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Tropentag, September 14 - 16, 2022, Prague

"Can agroecological farming feed the world? Farmers' and academia's views."


The study of complete feed blocks preparation methods based on the use of strawberry hay and pea straw (ration of forage) and their effect on the performance of fattening calves

Taimour Tanha, Mokhtar Fathi, waisi kamal

Payame Noor University, Dept. of Agriculture, Iran


Abstract


In order to investigate complete feed blocks based on agricultural residues (strawberry and pea straw) and the effect of their consumption on the performance of fattening calves, an experiment was conducted on a herd (OnFarm) with 18 male Simmental calves with an average body weight of 285.16 ± 38.15 kg was selected in a completely randomised design with three treatments and six replications and was randomly assigned to 18 individual locations for 3 months. Experimental diets include: Treatment 1) Complete food block without agricultural residue (control); Treatment 2) Complete feed block contained agricultural waste (strawberry plant) and Treatment 3) Complete feed block contained agricultural waste (chickpea straw). The diets were the same in terms of energy and protein. During the experimental period, the calves were fed with appetite and the superior characteristics of fattening include: body weight, dry matter intake, daily weight gain, feed conversion ratio and other traits such as: digestibility of dry matter and nutrients, urine pH Stool, stool consistency assessment, blood parameters including glucose, triglyceride, cortisol, albumin, blood urea nitrogen and behavioural parameters (eating time, chewing time and rest time) were measured and measured. The results showed that the mean feed conversion ratio, body weight and daily weight gain for all three similar treatments and no significant difference was observed (p≥0.05). Only in the dry matter consumption which was significantly different for control treatment 12.54 and treatment B, 11.14 and treatment C, 10.57 kg (p≤0.05). The effect of different treatments on the average nutritional behaviour between treatments, no significant difference was observed in feeding and resting factors (p≥0.05). However, in ruminant condition, a significant difference was observed between control and C treatment (p≤0.05). No significant difference was observed in other treatments (p≥0.05). Regarding cortisol, however, no significant difference was observed between treatments (p≥0.05). However, the values obtained in the control treatment were 43.82 and in the two treatments B and C, respectively: 32.9 and 32.41, which were lower than the control treatment.


Keywords: Agricultural residue, blood metabolite, complete feed block, fattening calf, fattening performance, nutritional behaviour


Contact Address: Taimour Tanha, Payame Noor University, Dept. of Agriculture, The West of Shaid Bagheri, Tehran, Iran, e-mail: tanha1351@yahoo.com


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