Effects of Calcium Salts of Palm Fatty Acids and Protected Methionine Supplementation on Milk Production and Composition and Reproductive Performances of Early Lactation Dairy Cows

Salem, Mondher Ben; Bouraoui, Rachid

doi:10.3923/ijds.2008.187.193

Cited by 18 publications

(11 citation statements)

References 21 publications

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“…Higher peak yield and milk production observed in G2 may be attributed to bypass fat supplementation which increased the energy density of the ration resulting in reducing the deleterious effect of negative energy balance. The present results are in line with the findings of Fahey et al (2002), McNamara et al (2003), Mishra et al (2004), and Ben Salem and Bouraoui (2008). The average milk production was 7.4% higher (P<0.05) in G2 than that of G1 in the 90 days carry over period.…”

Section: Feed Intake and Milk Productionsupporting

confidence: 96%

“…The service period was shorter in G2 than that of G1, indicating that lesser time was required for the animals in G2 for conception. Similar observation of reduction in service period through feeding of bypass fat was also recorded by Ben Salem and Bouraoui (2008) and Lopes et al (2009). Cows of G2 required one less AI per conception than those of G2 indicating better efficiency of AI in G2.…”

Section: Reproductive Performancesupporting

confidence: 77%

“…Initially, the role of protected fat was considered only as an energy supplement during the transition period leading to improvement in reproductive performance, but later on, it was demonstrated that the effect was also due to fatty acids which act as a precursor of progesterone via cholesterol and prostaglandins (Staples et al 1998). Reported improvement from added fat includes higher conception rate (Ben Salem and Bouraoui 2008;Cerri et al 2009;Moriel et al 2009), increased pregnancy rate, and reduced service period (Lopes et al 2007).…”

Section: Introductionmentioning

confidence: 95%

“…Thus, the deleterious effect of acute negative energy balance on lactation can be avoided. A number of studies have reported a positive effect of dietary fat supplementation on reproductive performance in dairy cows (Ben Salem and Bouraoui 2008;Hess et al 2008;Lopes et al 2009). Initially, the role of protected fat was considered only as an energy supplement during the transition period leading to improvement in reproductive performance, but later on, it was demonstrated that the effect was also due to fatty acids which act as a precursor of progesterone via cholesterol and prostaglandins (Staples et al 1998).…”

Section: Introductionmentioning

confidence: 97%

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Effect of bypass fat supplementation on productive and reproductive performance in crossbred cows

Tyagi

Thakur

Shelke

2010

Trop Anim Health Prod

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Objectives of the present study were to evaluate the effects of supplementation of bypass fat on milk production and reproductive performance of crossbred cows. Nineteen multiparous crossbred cows (2-4 lactation) were divided in two groups on the basis of most probable production ability (MPPA). The animals in group 1 (nine cows, MPPA 3,441.32 kg, control group G1) were fed chaffed wheat straw, chopped green maize, and concentrate mixture as per requirements while the animals in group 2 (10 cows, MPPA 3,457.2 kg, treatment group G2) were fed the same ration supplemented with 2.5% bypass fat (on DMI basis). The cows of G2 were supplemented bypass fat 40 days prepartum to 90 days postpartum and carry over effect of supplementation on milk production and reproductive parameters was monitored up to 210 days of lactation. Average birth weights of the calves were 24.94 and 27.95 kg in G1 and G2, respectively. The calving per cent in G1 (88.88%) was lower than that of G2 (100%). The time taken for expulsion of fetal membranes was decreased (P<0.05) by 5.4 h in G2 compared to G1. Days required for involution of uterus was less (P<0.05) in G2 (35.40 days) than that of G1 (49.44 days). Less number of cases of retention of fetal membranes (RFM) and metritis were observed in G2 as compared to that of G1. The average milk yield (210 days) in G2 was higher (P<0.05) than that of G1 (18.65 vs 17.57 kg/day). Similarly, the milk yield during the carry over period (90 days) was higher (P<0.05) in G2 than that of G1 (14.81 vs 13.79 kg/day). The time required for onset of cyclicity was reduced (P<0.05) by 6.5 days in G2 as compared to that of G1. The service period and AI per conception were also reduced (P<0.05) in G2 while bypass fat feeding showed no effect on conception rate (P<0.80). There were no differences between the two groups in plasma cholesterol, progesterone and insulin concentrations. Hence, it was concluded that bypass fat supplementation at 2.5% of DMI increased the milk production and reduced the time required for involution of uterus and commencement of cyclicity. AI per conception, incidences of metritis and RFM were also reduced on supplementing bypass fat.

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Section: Feed Intake and Milk Productionsupporting

confidence: 96%

Section: Reproductive Performancesupporting

confidence: 77%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 97%

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Effect of bypass fat supplementation on productive and reproductive performance in crossbred cows

Tyagi

Thakur

Shelke

2010

Trop Anim Health Prod

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“…Generally, feeding lactating cows slightly improved feed conversion ratio of milk production at most lactation days as compared to those fed the control diet, being better for cows fed 5 than 3% PF diet (Table 4). The present results are in line with the findings of Fahey et al (2002);McNamara et al (2003); Mishra et al (2004) and Ben Salem and Bouraoui (2008). Recently, Tyagi et al (2010) found that the average milk production was 7.4% higher (P<0.05) within the 90 days carry over period as affected by feeding cows on PF diet.…”

Section: Milk Productionsupporting

confidence: 93%

IMPACT OF DIETARY PROTECTED FAT (Magnapac) ON PRODUCTIVE AND REPRODUCTIVE PERFORMANCES OF LACTATING HOLSTEIN COWS

Khalil

El-Harairy

Abul-Atta

2012

Journal of Animal and Poultry Production

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To determine the effects of diets supplemented with protected fat (PF) on milk production and reproductive performance, fifteen lactating Holstein cows weighing 490-540 Kg and having 1-4 parities were divided in a completely randomized block design into three similar groups. Cows in the 1 st group were individually fed the control diet, while those in the 2 nd and 3 rd groups were fed control diet supplemented with 3% and 5% of Ca salt of fatty acids (Magnapac) on dry matter basis of concentrate feed mixture (CFM), respectively. The experimental feeding period lasted from 2-3 weeks pre-partum up to the 120 day-post-partum or conception. At calving, duration of placental drop (PD) and uterine involution (UI) were determined. Live body weight (LBW), body condition score (BCS), feed intake (FI) and average daily milk yield (ADMY) were biweekly recorded at the 15 , 30, 45 and 60 lactation days. During the post-partum period, interval from calving to conception (DO), and then number of services per conception (NSC) were recorded. Results showed insignificant differences in LBW, however, cows in 5% PF group showed slight increase in LBW (1.4%) versus reduction in LBW of 3% PF (-2.9%) and control (-5.1%) groups. There were insignificant group differences in BCS, although BCS of 5% PF group was the best as compared to 3% PF or control groups. FI fro CFM of 5% PF group was lower than those of 3% and control groups (10.59 vs. 10.99 and 11.15 kg), but the difference was not significant. ADMY was higher (P<0.05) in 5% than in 3% and control groups (25.19 vs. 24.33 and 24.25 kg/60 d lactation). The duration of PD markedly reduced (P<0.05) by about 3.6 and 3.1 days and UI reduced (P≥0.05) by 3.2 and 3.0 days in 3 and 5% PF groups as compared to the control group, respectively. Also, NSC reduced (P<0.05) to 1.6 and 1.2 services in 3 and 5% PF groups as compared to 3 services in control group. Number of DO was shorter (P<0.05) in 3 and 5% PF groups (40.2 and 46.2 d) than in control one (88.6 d). Feeding PF diets at a level of 5% increased milk yield, feed efficiency and reproductive performance, but showed economic feed efficiency lower than feeding lactating Holstein cows on the control diet.

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Effect of rumen-protected nutrients on feed intake, body weights, milk yield, and composition in Murrah buffaloes during early lactation

Katiyar

Mudgal

Sharma

et al. 2019

Trop Anim Health Prod

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Effects of Calcium Salts of Palm Fatty Acids and Protected Methionine Supplementation on Milk Production and Composition and Reproductive Performances of Early Lactation Dairy Cows

Cited by 18 publications

References 21 publications

Effect of bypass fat supplementation on productive and reproductive performance in crossbred cows

Effect of bypass fat supplementation on productive and reproductive performance in crossbred cows

IMPACT OF DIETARY PROTECTED FAT (Magnapac) ON PRODUCTIVE AND REPRODUCTIVE PERFORMANCES OF LACTATING HOLSTEIN COWS

Effect of rumen-protected nutrients on feed intake, body weights, milk yield, and composition in Murrah buffaloes during early lactation

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