Erratum to: Effects of feeding different dietary protein and energy levels of the performance of 12−15-month-old buffalo calves     

Shahzad  Muhammad Aasif  Tauqir  Nasir A.  Ahmad  Fayyaz  Nisa  Mahr U.  Sarwar  Muhammad  Tipu  Murtaza A. 《Tropical animal health and production》2011,43(4):899-899

Tropical Animal Health and Production -  相似文献   

Effects of feeding different dietary protein and energy levels on the performance of 12–15-month-old buffalo calves     

Shahzad MA  Tauqir NA  Ahmad F  Nisa MU  Sarwar M  Tipu MA  Tipu MA 《Tropical animal health and production》2011,43(3):685-694

The study investigated the performance response of different dietary protein and energy levels of Nili-Ravi buffalo calves. Sixty buffalo calves of 12–15 months of age and similar body weight (140 ± 14 kg) were divided in to 12 groups, five animals in each group, according to 4 × 3 factorial arrangements. Twelve rations were formulated containing four levels of crude protein (CP; 10.5%, 12.20%, 13.80%, and 15.55%) each with three levels (1.72, 2.11, and 2.5 Mcal/Kg) of metabolizable energy (ME). Experiment lasted for 100 days; first 10 days were given for dietary adaptation. Daily feed consumption in calves fed all experimental diets were statistically significant (p < 0.05) across all treatments. Higher feed intake was observed in buffalo calves fed diets containing 12.20% and 13.85% CP with 2.11 Mcal/kg ME. Results of dry matter (DM) digestion were significantly different (p < 0.05) across all treatments. There was a quadratic (p < 0.05) response of DM digestibility for levels of dietary protein while, curvilinear (p < 0.05) trend with respect to dietary energy levels. Daily weight gain of buffalo calves did not show any treatment effect. The outcome of the present study indicate that 12–15-month-old buffalo calves perform adequately well when fed on diets containing 12.2% CP and 2.10 ME Mcal/Kg.  相似文献   

Effects of increasing dietary protein supplies on milk yield,milk composition,and nitrogen use efficiency in lactating buffalo     

Naveed-ul-Haque  Muhammad  Akhtar  Muhammad Uzair  Munnawar  Rizwan  Anwar  Saba  Khalique  Anjum  Tipu  Murtaza Ali  Ahmad  Fayyaz  Shahid  Muhammad Qamer 《Tropical animal health and production》2018,50(5):1125-1130

Nitrogen efficiency of lactating buffalo can be increased by providing dietary crude protein (CP) precisely to the requirement. Twelve lactating Nili-Ravi buffaloes (6 primiparous and 6 multiparous) at 76?±?37.5 days in milk (DIM) were used in this study. The treatments were diets providing three levels of CP (% DM basis): (1) low-protein?=?11%; (2) medium-protein?=?13.1%; (3) high-protein?=?14.2% according to a 3?×?3 Latin square design. The period length of each treatment was 21 days and the total duration of experiment was 63 days. The diets were designed to provide similar energy. The nitrogen intake of buffalo increased linearly by increasing CP levels. Dry matter intake showed a tendency toward decrease in quadratic fashion, whereas milk yield decreased linearly in high-protein diet. No effect was observed on milk protein yield and content. Increasing the dietary CP levels increased plasma urea nitrogen, whereas glucose and triacylglycerol levels remain unaffected. Efficiency of dietary nitrogen utilization to milk averaged 21% and showed both linear and quadratic decreases by increasing the protein supply levels. In conclusion, low CP level showed higher milk production with low plasma urea nitrogen and high nitrogen efficiency in this experiment.

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