Sobhy Sallam

Alexandria University | AU · Animal and Fish Production

Selenium (Se) supplementation during early lactation can affect not only the ewe's health and milk production but also their lamb performance. This study aimed to investigate the effects of dietary supplementation of two different forms of selenium [inorganic form as sodium selenite (SS), and bio-nanostructured selenium (SeNSM)] on ewes nutrient di...

This study was conducted to examine the effects of neem (Azadirachta indica) seed oil (NSO) on feed intake, ruminal fermentability, feed digestibility, nitrogen balance, and blood parameters in Omani sheep. Nine Omani male sheep (BW; 54.44 ± 8 kg/sheep) were used in a replicated 3x3 Latin Square design with three dietary treatments and three period...

The current study investigated the effect of adding different doses of galangal rhizome powder (Alpinia galanga) to the diets of lactating buffaloes on milk production, composition and in vitro ruminal fermentation kinetics. Twenty buffaloes were divided into four groups: (T1) a control diet comprising of concentrates, corn silage and rice straw at...

Background: Montmorillonite clay modified by organosulfur surfactants possesses high cation exchange capacity (CEC) and adsorption capacity than their unmodified form (UM), therefore they may elevate the adverse impact of aflatoxin B1 (AFB1) on ruminal fermentation and methanogenesis. Chemical and mechanical modifications were used to innovate the...

Zeolite particle size can affect its characteristics as a rumen modifier, thus its form may not only affects the goats' health during the transition period but also their milk quantity and quality. Our objectives of this study were to evaluate the effects of zeolite supplementation either in its natural or nano form on ruminal fermentation characte...

The present study aimed to evaluate the potential of improving the feeding value of Egyptian clover (EC), ryegrass (R), triticale (T), barley (B), and oats (O) monoculture, or Egyptian clover mixed with ryegrass (EC+R), oats (EC+O), barely (EC+B), and triticale (EC+T) at 75:25% seeding rate, respectively, during two successive winter seasons of 201...

Goat milk is an essential alternative milk resource for those suffering from cow and buffalo milk allergies and is considered a nutrient protein source for children and neonates. This paper aims to answer the question: Does adding crude coriander oil to goats' food affect the quality of their milk and the properties of their products? Study the che...

BACKGROUND-AIM The insertion of drought-tolerance plants could be an effective solution for the livestock sustainability after insuring their effects on animal performance. The effects of feeding different drought-tolerance plants with respect to their active components on oestrous behaviour, ovarian activity, steroid profile and reproductive...

The present experiment aimed to evaluate the partial replacement of soybean with slow-release urea (Optigen 1200™) in the diet of lactating cows for 84 d. Three-hundred multiparous lactating Holstein (635 ± 25 kg of body weight, BW) cows were stratified by live body weight; parity and previous milk production were randomly assigned into two experim...

Forty-five male Barki lambs (30.62 AE 4.54 kg BW) were allocated into three treatments designed to evaluate the effect of replacing soybean meal nitrogen with urea supplemented with natural clinoptilolite on performance and carcass characteristics. Lambs were randomly assigned to nine pens blocked according to age and initial BW into three blocks o...

The assay aimed to evaluate the effect of feeding a recently developed phytogenic feed additives mixture in diets of lactating Friesian cows (n = 30; 514 ± 10.1 kg body weight) for 3 months. Cows were stratified into three groups of 10 cows each and fed a control diet alone or the control diet supplemented with the additives mixture at 3 g (PHY3) o...

Two in vitro and in vivo experiments were accomplished to investigate the impacts of integrated feed additives (IFA, combination of protected fat, lysine, and methionine plus yucca extract, eucalyptus essential oil, and direct-fed microbial) on gas production (GP), ruminal fermentation and degradability parameters and lamb performance, digestibilit...

The present study evaluated the effects of forage sources on dry matter (DM) intake, digestibility, and fermentation parameters in camels vs. sheep. The study was arranged as a 2 × 3 factorial experiment in a completely randomized design by using two animal species (three ruminally cannulated female camels and three male sheep) and three forage sou...

The effect of including lemongrass extract powder (LGEP) as a phytogenic herbal extract supplementation for growing rabbits on productive performance, nutrient digestibility, blood parameters and carcase characteristics were evaluated. One hundred twenty unsexed V-Line rabbits, with 35 days age and 802 ± 47 g weight, were used. Rabbits were divided...

As an attempt to prevent transition-period-associated metabolic disorders and/or diseases, the potential benefits of Boswellia sacra (Bs) resin on hematology, immunity, metabolic status, udder and uterus health biomarkers, and milk production were examined in transitioning goats. From 2 weeks prepartum to 7 weeks postpartum, goats (n = 7/treatment)...

The use of safe feed additives in diets of lactating animals has gained increasing interest. The effects of feeding lactating goats on diet supplemented with crude coriander oil at different levels were evaluated. Thirty multiparous lactating Damascus × Baladi goats (27.2 ± 1.0 kg BW) were used in 3 × 3 Latin square design (3 treatments, 3 periods,...

Fifteen multiparous early lactating Friesian cows weighing 466 ± 16.6 kg were randomly assigned, in a quintuplicated 3 × 3 Latin square design experiment, to study the effect of humic acid supplementation on feed utilization and milk production for 90 days. The basal diet composed of concentrates, berseem clover, and rice straw at 5:3:2, respective...

This study aimed to evaluate in vitro and in vivo dietary supplementation with different levels of natural or nano-zeolite forms on rumen fermentation patterns and nutrient digestibility. In the in vitro experiment, a basal diet (50% concentrate: 50% forage) was incubated without additives (control) and with natural zeolite (10, 20, 30 g/kg DM) or...

The effect of feeding palmitic acid-enriched protected fat (PPF) supplement at two levels to increase energy density of diets was tested. In experiment 1, 21 multiparous lactating Holstein cows were fed on a basal diet without PPF supplementation (Control) or supplemented with 250 g (MG250) or 500 g PPF (MG500) for 13 weeks. In experiment 2, 12 adu...

Effects of cinnamon, thyme, and peppermint essential oils blend (EOB) on milk production, serum constituents, and energy balance of early lactating does and performance of their kids were investigated. Twenty-seven late pregnant Damascus goats were grouped into two treatments: EOB (n = 14) received orally 1.5 ml EOB/d and control (n = 13) received...

The effect of feeding palmitic acid-enriched protected fat (PPF) supplement at two levels to increase energy density of diets was tested. In experiment 1, 21 multiparous lactating Holstein cows were fed on a basal diet without PPF supplementation (Control) or supplemented with 250 g (MG250) or 500 g PPF (MG500) for 13 weeks. In experiment 2, 12 adu...

This study was conducted to investigate effects of supplementing two doses of que-bracho tannins (QT; 100 or 200 g/cow/d; QT 100 or QT 200) pre and post parturition to thirty Holstein dairy cows on Dry Matter Intake (DMI), milk yield and composition, blood metabolites and reproductive performance for 12 weeks. There were no significant changes in D...

Two experiments (in vitro and in vivo evaluation) were conducted to evaluate the ability of three different tan-niniferous legumes to replace berseem hay on ruminal fermentation, digestibility and methane (CH 4) emission. Berseem (Trifolium alexandrinum L.) hay (BH) was considered as control, or replaced at 50 % with Acacia saligna (AS), Leucaena l...

Eighty multiparous lactating Holstein cows (635 ± 33 kg) were used to study the effect of feeding Saccharomyces cerevisiae and/or Aspergillus oryzae on lactational performance for 14 weeks. Cows were assigned in a completely randomized experimental design, with repeated measures into four treatments, and were fed a basal diet of concentrates and fo...

Essential oils (EOs) and their active components are attracting a lot of attention as sustainable feed additives due to their known antimicrobial properties against a variety of microorganisms, including bacteria, protozoa, and fungi. They also have biological therapeutic, antioxidant, and flavor properties. They can be used for modifying the rumen...

The effects of supplementing diet of growing lambs with microbial feed additive mixture (direct-fed microbial; DFM) based on Saccharomyces cerevisiae, lactic acid bacteria and exogenous enzymes on feed intake, nutrient digestibility, nitrogen (N) utilization, ruminal fermentation, blood chemistry and growth performance were studied. The study was a...

Twenty Barki goats were used for evaluating the effects of oral administration of selenium yeast plus vitamin E (SYPE) on rumen fermentation, milk production, feed digestibility, blood parameters and resistance to parasites. Goats were randomly divided into two groups of ten animals, control group without any treatment and treated group with 100 mg...

This study aimed at elucidating effects of replacing sorghum with blue panic (BP) on total dry matter intake (TDMI), average daily gain (ADG), feed conversion ratio (FCR), apparent nutrient digestibility, blood biochemical constituents, rumen fermentation patterns and economic feasibility of Barky male lambs. Fifteen lambs (av. BW, 22.5 ± 1.6 kg) w...

The reproductive performance of goats that received a GnRH analog (gonadorelin) fabricated with or without chitosan-sodium tripolyphosphate (TPP) nanoparticles on the day of estrus (day 0) was evaluated. The chitosan-TPP polymer was conjugated with gonadorelin using an ionic gelation method. Thirty-three multiparous Zaraiebi goats were synchronized...

Abstract/ Using salt tolerant polyphenol containing shrubs (STFS) may cover the feed limitation during drought in the Mediterranean. Chemical and phenolic composition of acacia (A. saligna), atriplex (A. halimus), leucaena (L. leucocephala) and moringa (M. oleifera) leaves were evaluated using the in vitro semi-automatic system for gas production....

Abstract/ Teff (E. tef) is grown to produce gluten-free grains, this leads to production of sustainable abundance amounts of teff straw which is mostly neglected. Direct fed microbial and fibrolytic enzymes (DFM) can be used to upgrade the quality of teff straw and mitigate ruminal methanogenesis. Twelve Barki lambs were randomly allotted into thre...

IMPACT OF SUPPLEMENTARY MORINGA OLEIFERA LEAF EXTRACT ON RUMINAL NUTRIENT DEGRADATION AND MITIGATING METHANE FORMATION IN VITRO Yosra A. Soltan1*, A. S. Morsy2, Nesreen M. Hashem1, and S. M.A. Sallam1 1 Department of Animal and Fish production, Faculty of Agriculture, Alexandria University, Alexandria, Egypt. 2 Livestock Research Department, Arid L...

BACKGROUND In experiment one, we studied the effect of malic acid addition at 0, 1, 2 and 3 mg g‐1 dry matter (DM) feed on in vitro ruminal fermentation. In experiment two, the effect of supplementing malic acid on feed intake, digestion and milk production and composition was studied. Two‐hundred multiparous lactating Holstein dairy cows were rand...

This work, for the first time, identified the phytochemical constituents of leaves, fruits, stem barks, and wood branches extracted from the tree pruning wastes of Leucaena leucocephala (Lam.) de Wit. grown in Egypt, showing 49, 29, 34, and 27 phytocomponents, respectively, as assayed by gas chromatograph-mass spectroscopy (GC-MS) analysis. The maj...

Twenty Barki goats were used for evaluating the effects of oral administration of Selenium Yeast Plus vitamin E (SYPE) on rumen fermentation, milk production, feed digestibility, blood parameters and resistance to parasites. Goats were randomly divided into two groups of ten animals, control group without any treatment and treated group with 100 mg...

Guava leaves (Psidium guajava, GL), a high-phenolic- and flavonoid-containing plant resource capable of substituting the high-quality forage, may help in mitigating ruminal methane (CH4) emission without adverse impact on nutrient degradability if supplemented at an appropriate level. In order to test this hypothesis, rumen fermentation, CH4 produc...

This study was conducted to investigate the effects of 10 weeks supplementation of Quebracho tannins (QT; 0 [control], 100 [QT100] or 200 g/[cow·d] [QT200]) to 30 multiparous postpartum buffalo cows (10 cows per group) on milk yield and composition, blood metabolites and reproductive performance. Supplementation of QT100 had no significant effect o...

Impact of humic acid (HA) on ruminal fermentation characteristics, blood parameters and milk yield in goats and growth rate of their kids was determined. Twenty late pregnant Barki goats (45.4 ± 1.5 kg body weight) were allocated into two treatments (10 goats per treatment), housed individually in closed pens (one goat per pen) and fed a total mixe...

This study was designed to determine characteristics of rumen fermentation and post-ruminal protein digestion of Egyptian tanniniferous plants in comparison with two high quality roughages using gas production (GP) technique and the three steps in situ/in vitro procedures. Tanniniferous plants included Acacia saligna, Atriplex halimus, Prosopis gau...

Phytoestrogens are classified as naturally occurring endocrine disrupting chemicals that may affect reproductive performance of farm animals. To investigate the effects of Berseem clover phytoestrogens on reproductive performance of seasonal anoestrus ewes, twenty four late pregnant Rahmani ewes were fed either Berseem clover or maize silage (n = 1...

Feeding transition ewes on salt tolerant forages was proposed to enhance the immune response and milk production. Forty pregnant Barki ewes were assigned to four experimental diets (n=10 each): i.e. control [40% berseem hay (Trifolium alexandrinum) and 60% concentrate mix] or salt tolerant forage diets [40% either cassava (Manihot esculenta), acaci...

Leucaena leucocephala trees are commonly known as White Lead tree. It is native to Southern Mexico and Northern Central America and spread across many tropical and subtropical locations. It has multipurpose uses, such as generation of firewood, timber, greens, fodder, and green manure, as well as to provide shade and control soil erosion. It has be...

Saccharomyces cerevisiae, Aspergillus oryzae, blood metabolites, cow performance, mid lactation

Bactozyme, digestibility, growth performance, Blood metabolites.

In Egypt, animals suffer from under feeding and mal-nutrition due to the shortage of local produced feed which are not sufficient to cover the nutritional requirements of animals. The annually amount produced of agro-by¬products in Egypt are around 2.5 million ton of rice straw and one million ton of sugarcane bagasse. These wastes are usually burn...

Investigating effects of partial (50%) or total (100%) substitution of clover hay by tannins-rich plant (Acacia saligna) on productive and reproductive performance of ewe lambs was the main goal of this study. Two experiments were conducted: first focusing on digestibility and N balance using 9 Barky rams (live body weight, 43 ± 2.5 kg) where anima...

The present review provides information regarding the nutritional importance of bioactive components of Moringa (Moringa oleifera) for ruminants. Moringa leaves have high quality of protein balanced with its amino acids, thus the leaves are the most part used as a source of protein, however; it is well known for high ruminal degradability of protei...

Two comparative in vitro and in vivo experiments were accomplished to assess the effects of Moringa oleifera root bark (MRB) and ionophore antibiotic monensin as dietary feed additives for ruminants' diets. In the in vitro experiment, the effects of graded levels of MRB (0, 25 and 50 g/kg DM) and monensin (40 mg/kg DM) on ruminal fermentation and d...

This study was conducted to evaluate the effects of replacing cracked maize with increasing levels of sugar beet pulp (SBP) on nutrients digestibility, blood biochemical and rumen fermentation constituents and animal performance of growing Egyptian buffalo calves. Forty male Egyptian buffalo calves (237.2 ± 24.46 kg of initial body weight, IBW) wer...

Background: The current study was carried out to investigate addition of lemongrass or galangal to diet and its effect of productive performance of lactating Barki goats. Materials and Methods: Thirty lactating Barki goats were divided into three groups (10 animals per each treatment), first group was fed control diet without additives, consist of...

Thirty multiparous lactating Friesian cows (523 ± 8.9 kg BW) were used to study the effect of feeding coriander oil, a natural feed additive, versus salinomycin; an ionophore. Early lactation Friesian cows were used for 63 days in a completely randomized experimental design with repeated measures. Cows were randomly assigned to three treatments and...

This study was conducted to investigate effects of supplementing two doses of que-bracho tannins (QT; 100 or 200 g/cow/d; QT 100 or QT 200) pre and post parturition to thirty Holstein dairy cows on Dry Matter Intake (DMI), milk yield and composition, blood metabolites and reproductive performance for 12 weeks. There were no significant changes in D...

The comparative evaluation of different, less-well researched forages will yield promising candidates to overcome the limitations of feed sources in most sub-tropic areas during drought and may enhance the immune response and milk production as well. Diets substitution of berseem (Trifolium alexandrinum ) hay by leaves of cassava (Manihot esculenta...

conference abstract

Twenty Santa Inês ewes used to evaluate effects of oral administration of Brazilian red propolis extract on blood metabolites, milk production, and lamb performance were randomly grouped (n = 10 ewes/group) to control without propolis administration and propolis treated (3 g red propolis extract/ewe/day) 21 days before expected lambing date. Blood...