Proximate analysis showed that crude protein (CP) content of dried
Moringa oleifera stem (12.19%) was comparable to concentrate mixture (16%) and green fodder (berseem, 14%) (Table 2), indicating its potential as a valuable, moderate-protein feed resource in cattle diets. Similar CP values were reported by
Shih et al., (2011) and
El-Esawy et al. (2018), although lower values were noted by
Olaofe et al., (2013). The lower CP content compared to
M. oleifera foliage reported by
Sultana et al., (2015) may be due to the use of stems instead of leaves. Crude fibre (16.53%) and ether extract (2.52%) values were comparable with previous reports (
El-Esawy et al., 2018;
Navarro et al., 2019). Variations in composition may be attributed to plant maturity, harvest stage, season and agro-climatic conditions.
Effect of feeding moringa stems on milk production and its composition
Milk yield of Sahiwal cows during the experimental period is presented in Table 3 . Milk yield ranged from 3.95 ± 0.39 to 5.20 ± 0.60 kg/day in the control group (T
0) and from 4.98 ± 0.29 to 6.26 ± 0.43 kg/day in the moringa-supplemented group (T
1). Although differences were statistically non-significant, the overall mean milk yield was higher in T
1 (5.77 kg/day) than in T
0(5.04 kg/day), indicating a 14.48% improvement. This increase is likely attributed to the high nutritional value and phytosterol content of
Moringa oleifera (Athira et al., 2024), consistent with findings of
Dong et al., (2019). Milk SNF percentage ranged from 7.59-12.55% in T
0 and 7.59-17.78% in T
1, with higher average SNF in the treatment group (Table 3). Milk fat percentage ranged from 3.08–5.68% in T
0 and 3.25-3.90% in T
1, showing numerically higher values in the moringa-fed group (Table 3). Milk protein content was higher in T
1 (3.74%) than in T
0 (3.20%), although differences were non-significant (Table 3). Lactose percentage also showed a numerical increase in the moringa group (Table 4). Overall, replacement of 20% concentrate dry matter with dried
Moringa oleifera stem resulted in numerically higher milk yield and improved milk composition without adverse effects, indicating its potential as a cost-effective feed resource for lactating cows.
Effect of feeding dried Moringa oleifera stems on haematological parameters
Hematological parameters
Total erythrocyte count (TEC; ×
106/mm³)
Mean TEC values before parturition were slightly lower in the treatment group (5.34 ± 0.30) compared to control (5.46 ± 0.38), while at parturition TEC was higher in moringa-supplemented cows (5.49 ± 0.29 vs. 5.20 ± 0.28), indicating a possible hematinic effect. Post-partum TEC values were comparable between groups (4.65 ± 0.27 and 4.72 ± 0.22). Differences were statistically non-significant and all values remained within normal physiological ranges (
Smith, 2002), suggesting that
Moringa oleifera stem supplementation maintained normal health status. Similarly, in other ruminants like goats, high
Moringa inclusion safely improves production without altering hematological profiles
(Sagaf et al., 2025). Similar trends were reported by
Ali (2017) and
Yusuf et al. (2018) (Table 5).
PCV (Packed cell volume)
Mean PCV values before parturition were 30.45 ± 0.78% in the control group and 27.56 ± 0.81% in the treatment group, with significantly lower values in the latter, possibly due to dietary change (Table 4). At parturition, PCV values were 27.66 ± 1.06% (T
0) and 29.78±1.13% (T
1), while post-partum values were 26.91±1.19% and 25.56 ± 1.03%, respectively. All values remained within normal physiological range (24-46%) (
Smith, 2002), indicating no adverse health effects. Similar findings were reported by
Haridas (2018), while
Meel et al., (2018) observed increased PCV following moringa supplementation. The improvement may be attributed to the hematopoietic properties of
Moringa oleifera, rich in essential amino acids, vitamins and minerals, particularly iron (
Foidl and Paull, 2008).
Total leucocyte count (/cmm)
Mean TLC values before parturition were 13,233±1506.35/cmm (control) and 10,666.67 ± 1566.87/cmm (treatment). At parturition, TLC values were 10,933.33±1295.29/cmm and 10,466.67 ± 1444.68/cmm, while post-partum values were 13,333.33 ± 807.74/cmm and 9,200±609/cmm, respectively (Table 5). Differences between groups were non-significant and all values remained within normal physiological ranges, indicating no adverse immune effects of
Moringa oleifera stem supplementation. Similar observations were reported by
Yusuf et al., (2018), though
Meel et al., (2018) noted reduced TLC at higher moringa inclusion levels.
Effect of feeding dried Moringa oleifera stems on Biochemical parameters
Serum glucose
Mean serum glucose levels before parturition were 73.5 ± 2.55 mg/dl (control) and 58.0±2.38 mg/dl (moringa group), showing a significant effect of
Moringa oleifera stem on blood glucose stabilization (Table 5). At parturition, glucose levels were 62.7 ± 8.04 mg/dl and 55.5±6.74 mg/dl, while post-partum values were 69.5 ± 3.81 mg/dl and 60.16±5.74 mg/dl, respectively. All values remained within normal physiological range (45-75 mg/dl)
(Kaneko et al., 2008). Lower glucose levels in the moringa-fed group may be attributed to bioactive compounds such as chlorogenic acid and flavonoids with hypoglycaemic effects
(Farooq et al., 2007). Similar trends were reported by
Zeng et al., (2017) and
Meel et al., (2018).
Aspartate amino transferase (AST)
Aspartate aminotransferase (AST) is a key indicator of liver function. Mean AST values before parturition were 72.86 ± 3.64 U/L (control) and 66.70 ± 4.70 U/L (moringa group). At parturition, values were 82.69 ± 9.67 U/L and 78.31 ± 6.94 U/L, while post-partum values were 89.99 ± 3.81 U/L and 97.67 ± 8.22 U/L, respectively (Table 5). Differences between groups were non-significant and all values remained within normal physiological range
(Kaneko et al., 2008), indicating normal liver function. Similar findings were reported by
Khalel et al., (2014) and
El-Esawy et al. (2018), although
Mahmoud (2013) observed a significant effect of moringa supplementation. The results suggest no adverse hepatic effect and possible hepatoprotective properties of
Moringa oleifera.
Alanine transaminase (ALT)
Table 5 showed the ALT value before parturition in subsequent groups was 37.75±5.48U/L and 31.32±5.48U/L respectively, at the day of parturition mean ALT it was 33.91±2.84U/L and 34.85±5.82U/L respectively and after parturition mean ALT was 38.66±10.92U/L and43.61±7.45U/L in untreated and supplemented group respectively. However,
El-Esawy et al. (2018) and
Redekar et al., (2019) studied no effect of moringa supplementation on ALT.
Total protein
Mean total serum protein levels before parturition were 5.89 ± 0.34 g/dl (control) and 5.79 ± 0.27 g/dl (moringa group). At parturition, values were 7.35 ± 0.36 g/dl and 4.92 ± 0.34 g/dl, while post-partum levels were 5.46 ± 0.18 g/dl and 5.74 ± 0.18 g/dl, respectively (Table 5). Differences between groups were non-significant. The results align with previous studies reporting variable effects of
Moringa oleifera supplementation on serum protein levels
(Khalel et al., 2014; Damor et al., 2017b; Mahmoud, 2013;
Zeng et al., 2017).
Albumin
Mean serum albumin levels before parturition were 3.48±0.21 g/dl (control) and 3.25 ± 0.19 g/dl (moringa group). At parturition, values were 2.38 ± 0.30 g/dl and 3.25 ± 0.19 g/dl, while post-partum levels were 3.60 ± 0.09 g/dl and 3.48 ± 0.09 g/dl, respectively (Table 5). Differences between groups were non-significant. Higher albumin levels reported in moringa-fed animals by
El-Esawy et al. (2018) and
Ndlovu et al., (2007) suggest improved protein utilization, though no adverse effects were observed in the present study.
Globulin
Mean serum globulin values before parturition were 2.41 ± 0.16 g/dl (control) and 2.53 ± 0.19 g/dl (moringa group). At parturition, values were 4.97 ± 0.54 g/dl and 1.70 ± 0.24 g/dl and post-partum values were 1.86 ± 0.16 g/dl and 2.25 ± 0.20 g/dl, respectively (Table 5). Normal globulin levels indicate a healthy immune status and moringa supplementation appeared to support immunity. Similar trends were reported by
El-Esawy et al. (2018), while
Mahmoud (2013) and
Meel et al., (2018) observed non-significant or reduced globulin values with moringa feeding.
Triglyceride
Mean serum triglyceride levels before parturition were 59.10 ± 3.88 mg/dl (control) and 85.30 ± 3.61 mg/dl (moringa group). At parturition, values were 63.56 ± 3.81 mg/dl and 54.48 ± 9.60 mg/dl and post-partum levels were 83.65 ± 5.59 mg/dl and 70.23 ± 12.80 mg/dl, respectively (Table 5). Although differences were non-significant, moringa supplementation tended to lower triglyceride levels, possibly due to bioactive phenolic compounds (saponins, flavonoids, tannins) that reduce lipid absorption
(Adriani et al., 2014). Values remained within normal physiological range
(Kaneko et al., 2008), consistent with
Kholif et al., (2016) and
Zeng et al., (2017).
Economics of feeding dried Moringa oleifera stem
Replacement of 20% concentrate with dried
Moringa oleifera stem reduced concentrate intake (4.40 vs. 3.52 kg/day) and incorporated 0.88 kg/day of moringa in T
1, while green berseem and paddy straw inta ke remained similar between groups (Table 6). The cost of dried moringa stem was estimated at ₹3/kg. Total feeding cost decreased from ₹180.32/cow/day (T
0) to ₹154.26/cow/day (T
1), reducing milk production cost from ₹35.50/kg to ₹28.89/kg. Net profit per kg milk increased from ₹9.50 (control) to ₹16.11 (moringa group), indicating economic benefits of moringa supplementation, in agreement with
Khalel et al., (2014).