of variance using the GLIM MIXED procedure os SPSS was performed and the significance level was set at 0.05. Age and body weight at puberty were 388±1.9 days and 331.4±1.3 kg, respectively. Body condition score demonstrated an interaction between nutritional level and crossbred degree. Heifers with the highest degree of Nelore had higher fat thickness and lower weight:height ratio compared with other racial groups at puberty. Pearson correlation coefficient showed a negative association for body condition score (-0.34) and fat thickness (-0.58) compared with age at puberty. The increased fat thickness at younger ages at puberty was observed in all racial groups. The increased weight:height ratio at younger ages at puberty was observed in all racial groups. We observed higher values for a frame in animals at the higher level of supplementation. There is a greater correlation between live weight gain and phenotypic traits during weaning to achieve puberty at an earlier age in crossbred heifers.

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Section: Discussionmentioning

confidence: 99%

Relationship of post-weaning growth and age at puberty in crossbred beef heifers

et al. 2017

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“…Age and Weight at Puberty of Ongole Grade Cattle (D. Maharani et al) 235 Sudrajad's (2013) research stated that cattle breeders in Kebumen usually wean calves at the age of 5 to 7 months, where Guggeri et al (2014) noted cattle that are weaned early will have a more substantial weight compared to those who are weaned traditionally. Guggeri et al (2014) suggested that calves that are weaned early and fed with high energy feed have an ADG exceeding 1kg/day.…”

Section: >07) the Growth Ratementioning

confidence: 99%

“…Guggeri et al (2014) suggested that calves that are weaned early and fed with high energy feed have an ADG exceeding 1kg/day.…”

Section: >07) the Growth Ratementioning

confidence: 99%

“…Rudolf (2010) stated that the first estrus will occur when the cattle reaches the minimum weight, rather than reaching a certain age. Puberty in cattle are influenced by genetics (Nogueira, 2004), feed and weaning age (Guggeri et al, 2014), maintenance management and climate (Chebel et al, 2007). These factors will indefinitely affect to body weight and cattle growth levels (Abeygunawardena and Dematewewa 2004).…”

Section: Vaginal Smear Testmentioning

confidence: 99%

“…These factors will indefinitely affect to body weight and cattle growth levels (Abeygunawardena and Dematewewa 2004). Limited feeding will lead to the late of puberty, while the giving of supplements into the cattle feed will increase growth and accelerate the start of puberty (Guggeri et al, 2014). …”

Section: Vaginal Smear Testmentioning

confidence: 99%

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Predicting the age and weight at puberty of Ongole Grade cattle using nonlinear mathematical model in Kebumen Farmer Association

Maharani

Amrullah

Widayati

et al. 2017

J. Indonesian Trop. Anim. Agric.

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ABSTRAKPenelitian ini bertujuan untuk mengevaluasi penggunaan model matematika non-linear dalam memprediksi umur dan bobot saat pubertas sapi Peranakan Ongole (PO). Data yang digunakan berupa catatan bobot badan (768) ABSTRACTThis research is aimed to evaluate the nonlinear mathematical model in predicting the age and weight of Kebumen Ongole Grade (PO) cattle at puberty. The data used in this research was weight recordings of (768) PO cattle, ranging from calf (< 1 month) to adult (60 months), collected by Kebumen PO cattle Breeder Association (ASPOKEB) from 2013 to 2015. These cattle were reared by a group of farmers located in six sub-districts: Mirit, Lembu Purwo, Ambal, Puring, Petanahan, and Klirong in Kebumen district, Jawa Tengah Province. Brody, Bertalanfy, Logistic and Gompertz mathematical models were used to analyze the data. The analysis showed that the R 2 of the four models classify high in the category (R 2 >0.70). Mature weight (A) of PO cattle predicted by Logistic (349 kg) and Gompertz (358 kg) were most appropriate. Out of the four models, the Logistic model was the most accurate in predicting the weight at puberty (174 kg) of PO cattle, but all observed cattle are still in the follicular phase.

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Dynamics of forage mass, air temperature and animal performance in a silvopastoral system of Uruguay

et al. 2018

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Effect of different management systems on growth, endocrine parameters and puberty in Hereford female calves grazing Campos grassland

Cited by 24 publications

References 30 publications

Relationship of post-weaning growth and age at puberty in crossbred beef heifers

Relationship of post-weaning growth and age at puberty in crossbred beef heifers

Predicting the age and weight at puberty of Ongole Grade cattle using nonlinear mathematical model in Kebumen Farmer Association

Dynamics of forage mass, air temperature and animal performance in a silvopastoral system of Uruguay

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