Nitrogen balance, production performance, and plasma metabolites of lactating buffaloes in response to varying dietary protein levels

Akhtar, Muhammad Uzair; Hifzulrahman,; Imran, Muhammad; Pasha, T. N.; Khalique, Anjum; Saadullah, M.; Tahir, Muhammad Naeem; Ikram-Ul-Haq, M.; Naveed-ul-Haque, Muhammad

doi:10.1007/s11250-021-02883-0

Cited by 2 publications

(13 citation statements)

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“…Additionally, supplementation of prilled fat, specifically PA (C16:0), was reported to improve milk and fat yield [ 6 , 7 ]. Different studies of protein [ 8 , 11 ] and fat feeding [ 4 ] were reported in dairy buffaloes but their interaction effect has not been explored in lactating buffaloes. The fixed quantity of diets was offered for three reasons; firstly, duration of period in the present study was too short to observe the effects on intake completely (normally, a period of 6 weeks is considered sufficient).…”

Section: Discussionmentioning

confidence: 99%

“…The low fat (LF) treatment (2.6% EE/kg diet DM) had no supplementation of prilled fat. The diets were formulated using Cornell-Pen-Miner-Dairy 3.0.10 software based on Cornell Net Carbohydrate and Protein System version 5.0.2 for Holstein Friesian cows (developed at Cornell University, Ithaca, NY, USA; University of Pennsylvania, Philadelphia, PA, USA; and Miner Institute Chazy, NY, USA) on the basis of nutrient requirements established in previous studies of protein [ 8 , 11 ] and fat levels [ 4 ] in buffaloes. The diets were composed of 30% corn silage, 24% to 26% wheat straw, and 44% concentrate with or without 2% prilled fat, and offered in restricted amount in the form of total mixed ration once during 24 hours period at 0900 h. The details of ingredients used in the diets and their chemical composition are given in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

“…The non-fibrous carbohydrates were determined by formula = 100–(CP+NDF+EE+ash) according to NRC [ 5 ]. Energy-corrected milk (ECM), 4% fat-corrected milk (FCM) and protein-corrected milk (PCM) were estimated using the equations mentioned previously [ 8 ]. Feed efficiency = milk yield/DMI, gross efficiency of MP = milk protein yield/MP intake and metabolic efficiency of MP = milk protein yield/(MP intake –MP for growth, maintenance and pregnancy) were calculated.…”

Section: Methodsmentioning

confidence: 99%

“…Feed efficiency = milk yield/DMI, gross efficiency of MP = milk protein yield/MP intake and metabolic efficiency of MP = milk protein yield/(MP intake –MP for growth, maintenance and pregnancy) were calculated. Milk nitrogen efficiency (MNE) and Milk N (MkN) were calculated as: MNE = (N in milk/N intake)× 100 and Milk N = milk true protein/6.38 by using equations mentioned in Akhtar et al [ 8 ]. The marginal efficiency of fat was calculated as = fat yield/EE intake.…”

Section: Methodsmentioning

confidence: 99%

“…Literature relating to the addition of fat [ 4 ] and protein [ 8 ] to the diet of buffalo for improving production performance is available but their interaction effect has not been described in buffalo as per authors’ knowledge. It would be interesting to explore the interaction of fat with protein on the milk production and composition in buffalo.…”

Section: Introductionmentioning

confidence: 99%

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Effects of prilled fat supplementation in diets with varying protein levels on production performance of early lactating Nili Ravi Buffaloes

Anwar,

Khalique,

Hifzulrahman

et al. 2024

Anim Biosci

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Objective: The objective of the current study was to find out the independent and interactive effects of prilled fat supplementation with protein on the production performance of early lactating Nili Ravi buffaloes.Methods: Sixteen early lactating buffaloes (36.75±5.79 d in milk; mean±standard error) received 4 treatments in 4×4 Latin-square design according to 2×2 factorial arrangements. The dietary treatments were: i) low protein low fat, ii) low protein high fat, iii) high protein low fat, and iv) high protein high fat. The dietary treatments contained 2 protein (8.7% and 11.7% crude protein) and fat levels (2.6% and 4.6% ether extract) on a dry matter basis.Results: The yields of milk and fat increased with increasing protein and fat independently (p≤0.05). Energy-, protein-, and fat-corrected milk yields also increased with increasing protein and fat independently (p≤0.05). Increasing dietary protein increased the protein yield by 3.75% and lactose yield by 3.15% and increasing dietary fat supplies increased the fat contents by 3.93% (p≤0.05). Milk yield and fat-corrected milk to dry matter intake ratios were increased at high protein and high fat levels (p≤0.05). Milk nitrogen efficiency was unaffected by dietary fat (p>0.10), whereas it decreased with increasing protein supplies (p≤0.05). Plasma urea nitrogen and cholesterol were increased by increasing protein and fat levels, respectively (p≤0.05). The values of predicted methane production reduced with increasing dietary protein and fat.Conclusion: It is concluded that prilled fat and protein supplies increased milk and fat yield along with increased ratios of milk yield and fat-corrected milk yields to dry matter intake. However, no interaction was observed between prilled fat and protein supplementation for production parameters, body weight, body condition score and blood metabolites. Predicted methane production decreased with increasing protein and fat levels.

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