Growth performance of Awassi lambs fed calf milk replacer

Emsen, E.; Yaprak, Mustafa; Bilgin, Ömer; Emsen, Berna; Ockerman, Herbert W.

doi:10.1016/j.smallrumres.2003.08.018

Cited by 29 publications

(17 citation statements)

References 5 publications

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“…Nonetheless, Kum et al (2010) reported that the most suitable model for growth in Norduz lambs was Gompertz model in the determination of the best nonlinear growth model during the period from birth up to 180 th day. Emsen and Köycegiz (2004) showed that the most suitable model for Awassi and Morkaraman female lambs were Gompertz and Brody models during 11-month period. In another study, it was observed that the best nonlinear growth model for Morkaraman lambs until 360 th day was Gompertz model, whereas it was Bertalanffy model for Awassi lambs (Topal et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

Effects of some factors on growth of lambs and the determination of growth curve models

Yılmaz

Karakuş

Bingöl

et al. 2018

IJAR

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The aims were to identify the body weight of the several age groups in Norduz lambs and its correlations between these traits were to determine the best non-linear growth curve models for the growth performance of the Norduz sheep breed. A total of 91 male and female of Norduz lambs were evaluated under extensive system conditions. The least square means for weights at birth and at 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195 and 210 days of age periods were 4.51±0.56, 9.28±0. 25, 11.14±0.29, 14.99±0.37, 18.21±0.43, 22.54±0.54, 22.33±0.25, 23.59±0.54, 25.58±0.55, 28.07±0.58, 29.45±0.60, 29.98±0.84, 32.44±0.61, 32.03±0.59 and 31.45±0.57 kg, respectively. There were differences in favor of lambs of four-year old dams at 15 days of age and also lambs born single at 90 days of age for the body weight. The effect of weight of dam at birth, 30, 45, 60 days of age was significant (P< 0.05-P<0.01) and the birth weight in lambs importantly effected the weights at 15, 30, and 45 days of age.All correlations between the body weights of several age periods were significant as statistical (P<0.01). As for the growth models, distinguished models were compared using the coefficient of determination and mean square error for both sexes. As a result, we concluded that von Bertalanffy model were the best model in comparison with the other models for biological growth curves in Norduz male and female lambs.

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Section: Resultsmentioning

confidence: 99%

Effects of some factors on growth of lambs and the determination of growth curve models

Yılmaz

Karakuş

Bingöl

et al. 2018

IJAR

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“…It was the weaning stress caused by separating from their dams, changing of diets and feeding regime that limited the lamb growth ( Napolitano et al., 2008 ). Emsen et al. (2004) reported that lambs weaned at 2 or 3 days of age had a lower BW at 15 days of age than ewe-reared lambs.…”

Section: Discussionmentioning

confidence: 99%

Effects of weaning age on growth, nutrient digestibility and metabolism, and serum parameters in Hu lambs

et al. 2015

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This study was conducted to investigate the effect of weaning age on growth performance, nutrient digestion and metabolism, and serological indicators, and to obtain an optimal weaning age in Hu lambs. Forty-eight newborn Hu lambs (birth weight, 2.53 ± 0.14 kg) were randomly divided into 4 groups. The lambs in control group (ER) suckled their dams. The lambs in other three experimental groups were weaned on milk replacer at 10, 20, and 30 days of age (EW10, EW20, and EW30 groups), respectively. The results were as follows: 1) lambs in EW10 and EW30 groups had a lower (P < 0.05) ADG than those in ER group within 10 days post-weaning; the weaned lambs began to show a higher (P < 0.05) ADG than those in ER group after 20 days post-weaning. 2) EW10 and EW20 groups had a higher (P < 0.05) creep feed intake than EW30 and ER groups from 15 to 60 days of age. 3) The apparent digestibility of dry matter, organic matter, gross energy, nitrogen, ether extract and phosphorus, and the deposition of nitrogen and phosphorus did not differ (P > 0.05) among groups; however, the apparent digestibility and deposition of calcium in early weaned lambs were lower (P < 0.05) than those in ewe-reared lambs. 4) The albumin content in EW30 group was lower (P < 0.05) than that in ER group; the globulin content in EW30 group was higher (P < 0.05) than that in other groups; the content of serum insulin-like growth factor-Ⅰ in weaned lambs tended to increase compared with lambs in ER group. Finally, the growth rate of lambs decreased within 10 days post-weaning, but early weaning boosted creep feed intake, leading to better growth and health later in life. The Hu lambs can be weaned on milk replacer and creep feed at 10 days of age.

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“…Under this system, lambs are separated from their dams at an early age and then fed colostrum and milk replacer to increase the amount of milk available for processing into dairy products such as cheese or yogurt (Demiroren et al, 1995;Napolitano et al, 2008). Separating lambs from their dams early also simplifies their management (Emsen et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The effect of colostrum source (goat vs. sheep) and timing of the first colostrum feeding (2 h vs. 14 h after birth) on body weight and immune status of artificially reared newborn lambs

Hernández-Castellano

Morales-delaNuez

Sánchez-Macías

et al. 2015

Journal of Dairy Science

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Several factors can affect lamb body weight (BW) and immune status during the first days of life, including colostrum source and timing of the first colostrum feeding. The aim of this study was to evaluate the effects of colostrum source (goat or sheep) and timing of the first colostrum feeding (2 or 14 h after birth) on lamb BW and immune status. In this study, 40 lambs were removed from their dams at birth and randomly assigned into 4 groups of 10 lambs each. Lambs were subsequently fed at 2 or 14 h after birth with goat or sheep colostrum. Blood samples and BW recording were performed before feeding. Blood plasma was used to measure the immunoglobulin concentration (IgG and IgM), chitotriosidase activity, and complement system activity (total and alternative pathways). In general, no differences in any of the measured variables were observed among the 4 groups, indicating that neither colostrum source nor timing of the first colostrum feeding had an effect on these variables. These findings may improve management on lamb farms that raise animals under artificial conditions, because our results indicate that it is not necessary to feed colostrum to lambs immediately after birth and that goat colostrum may be used to feed newborn lambs.

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Growth performance of Awassi lambs fed calf milk replacer

Cited by 29 publications

References 5 publications

Effects of some factors on growth of lambs and the determination of growth curve models

Effects of some factors on growth of lambs and the determination of growth curve models

Effects of weaning age on growth, nutrient digestibility and metabolism, and serum parameters in Hu lambs

The effect of colostrum source (goat vs. sheep) and timing of the first colostrum feeding (2 h vs. 14 h after birth) on body weight and immune status of artificially reared newborn lambs

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